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User Manual for aspar models including: Mini Modbus 1AI, Expansion Module, Mini Modbus 1AI Expansion Module, Module
Ampero MODBUS I/O Modules MOD-1AI - All-DAQ
9 apr 2023 — User Manual. Manufactured for. Page 2. RS485 MODBUS Module 1AI. User Manual ... User Manual. Version 1.5. 8 / 12. MUX. ADC. VIN.12 pagine
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DocumentDocumentMini Modbus 1AI Expansion Module 1 analog input, 1 digital output Version 1.5 User Manual Manufactured for RS485 MODBUS Module 8AI User Manual Thank you for choosing our product. This manual will help you with proper support and proper operation of the device. The information contained in this manual have been prepared with utmost care by our professionals and serve as a description of the product without incurring any liability for the purposes of commercial law. This information does not release you from the obligation of own judgement and verification. We reserve the right to change product specifications without notice. Please read the instructions carefully and follow the recommendations contained therein. WARNING! Failure to follow instructions can result in equipment damage or impede the use of the hardware or software. Expansion Module 1 analog input, 1 digital output User Manual Version 1.5 2 / 12 RS485 MODBUS Module 8AI User Manual 1. Safety rules · Before first use, refer to this manual · Before first use, make sure that all cables are connected properly · Please ensure proper working conditions, according to the device specifications (eg: supply voltage, temperature, maximum power consumption) · Before making any modifications to wiring connections, turn off the power supply 2. Module Features 2.1. Purpose and description of the module 1AI module allows voltage or current measurement and has one digital putput. Values are read via RS485 (Modbus), so we can easily integrate the module with popular PLCs, HMI or PC equipped with the appropriate adapter. The device has 1 input to voltage measurement and 1 input for current measurement (both inputs can be used in this same time). In addition, the module is equipped with 1 configurable digital output (PNP or NPN type). This module is connected to the RS485 bus with twisted-pair wire. Communication is via MODBUS RTU or MODBUS ASCII. The use of 32-bit ARM core processor provides fast processing and quick communication. The baud rate is configurable from 2400 to 115200. The module is designed for mounting on a DIN rail in accordance with DIN EN 5002. The module is equipped with a set of LEDs used to indicate the status of inputs and outputs useful for diagnostic purposes and helping to find errors. Module configuration is done via USB by using a dedicated computer program. You can also change the parameters using the MODBUS protocol. Expansion Module 1 analog input, 1 digital output User Manual Version 1.5 3 / 12 2.2. Technical Specifications RS485 MODBUS Module 8AI User Manual Power Supply Inputs Digital outputs Temperature Connectors Size Interface Voltage Maximum Current No of inputs Voltage input Current input Measurement resolution ADC processing time Voltage measurement error Current measurement error Maximum current and voltage Work Storage Power Supply Communication Inputs & Outputs Configuration Height Length Width RS485 10-38VDC; 20-28VAC 70 mA @ 12V / 38 mA @ 24V 2 -10V to 10V -20mA to 20mA 16 bits 70ms / channel Max ±1.7% Max ±0.1% 250mA / 50V -10 °C - +50°C -40 °C - +85°C 2 pin 3 pin 2 x 3 pin Mini USB 90 mm 56 mm 17 mm Up to 128 devices Expansion Module 1 analog input, 1 digital output User Manual Version 1.5 4 / 12 RS485 MODBUS Module 8AI User Manual 2.3. Dimensions of the product Look and dimensions of the module are shown below. The module is mounted directly to the rail in the DIN industry standard. 56 50 34 17 90 3. Communication configuration 3.1. Grounding and shielding In most cases, IO modules will be installed in an enclosure along with other devices which generate electromagnetic radiation. Examples of these devices are relays and contactors, transformers, motor controllers etc. This electromagnetic radiation can induce electrical noise into both power and signal lines, as well as direct radiation into the module causing negative effects on the system. Appropriate grounding, shielding and other protective steps should be taken at the installation stage to prevent these effects. These protective steps include control cabinet grounding, module grounding, cable shield grounding, protective elements for electromagnetic switching devices, correct wiring as well as consideration of cable types and their cross sections. 