Web Sensor P8510
Web Sensor P8511
Web Sensor P8541
USER GUIDE
P8510 Web Sensor Ethernet Remote Thermometer
IE-SNC-P85x1-19
© Copyright: COMET SYSTEM, s.r.o.
Is prohibited to copy and make any changes in this manual, without explicit agreement of company COMET SYSTEM, s.r.o. All rights reserved.
COMET SYSTEM, s.r.o. makes constant development and improvement of their products.
Manufacturer reserves the right to make technical changes to the device without previous notice. Misprints reserved.
Manufacturer is not responsible for damages caused by using the device in conflict with this manual. To damages caused by using the device in conflict with this manual cannot be provide free repairs during the warranty period.
Contact the manufacturer of this device:
COMET SYSTEM, s.r.o.
Bezrucova 2901
756 61 Roznov pod Radhostem
Czech Republic
www.cometsystem.com
Revision history
This manual describes devices with latest firmware version according the table below. Older version of manual can be obtained from a technical support.
| Document version | Date of issue | Firmware version | Note |
| IE-SNC-P85x1-09 | 2011-01-27 | 4-5-1-x | Latest revision of manual for an old generation of firmware for P85xx devices. |
| IE-SNC-P85x1-13 | 2014-02-07 | 4-5-5-x 4-5-6-0 | Initial revision of manual for new generation of P85xx firmware. |
| IE-SNC-P85x1-14 | 2015-06-30 | 4-5-7-0 | |
| IE-SNC-P85x1-16 | 2017-01-11 | 4-5-8-0 | |
| IE-SNC-P85x1-17 | 2017-10-26 | 4-5-8-1 |
Introduction
This chapter provides basic information about device. Before starting please read this manual carefully.
Thermometer Web Sensor P8510 or Web Sensor P8511 and Web Sensor P8541 are used to measure temperature or relative humidity. Temperature can be displayed in °C or °F. Relative humidity have unit %RH. Communication with the device is realized via Ethernet network.
Thermometer Web Sensor P8510 has compact design and measures the temperature in place of installation. Web Sensor P8511 is designed to connect one probe. To Web Sensor P8541 is possible connect up to four probes. Temperature or humidity probes are available as optional accessories.
General safety rules
The following summary is used to reduce the risk of injury or damage the device. To prevent injury, please follow instructions in this manual.
The device can be services only by a qualified person. The device contains no serviceable parts inside.
Don’t use the device, if it doesn’t work correctly. If you think, that the device is not working correctly, let check it by qualified service person.
It’s forbidden to use the device without the cover. Inside the device can be a dangerous voltage and may be risk of electric shock.
Use only the appropriate power supply adapter according to manufacturer specifications and approved according to relevant standards. Make sure, that the adapter does not have damaged cables or covers.
Connect the device only to network parts approved according to relevant standards.
Connect and disconnect the device properly. Don’t connect or disconnect Ethernet cable or probes if the device is powered.
The device may be installed only in prescribed areas. Never expose the device to higher or lower temperatures than is allowed. The device has not improved resistance to moisture.
Protect it from dripping or splashing water and do not use at areas with condensation.
Don’t use device in potentially explosive environments. Don’t stress the device mechanically.
Device description and important notices
This chapter contains information about basic features. Also there are important notices concerning to functional safety.
Values from the device can be read using an Ethernet connection. The following formats are supported:
- Web pages
- Current values in XML and JSON format
- Modbus TCP protocol
- SNMPv1 protocol
- SOAP protocol
The device can also be used to check measured values and if the limit is exceeded, device sends warning messages. Possible ways to sending warning messages:
- Sending e-mails up to 3 e-mail addresses
- Sending SNMP traps up to 3 configurable IP addresses
- Displaying the alarm status on web page
- Sending messages to Syslog server
The device setup can be made by the Tensor software or web interface. Tensor software can be free downloaded from the manufacturer’s website. Latest firmware can be obtained from the technical support. Do not upload to your device firmware which is not designed for it. Unsupported firmware can damage your device.
Device does not support powering over Ethernet cable (PoE). PoE splitter must be used.
Compatible PoE splitter can be purchased as optional accessories. Splitter must have 5V output with approximately 1W.
Reliability of warning messages delivering (e-mail, trap, syslog), depends on actual availability of necessary network services. The device should not be used for critical applications, where malfunction could cause to injury or loss of human life. For highly reliable systems, redundancy is essential. For more information please see standard IEC 61508 and IEC 61511.
Never connect the device directly to the Internet. If it is necessary connect the device to the Internet, properly configured firewall must be used. Firewall can be partially replaced with the NAT.
Getting started
Here you can find information necessary to put newly purchased equipment to operation. This procedure is only informative.
What is needed for operation
To install the unit you need to the following equipment. Before installation check if it’s available.
