WEINTEK iR-Axxx-VI Series Analog Remote I-O Modules
Product Overview
| a | Terminal | b.c | Expansion Connector |
Specifications
Modules Specification
| Module Name | iR-AI04-VI | iR-AM06-VI | iR-AQ04-VI | |
| Number of Analog Inputs | 4 (±10V/ ±20mA) | 4 (±10V/ ±20mA) | 0 | |
| Number of Analog outputs | 0 | 2 (±10V/ ±20mA) | 4 (±10V/ ±20mA) | |
| Current Consumption | 70mA@5VDC | 70mA@5VDC | 65mA@5VDC | |
| Analog Power Supply | 24 VDC（20.4 VDC~28.8 VDC）（-15%~+20%） | |||
|
Specification |
PCB Coating | Yes | ||
| Enclosure | Plastic | |||
| Dimensions WxHxD | 27 x 109 x 81 mm | |||
| Weight | Approx. 0.12 kg | |||
| Mount | 35mm DIN rail mounting | |||
|
Environment |
Protection Structure | IP20 | ||
| Storage Temperature | -20° ~ 70°C (-4° ~ 158°F) | |||
| Operating Temperature | 0° ~ 55°C (32° ~ 131°F) | |||
| Relative Humidity | 10% ~ 90% (non-condensing) | |||
| Altitude (Air Pressure) | Below 3,000 meters (70.1kPa) | |||
| Vibration Endurance | 10 to 25Hz (X, Y, Z direction 2G 30 minutes) | |||
| Connection | Cross-section | AWG 24-16 | AWG 28-16 | AWG 24-16 |
| Certification | CE | CE marked | ||
| UL | cULus Listed | |||
Analog Input Specification
| Input Range | -10V~10V 、 -20mA~20mA | ||||
| Conversion Time | 2ms/Channel | ||||
| Isolation | 500 VDC：(Analog / Digital) | ||||
| Data Format | -10~10V | -5V~5V | 1~5V | -20~20mA | 4~20mA |
| ±32000 | ±32000 | 0~32000 | ±32000 | 0~32000 | |
| Resolution | 0.312mV | 0.156mV | 0.156mV | 0.625uA | 0.625uA |
| 16 bit | 16 bit | 15 bit | 16 bit | 15 bit | |
| Input Impedance | 1MΩ | 250 Ω | |||
|
Diagnose |
Supply Voltage
Wire break (1~5V & 4~20mA) Overflow/underflow |
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| Accuracy | ± 0.2 % Full Scale At 25°C
± 0.3 % Full Scale At 0° ~ 55°C |
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Analog Output Specification
| Output Range | -10V~10V、-20mA~20mA | ||||
| Conversion Time | 1.6ms/4 channels 1.3ms/3 channels 1ms/2 channels
700us/1 channel |
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| Isolation | 500 VDC：(Analog / Digital) | ||||
| Data Format | -10~10V | -5V~5V | 1~5V | -20~20mA | 4~20mA |
| ±32000 | ±32000 | 0~32000 | ±32000 | 0~32000 | |
| Resolution | 5mV | 5mV | 5mV | 10uA | 10uA |
| 12bit | 11bit | 10bit | 12bit | 11bit | |
| Output Impedance | ≧1kΩ | ≦500Ω | |||
| Accuracy | ± 0.2 % Full Scale At 25°C
± 0.3 % Full Scale At 0° ~ 55°C |
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LED Indicators
L.V LED
| State | Description |
| OFF | 24V power normal |
| Blinking | Detect 24V power |
| ON | 24V power error |
RUN LED
| State | Description |
| OFF | No Power |
| Blinking | iBus initiating |
| ON | iBus working |
ERR LED
| State | Description |
| OFF | No error |
| Blinking | Analog channel error |
| ON | Unable to perform conversion
(Analog hardware error) |
STA LED
| State | Description |
| OFF | No error |
| Blinking | Conversion in progress |
Error Handling
| State | Description | Error Handling |
| L.V LED ON | Analog power (24v) error | Check Analog power (24v) |
| L.V LED Blinking | Detect Analog power (24v) | Check Analog power (24v) |
| Run LED is OFF | No Power | Check whether the coupler is properly powered, or if module malfunction occurs. And send the
malfunction unit for repair. |
| ERR LED ON | Unable to perform conversion | Hardware error, send the unit for
repair. |
| RUN LED Blinking | iBus initiating | Check whether the coupler is
functioning, if not, sent the unit for repair. |
| ERR LED Blinking | Channel conversion error | Check the error code to find out whether the Analog value exceeds allowable range. |
Wiring
2-, 3- and 4-wire Analog Sensor connection at inputs:
2 wire：
Current transmitter
3 wire：
Voltage transmitter
Current Source transmitter
Current Sink transmitter
4 wire：
Voltage transmitter
Current transmitter
iR Analog Module Block Diagram
Analog I/O Features
Feature List
| No. | Feature | Descriptions |
| 1 | User-Defined Conversion Rate | |
| 2 | Analog Output – Soft Start | |
| 4 | Analog Input – Diagnose | Disconnection Detection (1-5v / 4-20mA) |
| 5 | Analog Input – Fast Conversion Mode | |
| 6 | Analog Input – Digital Filter | |
User-Defined Conversion Rate
iR-Axxx-VI Series models support built-in digital-to-analog conversion with
user-defined range. Available ranges are: ±10V, ±5v, 1-5v, ±20m, 4-20mA. Example: When the defined mode is ±10V, the default scale range is ±32000. Converting analog value 10v will get the upper limit of the range, which is 32000. Converting analog value -10v will get the lower limit of the range, which is -32000.