3.2. Network Termination Transmission line effects often present a problem on data communication networks. These problems include reflections and signal attenuation. To eliminate the presence of reflections from the end of the cable, the cable must be terminated at both ends with a resistor across the line equal to its characteristic impedance. Both ends must be terminated since the direction of propagation is bidirectional. In the case of an RS485 twisted pair cable this termination is typically 120 . Expansion Module 1 analog input, 1 digital output User Manual Version 1.5 5 / 12 RS485 MODBUS Module 8AI User Manual 3.3. Types of Modbus Registers There are 4 types of variables available in the module Type 1 2 3 4 Beginning address 00001 10001 30001 40001 Variable Digital Outputs Digital Inputs Input Registers Output Registers Access Modbus Command Bit Read & Write 1, 5, 15 Bit Read 2 Registered Read 3 Registered Read & Write 4, 6, 16 3.4. Communication settings The data stored in the modules memory are in 16-bit registers. Access to registers is via MODBUS RTU or MODBUS ASCII. 3.4.1. Default settings Parameter name Address Baud rate Parity Data bits Stop bits Reply Delay [ms] Modbus Type Value 1 19200 No 8 1 0 RTU Expansion Module 1 analog input, 1 digital output User Manual Version 1.5 6 / 12 3.4.2. Configuration registers Modbus Dec Hex Address 40002 1 0x01 40003 2 0x02 40005 4 0x04 40004 40004 40006 40007 4. Indicators 3 0x03 3 0x03 5 0x05 6 0x06 RS485 MODBUS Module 8AI User Manual Name Address Baud rate Parity Stop Bits LSB Data Bits MSB Response delay Modbus Mode Values From 0 to 255 0 2400 1 4800 2 9600 3 19200 4 38400 5 57600 6 115200 other value * 10 0 none 1 odd 2 even 3 always 1 4 always 0 1 one stop bit 2 two stop bits 7 7 data bits 8 8 data bits Time in ms 0 RTU 1 ASCII Indicator ON TX AIV , AII DO Description LED indicates that the module is correctly powered. The LED lights up when the unit received the correct packet and sends the answer. LED indicates that the signal to input is connected and is different from 0 LED indicates that the output is on. Expansion Module 1 analog input, 1 digital output User Manual Version 1.5 7 / 12 RS485 MODBUS Module 8AI User Manual 5. Block diagram 100 V+ OUT VIN IIN COM MUX ADC C RS485 VCC GND 485+ 485GND 6. Module Connection Expansion Module 1 analog input, 1 digital output User Manual Version 1.5 8 / 12 RS485 MODBUS Module 8AI User Manual 7. Modules Registers 7.1. Registered access Modbus Dec Hex Register Name Access Description 30001 0 0x00 Version/Type Read Version and Type of the device 30002 1 0x01 Address Read Module Address 40003 2 0x02 Baud rate Read & Write RS485 baud rate 40004 3 0x03 Stop Bits & Data Bits Read & Write No of Stop bits & Data Bits (see 3.4.2) 40005 4 0x04 Parity Read & Write Parity bit 40006 5 0x05 Response Delay Read & Write Response delay in ms 40007 6 0x06 Modbus Mode Read & Write Modbus Mode (ASCII or RTU) 40010 9 0x09 Filter Read & Write Measurement filtering, value from 1 to 10 40033 40034 32 0x20 Received packets LSB 33 0x21 Received packets MSB Read & Write Read & Write No of received packets 40035 40036 34 0x22 Incorrect packets LSB 35 0x23 Incorrect packets MSB Read & Write Read & Write No of received packets with error 40037 40038 36 0x24 Sent packets LSB 37 0x25 Sent packets MSB Read & Write Read & Write No of sent packets 30051 50 0x32 Inputs Read Connected inputs Bit in high state signal is connected 40052 51 0x33 Outputs Read & Write Alarms state bit no. 3 digital output 30053 52 0x34 Voltage Read Voltage in V 30054 53 0x35 Current Read Current in A or 30055 54 0x36 Alarm max voltage Read & Write Maximum value of voltage excess which causes set bit no 1 in the register 40052 30056 55 0x37 Alarm min voltage Read & Write Minimum value of voltage. If voltage drops below this voltage bit no 1 in the register 40052 is set. 30057 56 0x38 Alarm max current Read & Write Maximum value of current excess which causes set bit no 1 in the register 40052 30058 57 0x39 Alarm min current Read & Write Minimum value of current. If current drops below this voltage bit no 1 in the register 40052 is set. 30059 30060 58 0x3A Voltage alarm configuration Read & Write 59 0x3B Current alarm configuration Read & Write Alarms configuration 0 alarms state depends on actual values 1 alarms state need to clear by master 30061 60 0x3C Voltage input configuration Read & Write 0 OFF 1 0 .. 10V 2 -10 .. 10V 3 0 .. 1V 4 -1 .. 1V 40062 61 0x3D Current input configuration Read & Write 0 OFF 1 0 .. 20mA (in A) 2 4 .. 20mA (in ) 3 -20mA .. 