- Web Sensor P8510 or Web Sensor P8511, P8541
- power supply adapter 5V/250mA (or compatible PoE splitter)
- RJ45 LAN connection with appropriate cable
- free IP address in your network
- for Web Sensor P8511 one probe. For Web Sensor P8541 up to 4 temperatures probes type DSTR162/C, DSTGL40/C, DSTG8/C or relative humidity probe DSRH
Mounting the device
- check if the equipment from previous chapter are available
- install the latest version of Tensor software. This software is used to all device settings. Tensor software can be free downloaded from the manufacturer’s website. Software can be also supplied on CD. Device configuration can be made using web interface. For web configuration is not Tensor software necessary.
- contact your network administrator to obtain following information for the connection to the network:
IP address:……………………………………
Gateway:……………………………………
DNS server IP:………………………………
Netmask:……………………………………
- check if there is no IP address conflict when you connect the device into network for the first time. The device has from factory set the IP address to 192.168.1.213. This address must be changed according to information from the previous step. When you installing several new devices, connect them to the network one after another.
- connect probes to Web Sensor P8511 or Web Sensor P8541
- connect the Ethernet connector
- connect the power adapter 5V/250mA
- LEDs on LAN connector should blink after connecting the power
Web Sensor P8510 connection:
Web Sensor P8511 connection:
Web Sensor P8541 connection:
Connect via PoE splitter:
Device settings
- run configuration software TSensor on your PC
- switch to an Ethernet communication interface
- press button Find device…
- the window shows all available devices on your network
click to Change IP address to set new address according to network administrator instructions. If your device is not listed, then click Help! My device wasn’t found! Then follow the instructions. MAC address is on product label. The device is factory set to IP 192.168.1.213.
- gateway may not be entered if you want to use the device only in local network. If you set the same IP address which is already used, the device will not work correctly and there will be collisions on the network. If the device detects a collision of IP address, then reboot is performed automatically.
- after changing IP address device is restarted and new IP address is assigned. Restart of the device takes about 10 seconds.
- connect to device using Tensor software and check the measured values. If Web Sensor P8511 or Web Sensor P8541 values are not displayed, it’s necessary to find probes using button Search probes (Find probes).
- set the other parameters (alarm limits, SMTP server, etc.). Settings are saved after click on button Save changes.
Checking functions
The last step is to check measured values on the device website. Enter the device IP address into address bar of the web browser. If the default IP address was not changed, then insert http://192.168.1.213.
Displayed web page lists actual measured values. If the web pages are disabled, you can see text Access denied. If the measured value exceeds the measurement range or probe is not correctly installed, then is shown Error message. If the channel is switched off, the web site displayed n/a instead of the value.
Device setup
This chapter describes basic device configuration. There is a description of settings using web interface.
Setup using web interface
Device can be setup using web interface or Tensor software. Web interface can be managed by the web browser. Main page will be shown when you insert device address into address bar of your web browser. There you find actual measured values. Page with history graphs is shown when you click to tile with actual values. Access to device setup is possible via tile Settings.
General
Device name can be changed using item Device name. Measured values are stored into memory according History storage interval field. After changing of this interval all history values will be cleared. Changes must be confirmed by Apply settings button.
Network
Network parameters can be obtain automatically from DHCP server using option Obtain an IP address automatically. Static IP address is configurable via field IP address. It is not necessary setup Default gateway while you use device inside one subnet only. DNS
server IP is required to set for proper function of DNS. Option Standard subnet mask sets network mask automatically according A, B or C network class. Subnet mask field must be set manually, when network with non-standard range is used. Periodic restart interval enables to restart device after selected time since device start.
Alarm limits
For each measurement channel is possible to set upper and lower limits, time-delay for alarm activation and hysteresis for alarm clearing.
Example of setting the limit to the upper alarm limit:
In Point 1 the temperature exceeded the limit. From this time, the time-delay is counting.
Because at point 2 the temperature dropped below the limit value before the time delay expired, alarm was not set.
In Point 3 the temperature has risen over limit again. During the time-delay the value does not drop below the set limit, and therefore was in Point 4 caused alarm. At this moment were sent e-mails, traps and set alarm flag on website, SNMP and Modbus.
The alarm lasted up to Point 5, when the temperature dropped below the set hysteresis (temperature limit – hysteresis). At this moment was active alarm cleared and e-mail send.
When alarm occurs, alarm messages will be sent. In case of power failure or device reset (e.g. changing the configuration) will new alarm state evaluated and new alarm messages will be send.
Channels
Channel can be enabled or disabled for measuring using item Enabled. Channel can be renamed (max. 14 characters) and it is possible select unit of measured value according connected probe type. When channel is not used, it is possible copy to it one of other
channels – option Clone channel. This option is not available at fully occupied device. Find sensors button starts searching for connected probes. All changes must be confirmed using Apply settings button. History values are cleared after changing of channel settings.
SOAP protocol
SOAP protocol can be enabled by option SOAP protocol enabled. Destination SOAP server can be set via SOAP server address. For setup of server port can be used option SOAP server port. Device sends SOAP message according selected Sending interval.
Option Send SOAP message when alarm occurs sends message when an alarm on channel occurs or alarm is cleared. These SOAP messages are sent asynchronously to selected interval.