The upper and lower limit of the scale range can be configured for each mode. When switching from one mode to another, the upper and lower limit will return to default; therefore, when using this feature, please set the mode before configuring the range. By default the upper and lower limit of the range for each mode is as below:
| Mode | Minimum | Maximum |
| -10~10V | -32000 | 32000 |
| -5V~5V | -32000 | 32000 |
| 1~5V | 0 | 32000 |
| -20~20mA | -32000 | 32000 |
| 4~20mA | 0 | 32000 |
Analog Output – Soft Start
Generally, when changing analog output value, the voltage or current output will change immediately. To gradually increase or decrease output for reducing potential system impact, an [Output Update Time] parameter can be configured. Adjusting Output Update Time can get a slew rate where the change of voltage or current from minimum to maximum value per unit of time is defined, as illustrated in the following figures. 
| Parameter | Description | Default |
| Output Update Time | The time unit is 10ms. By default this parameter is set to 0 (disabled). The maximum allowable setting is 3200 (32 seconds) | 0 |
Analog Input – Diagnose
A channel alarm will be generated when input exceeds allowable range. In 1-5V /
4-20mA mode, disconnection can be detected when voltage is 0v or current is 0mA.
Analog Input – Fast Conversion Mode
The conversion time per channel is 2ms. The total required conversion time is calculated by multiplying 2ms by the number of channels, for example, 4 channels will take 8ms for conversion. In fast conversion mode, where only one channel is used, the conversion time can be reduced to 500us.
Fast Conversion Mode can be enabled by setting the corresponding register to 0.5ms. Under this mode, only one channel can be used. If channel 0 is not closed, the rest of the channels will not be able to perform conversion. If channel 0 is closed where channel 1 is opened, only channel 1 can perform conversion while the rest cannot.
Analog Input – Digital Filter
The built-in filter enhances signal precision to achieve better control. Setting a slower conversion rate will get a better signal quality. By default the conversion time is 2ms. Setting 60ms can effectively filter out noises in a 50/60Hz environment.
The Filter Frame Size can stabilize the signal by averaging sampled values, in order to achieve better control.