20mA (in A) 40063 62 0x3E Digital output configuration Read & Write Digital output configuration 0 output controlled by master 1 output state depends voltage 2 output state depends current Expansion Module 1 analog input, 1 digital output User Manual Version 1.5 9 / 12 Modbus Dec Hex Register Name 40064 40065 63 0x3F Alarm value 64 0x40 Alarm hysteresis RS485 MODBUS Module 8AI User Manual Access Description +256 output set if value is greater than alarm value (40065 register) (,,cooling") +512 output set if value is below than alarm value (40065 register) (,,warming") Read & Write Alarm value Read & Write Hysteresis for alarm 7.2. Bit access Modbus Address 801 802 817 818 819 Dec Address 800 801 816 817 818 Hex Address Register name 0x320 Voltage input 0x321 Current input 0x330 Voltage alarm 0x331 Current alarm 0x332 Digital output Access Read Read Read & Write Read & Write Read & Write Description Voltage input state Current input state Voltage alarm state Current alarm state Digital output state Expansion Module 1 analog input, 1 digital output User Manual Version 1.5 10 / 12 RS485 MODBUS Module 8AI User Manual 8. Configuration software Modbus Configurator is software that is designed to set the module registers responsible for communication over Modbus network as well as to read and write the current value of other registers of the module. This program can be a convenient way to test the system as well as to observe real-time changes in the registers. Communication with the module is done via the USB cable. The module does not require any drivers. Configurator is a universal program, whereby it is possible to configure all available modules. Expansion Module 1 analog input, 1 digital output User Manual Version 1.5 11 / 12 RS485 MODBUS Module 8AI User Manual Table of Content 1. Safety rules.......................................................................................................................................3 2. Module Features...............................................................................................................................3 2.1. Purpose and description of the module.....................................................................................3 2.2. Technical Specifications...........................................................................................................4 2.3. Dimensions of the product........................................................................................................5 3. Communication configuration..........................................................................................................5 3.1. Grounding and shielding...........................................................................................................5 3.2. Network Termination................................................................................................................5 3.3. Types of Modbus Registers.......................................................................................................6 3.4. Communication settings...........................................................................................................6 3.4.1. Default settings.................................................................................................................6 3.4.2. Configuration registers......................................................................................................7 4. Indicators..........................................................................................................................................7 5. Block diagram..................................................................................................................................8 6. Module Connection..........................................................................................................................8 7. Modules Registers............................................................................................................................9 7.1. Registered access......................................................................................................................9 7.2. Bit access................................................................................................................................10 8. Configuration software...................................................................................................................11 Expansion Module 1 analog input, 1 digital output User Manual Manufactured for: Aspar s.c. ul. Oliwska 112 80-209 Chwaszczyno Poland ampero@ampero.eu www.ampero.eu tel. +48 58 351 39 89; +48 58 732 71 73 Version 1.5 12 / 12