Email
Email sending enabled option allows email features. It is necessary set address of the SMTP server into SMTP server address field. Domain name for SMTP server can be used.
Default port of the SMTP server can be changed using item SMTP server port. SMTP authentication can be enabled using SMTP authentication option. When authentication is enabled Username and Password must be set.
For successfully email sending it is necessary insert Email sender address. This address is usually same as username of the SMTP authentication. Into fields Recipient 1 to Recipient 3 it is possible set address of email recipients. Option Short email enable sending emails in short format. This format is usable when you need to forward emails into SMS messages.
When option Alarm email repeat sending interval is enabled and there is active alarm on channel, then emails with actual values are sent repeatedly. Info email sending interval option enables sending emails at selected time interval. CSV history file can be sent together with the repeat/info emails. This feature can be enabled by Alarm and Info emails attachment option.
It is possible to test email function using button Apply and test. This button save a new settings and send a testing email immediately.
Email sending enabled option allows email features. It is necessary set address of the SMTP server into SMTP server address field. Domain name for SMTP server can be used. Default port of the SMTP server can be changed using item SMTP server port. SMTP
authentication can be enabled using SMTP authentication option. When authentication is enabled Username and Password must be set.
For successfully email sending it is necessary insert Email sender address. This address is usually same as username of the SMTP authentication. Into fields Recipient 1 to Recipient 3 it is possible set address of email recipients. Option Short email enable sending emails in short format. This format is usable when you need to forward emails into SMS messages.
When option Alarm email repeat sending interval is enabled and there is active alarm on channel, then emails with actual values are sent repeatedly. Info email sending interval option enables sending emails at selected time interval. CSV history file can be sent together with the repeat/info emails. This feature can be enabled by Alarm and Info emails attachment option.
It is possible to test email function using button Apply and test. This button save a new settings and send a testing email immediately.
Modbus a Syslog protocols
Modbus TCP and Syslog protocol settings are configurable via menu Protocols. Modbus server is enabled by default. Deactivation is possible via Modbus server enabled option.
Modbus port can be changed via Modbus port field. Syslog protocol can be enabled using item Syslog enabled. Syslog messages are sent to IP address of the Syslog server – field Syslog server IP address.
SNMP
For reading values via SNMP it is necessary to know password – SNMP read community.
SNMP Trap can be delivered up to three IP address – IP address of the Trap recipient.
SNMP Traps are sent at alarm or error state on the channel. Trap feature can be enabled by option Trap enabled.
Time
Time synchronization with SNTP server can be enabled by Time synchronization enabled option. IP address of the SNTP is necessary to set into SNTP server IP address item. List of free NTP servers is available at www.pool.ntp.org/en. SNTP time is synchronized at UTC format, and due to be necessary set corresponding time offset – GMT offset [min]. Time is synchronized every 24 hours by default. Option NTP synchronization every hour decrease this synchronization interval to one hour.
WWW and security
Security features can be enabled by the Security enabled option. When security is enabled it is necessary to set administrator password. This password will be required for device settings. When secured access is required even to actual values reading it is possible to enable User account only for viewing. Port of the www server can be changed from the default value 80 using filed WWW port. Web pages with actual values are refreshed according to Web refresh interval field.
Memory for minimal and maximal values
Minimal and maximal measured values are stored into the memory. This memory is independent from values stored in history memory (charts). Memory for minimal and maximal values is cleared in case of device restart or by the user request. In case of device
time is synchronized with SNTP server, timestamps for minimal and maximal values are available.
Backup and restore configuration
Device configuration can be saved into file and restored if needed. Compatible parts of configuration can be uploaded into another device type. Configuration can be moved only within devices at same family. It is not possible restore configuration from p-line Web Sensor into t-line Web Sensor and conversely.
Setup using TSensor software
TSensor software is an alternative to web configuration. Some less important parameters are configurable only by the TSensor software.
Parameter MTU size can reduce size of the Ethernet frame. Lowering of this size can solve some communication problems mainly with Cisco network infrastructure and VPN. Sensor software can set offset of values at temperature probes. At DSRH humidity probe is possible set correction of the humidity and temperature.
Factory defaults
Factory defaults button set the device into factory configuration. Network parameters (IP address, Subnet mask, Gateway, DNS) are left without changes.
Network parameters are changed while you close jumper inside the device. After jumper closing it is necessary connect power supply. Factory defaults have no effect to user correction inside probe.