Registers
| Address | Description | Default | Read/Write | |
| 0 |
Analog Output |
Channel 0 Output Mode | 1 | Read/Write |
| 1 | Channel 1 Output Mode | 1 | Read/Write | |
| 2 | Channel 2 Output Mode | 1 | Read/Write | |
| 3 | Channel 3 Output Mode | 1 | Read/Write | |
| 4 | Channel 0 Scale Range Upper Limit | 32000 | Read/Write | |
| 5 | Channel 1 Scale Range Upper Limit | 32000 | Read/Write | |
| 6 | Channel 2 Scale Range Upper Limit | 32000 | Read/Write | |
| 7 | Channel 3 Scale Range Upper Limit | 32000 | Read/Write | |
| 8 | Channel 0 Scale Range Lower Limit | -32000 | Read/Write | |
| 9 | Channel 1 Scale Range Lower Limit | -32000 | Read/Write | |
| 10 | Channel 2 Scale Range Lower Limit | -32000 | Read/Write | |
| 11 | Channel 3 Scale Range Lower Limit | -32000 | Read/Write | |
| 12 | Channel 0 Update Time | 0 | Read/Write | |
| 13 | Channel 1 Update Time | 0 | Read/Write | |
| 14 | Channel 2 Update Time | 0 | Read/Write | |
| 15 | Channel 3 Update Time | 0 | Read/Write | |
| 16 | Error Code | 0 | Read | |
| 17 | Command | 0 | Read/Write | |
| 18 | Channel Detection | FFh | Read/Write | |
| 19 |
Analog Input |
Conversion Time | 0 | Read/Write |
| 20 | Channel 0 Input Mode | 1 | Read/Write | |
| 21 | Channel 1 Input Mode | 1 | Read/Write | |
| 22 | Channel 2 Input t Mode | 1 | Read/Write | |
| 23 | Channel 3 Input Mode | 1 | Read/Write | |
| 24 | Channel 0 Scale Range Upper Limit | 32000 | Read/Write | |
| 25 | Channel 1 Scale Range Upper Limit | 32000 | Read/Write | |
| 26 | Channel 2 Scale Range Upper Limit | 32000 | Read/Write | |
| 27 | Channel 3 Scale Range Upper Limit | 32000 | Read/Write | |
| 28 | Channel 0 Scale Range Lower Limit | -32000 | Read/Write | |
| 29 | Channel 1 Scale Range Lower Limit | -32000 | Read/Write | |
| 30 | Channel 2 Scale Range Lower Limit | -32000 | Read/Write | |
| 31 | Channel 3 Scale Range Lower Limit | -32000 | Read/Write | |
| 32 | Channel 0 Filter Frame Size | 5 | Read/Write | |
| 33 | Channel 1 Filter Frame Size | 5 | Read/Write | |
| 34 | Channel 2 Filter Frame Size | 5 | Read/Write | |
| 35 | Channel 3 Filter Frame Size | 5 | Read/Write | |
| 36 | Channel 0 Maximum Value | 0 | Read | |
| 37 | Channel 1 Maximum Value | 0 | Read | |
| 38 | Channel 2 Maximum Value | 0 | Read | |
| 39 | Channel 3 Maximum Value | 0 | Read | |
| 40 | Channel 0 Minimum Value | 0 | Read | |
| 41 | Channel 1 Minimum Value | 0 | Read | |
| 42 | Channel 2 Minimum Value | 0 | Read | |
| 43 | Channel 3 Minimum Value | 0 | Read | |
Analog Output Mode
| Value | Mode | Resolution | |
| 0 | Close Channel | N/A | |
| 1 | -10V-10V(Default) | 12bit | 5mV |
| 2 | -5V-5V | 11bit | 5mV |
| 3 | 1-5v | 11bit | 5mV |
| 4 | ±20mA | 12bit | 0.01m
A |
| 5 | 4-20mA | 11bit | 0.01m
A |
Analog Input Mode
| Value | Mode | Conversion Time | Resolution | |
| 0 | Close Channel | N/A | N/A | |
| 1 | -10V-10V(Default) | 2ms | 16bit | 312uV |
| 2 | -5V-5V | 2ms | 16bit | 156.25uV |
| 3 | 1-5v | 2ms | 16bit | 156.25uV |
| 4 | ±20mA | 2ms | 16bit | 0.625uA |
| 5 | 4-20mA | 2ms | 16bit | 0.625uA |
Analog Input Conversion Time
| Value | Conversion Time |
| 0 | 2ms |
| 1 (Default) | 2ms |
| 2 | 5ms |
| 3 | 10ms |
| 4 | 15ms |
| 5 | 25ms |
| 6 | 60ms |
| 7 | 0.5ms (Fast Conversion Mode) |
When changing from one mode to another, the closest conversion time to 2ms x number of channels will be set. Users can adjust the conversion time to get better signal precision, for example, setting 60ms in 50/60Hz environment.
Scale Range Setting
| Setting | Description | Default |
| Upper Limit | Allowable range: -32768~32767 | 32000 |
| Lower Limit | Allowable range: -32768~32767 | -32000 |
Please note that setting the upper limit and lower limit to the same value will make the system use the default value.
Analog Output Update Time
| Setting | Description | Default |
| Analog Output Update Time | Allowable range: 0~3200 Time unit: 10ms
By default this setting is disabled. |
0 |
Analog Input – Filter Frame Size
| Setting | Description | Default |
| Filter Frame Size | Allowable range: 1~20
Setting value 1 will disable this setting. |
5 |
Analog Input maximum / minimum value
This setting keeps on recording the maximum and minimum digital value. The record can be cleared by giving a command (restart recording).