Factory parameters settings:
| Parameter | Value |
| SMTP server address | example.com |
| SMTP server port | 25 |
| Alarm email repeat sending interval | off |
| Info email repeat sending interval | off |
| Alarm and Info emails attachment | off |
| Short email | off |
| E-mail recipients addresses | cleared |
| E-mail sender | sensor@websensor.net |
| SMTP authentication | off |
| SMTP user/SMTP password | cleared |
| E-mail sending enabled | off |
| IP addresses SNMP traps recipients | 0.0.0.0 |
| System location | cleared |
| Password for SNMP reading | public |
| Sending SNMP Trap | off |
| Website refresh interval [sec] | 10 |
| Website enabled | yes |
| Website port | 80 |
| Security | off |
| Administrator password | cleared |
| User password | cleared |
| Modbus TCP protocol port | 502 |
| Modbus TCP enabled | yes |
| History storage interval [sec] | 60 |
| SOAP message when alarm occurs | yes |
| SOAP destination port | 80 |
| SOAP server address | cleared |
| SOAP sending interval [sec] | 60 |
| SOAP protocol enabled | off |
| Syslog server IP address | 0.0.0.0 |
| Syslog protocol enabled | off |
| SNTP server IP address | 0.0.0.0 |
| GMT offset [min] | 0 |
| NTP synchronization every hour | off |
| SNTP synchronization enabled | off |
| MTU | 1400 |
| Periodic restart interval | off |
| Demo mode | off |
| Upper limit | 50 |
| Lower limit | 0 |
| Hysteresis – hysteresis for alarm clearing | 1 |
| Delay – time-delay of alarm activation [sec] | 30 |
| Channel enabled | all channels |
| Unit on the channel | °C or %RH according used probe |
| Channel name | Channel X (where X is 1 to 5) |
| Device name | Web sensor |
Communication protocols
Short introduction to communication protocols of the device. To use some communication protocols is necessary software, which can use the protocol. This software is not included. For detailed description of protocols and application notes please contact your distributor.
Website
The device supports displaying of measured values, history graphs and configuration using web browser. History graphs are based on HTML5 canvas. Web browser must support this feature for proper function of graphs. Firefox, Opera, Chrome or Internet Explorer 11 can be used. If the device has IP address 192.168.1.213 type into your browser http://192.168.1.213. Using Tensor software or web interface can be set automatic webpages refresh in interval. The default value is 10sec. Actual measured values can be
obtained using XML file values.xml and JSON file values. json.
Values from history can be exported in CSV format. History storage interval can be set using Tensor software or web interface. History is erased after every reboot of the device. Reboot of the device is performed when the power supply is disconnected and also after configuration change.
SMTP – sending e-mails
When measured values are over the set limits, the device allows send e-mail to a maximum of 3 addresses. E-mail is send when alarm condition on the channel is cleared or a measuring error occurs. It is possible to set repeat interval for email sending. For correct sending of emails it is necessary to set address of SMTP server. Domain address can be used as SMTP server address too. For proper function of DNS is required to set DNS server IP address. SMTP authentication is supported but SSL/STARTTLS not. Standard SMTP port 25 is used by default. SMTP port can be changed. Contact your network administrator to obtain configuration parameters of your SMTP server. E-mail sent by the device cannot be answered.
SNMP
Using SNMP protocol you can read actual measured values, alarm status and alarm parameters. Via SNMP protocol is also possible to get last 1000 measured values from history table. Writing via SNMP protocol is not supported. It is supported SNMPv1 protocol version only. SNMP used UDP port 161. OID keys description can be found in the MIB table, which can be obtained from device website or from your distributor. The password for reading is factory set to public. Filed System location (OID 1.3.6.1.2.1.1.6 – sysLocation) is blank by default. The changes can be made using web interface. OID keys:
| OID | Description | Type |
| .1.3.6.1.4.1.22626.1.5.1 | Device information | |
| .1.3.6.1.4.1.22626.1.5.1.1.0 | Device name | String |
| .1.3.6.1.4.1.22626.1.5.1.2.0 | Serial number | String |
| .1.3.6.1.4.1.22626.1.5.1.3.0 | Device type | Integer |
| .1.3.6.1.4.1.22626.1.5.2.ch | Measured value (wherech is channel number) | |
| .1.3.6.1.4.1.22626.1.5.2.ch.1.0 | Channel name | String |
| .1.3.6.1.4.1.22626.1.5.2.ch.2.0 | Actual value – text | String |
| .1.3.6.1.4.1.22626.1.5.2.ch.3.0 | Actual value | Int*10 |
| .1.3.6.1.4.1.22626.1.5.2.ch.4.0 | Alarm on channel (0/1/2) | Integer |
| .1.3.6.1.4.1.22626.1.5.2.ch.5.0 | High limit | Int*10 |
| .1.3.6.1.4.1.22626.1.5.2.ch.6.0 | Low limit | Int*10 |
| .1.3.6.1.4.1.22626.1.5.2.ch.7.0 | Hysteresis | Int*10 |
| .1.3.6.1.4.1.22626.1.5.2.ch.8.0 | Delay | Integer |
| .1.3.6.1.4.1.22626.1.5.2.ch.9.0 | Unit | String |
| .1.3.6.1.4.1.22626.1.5.2.ch.10.0 | Alarm on channel – text | String |
| .1.3.6.1.4.1.22626.1.5.2.ch.11.0 | Minimal value on channel | String |
| .1.3.6.1.4.1.22626.1.5.2.ch.12.0 | Maximal value on channel | String |
| .1.3.6.1.4.1.22626.1.5.3.1.0 | SNMP Trap text | String |
| .1.3.6.1.4.1.22626.1.5.4.1.1.ch.nr | History table value | Int*10 |
When alarm occurred a warning messages (trap) can be sent to selected IP addresses.
Addresses can be set using Tensor software or web interface. Traps are sent via UDP protocol on port 162. The device can send following traps:
| Trap | Description | |
| 0/0 | Reset of the device | |
| 6/0 | Testing Trap | |
| 6/1 | NTP synchronization error | |
| 6/2 |
E-mail sending error |
SMTP server login error |
| 6/3 | SMTP authentication error | |
| 6/4 | Some error occurred during SMTP communication | |
| 6/5 | TCP connection to server cannot be opened | |
| 6/6 | SMTP server DNS error | |
| 6/7 |
SOAP message sending error |
SOAP file not found inside web memory |
| 6/8 | MAC address can’t be obtained from address | |
| 6/9 | TCP connection to server cannot be opened | |
| 6/10 | Wrong response code from the SOAP server | |
| 6/11 – 6/15 | Upper alarm on channel | |
| 6/21 – 6/25 | Lower alarm on channel | |
| 6/31 – 6/35 | Clearing alarm on channel | |
| 6/41 – 6/45 | Measuring error | |
Modbus TCP
Device supports Modbus protocol for communication with SCADA systems. Device use Modbus TCP protocol. TCP port is set to 502 by default. Port can be changed using Sensor software or web interface. Only two Modbus clients can be connected to device at one moment. Modbus device address (Unit Identifier) can be arbitrary. Modbus write command is not supported. Specification and description of the Modbus protocol is free to download on: www.modbus.org.
Supported Modbus commands (functions):
| Command | Code | Description |
| Read Holding Register (s) | 0x03 | Read 16b register(s) |
| Read Input Register(s) | 0x04 | Read 16b register(s) |
Modbus device registers. Address could be by 1 higher, depending on type used communication library:
| Address [DEC] | Address [HEX] | Value | Type |
| 39970 | 0x9C22 | 1st two digits from serial number | BCD |
| 39971 | 0x9C23 | 2nd two digits from serial number | BCD |
| 39972 | 0x9C24 | 3rd two digits from serial number | BCD |
| 39973 | 0x9C25 | 4th two digits from serial number | BCD |
| 39974 | 0x9C26 | Device type | uInt |
| 39975 – 39978 | 0x9C27 – 0x09C2A | Actual measured value on channel | Int*10 |
| 39980 – 39983 | 0x9C2C – 0x9C2F | Unit on the channel | Ascii |
| 39985 – 39988 | 0x9C31 – 0x9C34 | Channel alarm state | uInt |
| 39990 – 39999 | 0x9C36 – 0x9C3F | Unused | n/a |
| 40000 | 0x9C40 | Channel 1 temperature | Int*10 |
| 40001 | 0x9C41 | Channel 1 alarm status | Ascii |
| 40002 | 0x9C42 | Channel 1 upper limit | Int*10 |
| 40003 | 0x9C43 | Channel 1 lower limit | Int*10 |
| 40004 | 0x9C44 | Channel 1 hysteresis | Int*10 |
| 40005 | 0x9C45 | Channel 1 delay | uInt |
| 40006 | 0x9C46 | Channel 2 temperature | Int*10 |
| 40007 | 0x9C47 | Channel 2 alarm status | Ascii |
| 40008 | 0x9C48 | Channel 2 upper limit | Int*10 |
| 40009 | 0x9C49 | Channel 2 lower limit | Int*10 |
| 40010 | 0x9C4A | Channel 2 hysteresis | Int*10 |
| 40011 | 0x9C4B | Channel 2 delay | uInt |
| 40012 | 0x9C4C | Channel 3 temperature | Int*10 |
| 40013 | 0x9C4D | Channel 3 alarm status | Ascii |
| 40014 | 0x9C4E | Channel 3 upper limit | Int*10 |
| 40015 | 0x9C4F | Channel 3 lower limit | Int*10 |
| 40016 | 0x9C50 | Channel 3 hysteresis | Int*10 |
| 40017 | 0x9C51 | Channel 3 delay | uInt |
| 40018 | 0x9C52 | Channel 4 temperature | Int*10 |
| 40019 | 0x9C53 | Channel 4 alarm status | Ascii |
| 40020 | 0x9C54 | Channel 4 upper limit | Int*10 |
| 40021 | 0x9C55 | Channel 4 lower limit | Int*10 |
| 40022 | 0x9C56 | Channel 4 hysteresis | Int*10 |
| 40023 | 0x9C57 | Channel 4 delay | uInt |
Description:
| Int*10 | registry is in format integer*10 – 16 bits |
| uInt | registry range is 0-65535 |
| Ascii | character |
| BCD | registry is coded as BCD |
| n/a | item is not defined, should be read |
Possible alarm states:
| no | no alarm |
| lo | value is lower than set limit |
| hi | value is higher than set limit |
SOAP
The device allows you to send currently measured values via SOAP v1.1 protocol. The device sends values in XML format to the web server. The advantage of this protocol is that communication is initialized by the device side. Due to it is not necessary use port forwarding.