| Setting | Description | Default |
| Input Max./Min. Value | Allowable range: -32768~32767 | 0 |
Error Code
| Bit | Description |
| 0 | Power error |
| 1 | Hardware error |
| 2 | Device isn’t calibrated |
| 3 | Reserved |
| 4 | Conversion cannot be performed. |
| 5-7 | Reserved |
| 8 | Input Channel 0 error |
| 9 | Input Channel 1 error |
| 10 | Input Channel 2 error |
| 11 | Input Channel 3 error |
Command
| Value | Description |
| 0x0001 | Restore factory default |
| 0x0002 | Reset the max./min. value of analog input channel 0 |
| 0x0003 | Reset the max./min. value of analog input channel 1 |
| 0x0004 | Reset the max./min. value of analog input channel 2 |
| 0x0005 | Reset the max./min. value of analog input channel 3 |
| 0x0006 | Reset the max./min. value of analog input channel 0-3 |
Channel Detection
| Bit | Description | Value | |
| 1 | 0 | ||
| 0 | Analog Input Channel 0 Detection | Enable | Disable |
| 1 | Analog Input Channel 1 Detection | Enable | Disable |
| 2 | Analog Input Channel 2 Detection | Enable | Disable |
| 3 | Analog Input Channel 3 Detection | Enable | Disable |
| 4-15 | Reserved | ||
iR-ETN Coupler Address Mapping
| Module No. | Module Registers | iR-ETN Modbus Address |
| 1st | 500 | 20000-20499 |
| 2nd | 500 | 20500-20999 |
| 3rd | 500 | 21000-21499 |
| 4th | 500 | 21500-21999 |
| …… | …… | …… |
| 16th | 500 | 27500-27999 |
Example:
| Module No. | Module Name |
| 0 | iR-ETN |
| 1 | iR-AQ04-VI |
| 2 | iR-AI04-VI |
| 3 | iR-AI04-TR |
| 4 | iR-AM06-VI |
| Module | Module Register | iR-ETN Modbus Address |
| iR-AQ04-VI | 0# Channel 0 Output Mode | 20000 |
| 1# Channel 1 Output Mode | 20001 | |
| 2# Channel 2 Output Mode | 20002 | |
| 3# Channel 3 Output Mode | 20003 | |
| ……… | …….. | |
| 16# Error Code | 20016 | |
| ……… | …….. | |
| iR-AI04-VI | 20# Channel 0 Input Mode | 20520 |
| 21# Channel 1 Input Mode | 20521 | |
| 22# Channel 2 Input Mode | 20522 | |
| 23# Channel 3 Input Mode | 20523 | |
| ……… | …….. | |
| iR-AI04-TR | 0# Channel 0 Input Mode | 21000 |
| 1# Channel 1 Input Mode | 21001 | |
| 2# Channel 2 Input Mode | 21002 |
| 3# Channel 3 Input Mode | 21003 | |
| ……… | …….. | |
| iR-AM06-VI | 0# Channel 0 Output Mode | 21500 |
| 1# Channel 1 Output Mode | 21501 | |
| ……… | …….. | |
| 20# Channel 0 Input Mode | 21520 | |
| 21# Channel 1 Input Mode | 21521 | |
| 22# Channel 2 Input Mode | 21522 | |
| 23# Channel 3 Input Mode | 21523 | |
| ……… | …….. |
| Module | Module Analog Channel | iR-ETN Modbus Address | |
| iR-AI04-VI | Analog Input | Channel 0 Digital Value | 0 |
| Channel 1 Digital Value | 1 | ||
| Channel 2 Digital Value | 2 | ||
| Channel 3 Digital Value | 3 | ||
| iR-AI04-TR | Channel 0 Digital Value | 4 | |
| Channel 1 Digital Value | 5 | ||
| Channel 2 Digital Value | 6 | ||
| Channel 3 Digital Value | 7 | ||
| iR-AM06-VI | Channel 0 Digital Value | 8 | |
| Channel 1 Digital Value | 9 | ||
| Channel 2 Digital Value | 10 | ||
| Channel 3 Digital Value | 11 | ||
| iR-AQ04-VI | Analog Output | Channel 0 Digital Value | 256 |
| Channel 1 Digital Value | 257 | ||
| Channel 2 Digital Value | 258 | ||
| Channel 3 Digital Value | 259 | ||
| iR-AM06-VI | Channel 0 Digital Value | 260 | |
| Channel 1 Digital Value | 261 | ||
* Modbus Read Function Codes: 03h, 04h, 17h; Write Function Code: 06h, 10h, 17h
* This Modbus address starts from address 0 for CODESYS and Weintek_RemoteIO configuration. If you use common Modbus TCP\IP, the Modbus address starts from address 1 so that all parameter addresses should be increased by 1.