If the SOAP message cannot be delivered, warning message via SNMP Trap or Syslog protocol is sent. The file with the XSD schema can be downloaded from: http://cometsystem.cz/schemas/soapP8xxx.xsd. SOAP message example:
| Element | Description | |
| <name> | Device description. | |
| <sn> | Contains the device serial number (an eight digit number). | |
| <tmr> | SOAP sending interval [sec]. | |
| <kind> | Device type identification number (code): | |
| Device | Device | |
| P8511 | 4352 | |
| P8541 | 4353 | |
| P8510 | 4354 | |
| <v> | Actual measured value (a decimal part of number is separated by a dot). Error on channel is signaled by number -11000 or lower. | |
| <u> | Channel unit. In case of error n/a text is shown. | |
| <a> | Alarm state, where no – no alarm, hi – high alarm, lo – low alarm. | |
| <e> | Information about enabled/disabled channel (1 – enabled/0 – disabled) | |
Syslog
The device allows sending text message to selected Syslog server. Events are send using UDP protocol on port 514. Syslog protocol implantation is according to RFC5424 and RFC5426.
Events when Syslog messages are send:
| Text | Event |
| Sensor – fw 4-5-8.x | Reset of the device |
| NTP synchronization error | NTP synchronization error |
| Testing message | Test Syslog message |
| Email login error | E-mail sending error |
| Email auth error | |
| Email some error | |
| Email socket error | |
| Email dns error | |
| SOAP file not found | SOAP message sending error |
| SOAP host error | |
| SOAP sock error | |
| SOAP delivery error | |
| SOAP dns error | |
| High alarm CHx | Upper alarm on channel |
| Low alarm CHx | Lower alarm on channel |
| Clearing CHx | Clearing alarm on channel |
| Error CHx | Measuring error |
SNTP
The device allows time synchronization with NTP (SNTP) server. SNMP protocol version 3.0 is supported (RFC1305). Time synchronization is made every 24 hours. Time
synchronization every hour can be enabled. For time synchronization it is necessary set IP address to the SNTP server. It is also possible set GMT offset for correct time zone. Time is used in graphs and history CSV files. Maximum jitter between two time synchronization is 90sec at 24 hours interval. Software development kit
Device provides on own web pages documentation and examples of usage protocols. SDK files are available at library page (About – Library).
| SDK File | Note |
| snmp.zip | Description of SNMP OID’s and SNMP Traps, MIB tables. |
| modbus.zip | Modbus registers numbers, example of get values from the device by Python script. |
| xml.zip | Description of file values.xml, examples of values.xml file, XSD schematic, Python example. |
| json.zip | Description of values.json file, example of values.json file, Python example. |
| soap.zip | Description of SOAP XML format, example of SOAP messages, XSD schematic, examples of get SOAP values at .net, PHP and Python. |
| syslog.zip | Description of syslog protocol, simple syslog server in Python. |
Troubleshooting
The chapter describes the common problems with thermometer Web Sensor P8510, Web Sensor P8511 and Web Sensor P8541 and methods how to fix these problems. Please read this chapter before you will call technical support.
I forgot the device IP address
IP address is factory set to 192.168.1.213. If you had changed it and forgot new IP address, run the Tensor software and press Find device… In the window are displayed all available devices.
I cannot connect to the device
In search window is only IP and MAC address displayed Other details are marked N/A. This problem occurs if IP address of the device is set to another network.
Select the window Find device in Tensor software and press Change IP address. Follow the software instructions. To assign IP address automatically using DHCP server, set the device IP address to 0.0.0.0.
In search window is only IP and MAC address displayed
Other details are marked N/A. This problem occurs if IP address of the device is set to another network.
Select the window Find device in Tensor software and press Change IP address. Follow the software instructions. To assign IP address automatically using DHCP server, set the device IP address to 0.0.0.0.
Device IP address is not displayed in window Find device
In Tensor software menu press Help! My device was not found! in window Find device.
Follow the software instructions. MAC address of the device can be found on product label.
The device is not found even after manually setting MAC address
This problem occurs especially in cases when the IP address of the device belongs to another network and also Subnet mask or Gateway are incorrect.
In this case is DHCP server in the network necessary. In Sensor software menu press Help!
My device was not found! in window Find device. As new IP address set 0.0.0.0. Follow the software instructions. An alternative is to reset device to factory defaults using factory defaults jumper.
Error or n/a is displayed instead the measured value
Value n/a is shown a shortly after device restart. If the error code or n/a is displayed permanently, check if the probes are connected to device correctly. Make sure that probes are not damaged and are inside operating range. Than perform new search of probes using Sensor software or web interface. List of error codes:
| Error | Code | Description | Note |
| n/a | -11000 | Value is not available. | Code is shown after device restart or when channel is not enabled for measurement. |
| Error 1 | -11001 | No probe was detected on measurement bus. | Make sure that probes are connected properly and cables are not damaged. |
| Error 2 | -11002 | Short circuit on measurement bus was detected. | Please make sure that cables of probes are not damaged. Check if correct probes are connected. Probes Pt100/Pt1000 and Ni100/Ni1000 cannot be used with this device. |
| Error 3 | -11003 | Values cannot be read from probe with ROM code stored in device. | According ROM code on probe label please make sure that is connected proper probe. Please make sure that cables of probes are not damaged. Probes with new ROM code is necessary detect again. |
| Error 4 | -11004 | Communication error (CRC). | Make sure that cables of probe are not damaged and cables are not longer than is allowed. Make sure that cable of probe is not located near the source of EM interferences (power lines, frequency inverters, etc.). |
| Error 5 | -11005 | Error of minimal measured values from probe. | Device measured lower or higher values than is allowed. Please check place of probe installation. Make sure that probe is not damaged. |
| Error 6 | -11006 | Error of maximal measured values from probe. | |
| Error 7 | -11007 | Power supply error at humidity probe or measurement error at temperature probe | Contact technical support. Please send together with issue description the diagnostic file \diag.log. |
| Error 8 | -11008 | Voltage measurement error at humidity probe. | |
| Error 9 | -11009 | Unsupported probe type. | Please contact technical support of local distributor to get firmware update for the device. |
I forgot the password for setup
Please reset device to factory defaults. Procedure is described at following point.
Factory defaults
This procedure restore device to factory settings including network parameters (IP address, Subnet mask, etc.). For factory-defaults follow these steps:
P85xx Web sensors
- disconnect the power supply
- unscrew upper cover of the device case
- close the jumper and connect the power
- keep jumper closed for 10sec then remove jumper
- close the device
P85xx-HW02 Web sensors
- disconnect the power supply
- use something with thin tipped (e.g. paper clip) and press the hole on the left side
- connect the power, wait for 10 sec and release the button
Technical specifications
Information about technical specifications of the device.
Dimensions
Web Sensor P8510:
Web Sensor P8510-HW02:
Web Sensor P8511:
Web Sensor P8541:
Basic parameters
| Supply voltage: | DC voltage from 4.9V to 6.1V, coaxial connector, 5x 2.1mm diameter, center positive pin, min. 250mA |
| Consumption: | ~ 1W depending on the operating mode |
| Protection: | IP30 case with electronic |
| Measuring interval: | 2 sec |
| Accuracy P8510: | ±0.8°C in temperature range from -10°C to +80°C ±2.0°C in temperature range from -10°C to -30°C |
| Accuracy P8511, P8541 | ±0.5°C in temperature range from -10°C to +85°C ±2.0°C in temperature range from -10°C to -50°C ±2.0°C in temperature range from +85°C to +100°C |
| Resolution: | 0.1°C 0.1%RH |
| P8510 temperature measurement range: | -30°C to +80°C |
| P8511 and P8541 temperature measurement range (limited by range of used probe): | -55°C to +100°C |
| Recommended probe for P8511 and P8541: | Temperature probe DSTR162/C max. length 10m Temperature probe DSTGL40/C max. length 10m Temperature probe DSTG8/C max. length 10m Humidity probe DSRH max. length 5m Humidity probe DSRH/C |
| Number of channels: | P8510 one internal temperature sensor (1 measurement channel) P8511 one cinch/RCA connector (2 measurement channels) P8541 four cinch/RCA connectors (4 measurement channels) |
| Communication port: | RJ45 connector, 10Base-T/100Base-TX Ethernet (Auto-Sensing) |
| Recommended Connector Cable: | for industrial use is recommended Cat5e STP cable, in less demanding applications can be replaced by Cat5 cable, maximum cable length 100m |
| Supported protocols: | TCP/IP, UDP/IP, ARP, ICMP, DHCP, TFTP, DNS HTTP, SMTP, SNMPv1, Modbus TCP, SNTP, SOAPv1.1, Syslog |
| SMTP protocol: | SMTP authentication – AUTH LOGIN Encryption (SSL/TLS/STARTTLS) is not supported |
| Supported web browsers: | Internet Explorer 11, Mozilla Firefox 55 and later, Google Chrome 60 and later, Microsoft Edge 25 and later |
| Recommended minimum screen resolution: | 1024 x 768 |
| Memory: | 1000 values for each channel inside non-backup RAM memory 100 values in alarm events log inside non-backup RAM memory 100 values in system events log inside non-backup RAM memory |
| Case material: | ASA |
| Mounting the device: | With two holes at the bottom of the unit |
| Weight: | P8510 ~ 130g, P8511 ~ 125g, P8511 ~ 135g |
| EMC emission: | EN 55022, Class B |
| EMC resistance: | EN 61000-4-2, levels 4/8kV, Class A EN 61000-4-3, intensity of electromagnetic filed 3V/m, Class A EN 61000-4-4, levels 1/0.5kV, Class A EN 61000-4-6, intensity of electromagnetic filed 3V/m, Class A |
Operating terms
| Temperature and humidity range in case with electronic: | -30°C to +80°C, 0 to 100%RH (no condensation) |
| Temperature range of recommended probe DSTR162/C for P8511 and P8541: | -30°C to +80°C, IP67 |
| Temperature range of probe DSTGL40/C for P8511 and P8541: | -30°C to +80°C, IP67 |
| Temperature range of probe DSTG8/C for P8511 and P8541: | -50°C to +100°C, IP67 |
| Temperature and humidity range of probe DSRH for P8511 and P8541: | 0°C to +50°C, 0 to 100%RH |
| Temperature and humidity range of probe DSRH/C for P8511 and P8541: | 0°C to +50°C, 0 to 100%RH |
| P8510 working position: | with sensor cover downwards. When mounting in RACK 19″ with universal holder MP046 (accessories) then sensor cover can be placed horizontally. |
| P8511and P8541 working position: | arbitrary |
End of operation
Disconnect the device and dispose it according to current legislation for dealing with electronic equipment (WEEE directive). Electronic devices must not be disposed of with your household waste and need to be professionally disposed.
Technical support and service
Technical support and service is provided by distributor. Contact is included in warranty certificate.
Preventive maintenance
Make sure the cables and probes are not damaged periodically. Recommended calibration interval is 2 years. Recommended calibration interval for device with humidity probe DSRH and DSRH/C is 1 year.
Optional accessories
This chapter contains list of optional accessories, which can be ordered by extra cost. Manufacturer recommends using only original accessories.
Temperature probe DSTR162/C
Temperature probe -30 to +80°C with a digital sensor DS18B20 and with Cinch connector for Web Sensor P8511 and Web Sensor P8541. Accuracy ±0.5°C from -10 to +80°C, ±2.°C below -10°C. Length of the plastic case 25mm, diameter 10mm. Guaranteed watertight (IP67), sensor connected to PVC cable with lengths 1, 2, 5 or 10m.
Temperature probe DSTGL40/C
Temperature probe -30 to +80°C with a digital sensor DS18B20 and with Cinch connector for Web Sensor P8511 and Web Sensor P8541. Accuracy ±0.5°C from -10 to +80°C, ±2.°C below -10°C. Steal steel case with length 40mm, diameter 5.7mm. Stainless steel type 17240.
Guaranteed watertight (IP67), sensor connected to PVC cable with lengths 1, 2, 5 or 10m.
Temperature probe DSTG8/C
Temperature probe -50 to +100°C with a digital sensor DS18B20 and with Cinch connector for Web Sensor P8511 and Web Sensor P8541. Maximum temperature of the probe is 125°C.
Probe accuracy ±0.5°C from -10 to +85°C, else ±2°C. Steal steel case with length 40mm, diameter 5.7mm. Stainless steel type 17240. Guaranteed watertight (IP67), sensor connected to silicone cable with lengths 1, 2, 5 or 10m.
Humidity probe DSRH
DSRH is a relative humidity probe with Cinch connector for Web Sensor P8511 and Web Sensor P8541. Relative humidity accuracy is ±3.5%RH from 10%-90%RH at 25°C.
Temperature measuring accuracy is ±2°C. Operating temperature range is 0 to +50°C. Probe length 88mm, diameter 18mm, connected to PVC cable with lengths 1, 2 or 5m.
Humidity-temperature probe DSRH/C
DSRH/C is compact probe for measurement of relative humidity and temperature. Relative humidity accuracy is ±3.5%RH from 10%-90%RH at 25°C. Temperature measuring accuracy is ±0.5°C. Operating temperature range is 0 to +50°C. Probe length is 100mm and diameter is 14mm. Probe is designed to be directly mounted to device without cable.
Power supply Adapter A1825
Power supply adapter with CEE 7 plug, 100-240V 50-60Hz/5V DC, 1.2A for Web Sensor P8511 and Web Sensor P8541.
UPS for DC device UPS-DC001
UPS 5-12V DC 2200mAh for up to 5 hours backup for Web Sensor.
Device case holder for RACK 19″ MP046
MP046 is a universal holder for mounting of thermometer Web Sensor P8510 and Web Sensor P8511, P8541 to RACK 19″.
Probes holder for RACK 19″ MP047
Universal holder for easy mounting probes in RACK 19″.
Comet database
Comet database provide a complex solution for data acquisition, alarm monitoring and measured data analyzing from Comet devices. Central database server is based on MS SQL technology. Client-server conception allows to easy and instant access to data. Data are accessible from multiple places by the Database Viewer software. One license of Comet Database includes also one license for Database Viewer.
Documents / Resources
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COMET SYSTEM P8510 Web Sensor Ethernet Remote Thermometer [pdf] User Guide P8510, P8511, P8541, P8510 Web Sensor Ethernet Remote Thermometer, Sensor Ethernet Remote Thermometer, Ethernet Remote Thermometer, Remote Thermometer, Thermometer |