iR-COP Coupler Address Mapping
|
Module No. |
Module Registers |
Object Dictionary | |
| Index | Sub-Index | ||
| 1st | 127 | 3000h | 01h-80h |
| 2nd | 127 | 3001h | 01h-80h |
| 3rd | 127 | 3002h | 01h-80h |
| 4th | 127 | 3003h | 01h-80h |
| …… | …… | …… | 01h-80h |
| 16th | 127 | 300Fh | 01h-80h |
Example: 
| Module No. | Module Name |
| 0 | iR-COP |
| 1 | iR-AQ04-VI |
| 2 | iR-AI04-VI |
| 3 | iR-AI04-TR |
| 4 | iR-AM06-VI |
| Module | Module Register | Index | Sub-Index |
| iR-AQ04-VI | 0# Channel 0 Output Mode | 3000h | 01h |
| 1# Channel 1 Output Mode | 3000h | 02h | |
| 2# Channel 2 Output Mode | 3000h | 03h | |
| 3# Channel 3 Output Mode | 3000h | 04h | |
| ……… | …….. | …….. | |
| 16# Error Code | 3000h | 10h | |
| ……… | …….. | …….. | |
| iR-AI04-VI | 20# Channel 0 Input Mode | 3001h | 15h |
| 21# Channel 1 Input Mode | 3001h | 16h | |
| 22# Channel 2 Input Mode | 3001h | 17h | |
| 23# Channel 3 Input Mode | 3001h | 18h | |
| ……… | …….. | …….. |
| iR-AI04-TR | 0# Channel 0 Input Mode | 3002h | 01h |
| 1# Channel 1 Input Mode | 3002h | 02h | |
| 2# Channel 2 Input Mode | 3002h | 03h | |
| 3# Channel 3 Input Mode | 3002h | 04h | |
| ……… | …….. | …….. | |
| iR-AM06-VI | 0# Channel 0 Output Mode | 3003h | 01h |
| 1# Channel 1 Output Mode | 3003h | 02h | |
| ……… | …….. | ……… | |
| 20# Channel 0 Input Mode | 3003h | 15h | |
| 21# Channel 1 Input Mode | 3003h | 16h | |
| 22# Channel 2 Input Mode | 3003h | 17h | |
| 23# Channel 3 Input Mode | 3003h | 18h | |
| ……… | …….. | …….. |
Analog Channel Calibration for Value Correction
Analog input channels may experience decreased measurement accuracy caused by factors such as variations in connected loads, system aging, and component wear over time. The following example demonstrates a self-adjustment method.
Voltage Mode Calibration
Step 1. Channel parameter configuration:
Set Input Mode to 1-5V mode.
Set Input Scale Range Upper Limit to 32000.
Set Input Scale Range Lower Limit to 0.
Step 2. Record the lowest voltage value:
Set the standard voltage source to output 1V and record the channel value.
Step 3. Record the highest voltage value:
Set the standard voltage source to output 5V and record the channel value.
Step 4. The recorded values are as follows:
| Voltage | 1V | 5V |
| Standard Value | 0 | 32000 |
| Actual Value | -55 | 31886 |
| Error Value (Actual Value –
Standard Value) |
-55 | -114 |
| Lower/ Upper Limit (Standard Value –
Error Value) |
0-(-55)= 55 | 32000-(-114)=32114 |
Step 5. Calculate the Analog Value Limits = Standard Value – Error Value
Lower Limit = 55
Upper Limit = 32114
Step 6. Write values to the module:
*At this point, the input value corresponding to a 1V voltage source is 0, and the input value corresponding to a 5V voltage source is 32000.
Current Mode Calibration
Step 1. Channel parameter configuration:
Set Input Mode to 4-20mA mode.
Set Input Scale Range Upper Limit to 32000.
Set Input Scale Range Lower Limit to 0.
Step 2. Record the lowest current value:
Set the standard current source to output 4mA and record the channel value.
Step 3. Record the highest current value:
Set the standard current source to output 20mA and record the channel value.
Step 4. The recorded values are as follows:
| Current | 4mA | 20mA |
| Standard Value | 0 | 32000 |
| Actual Value | -55 | 31886 |
| Error Value (Actual Value –
Standard Value) |
-55 | -114 |
| Lower/ Upper Limit
(Standard Value – |
0-(-55)= 55 | 32000-(-114)=32114 |
| Error Value) |
Step 5. Calculate the Analog Value Limits = Standard Value – Error Value
Lower Scale Range Limit = 55
Upper Scale Range Limit = 32114
Step 6. Write values to the module:
Frequently Asked Questions
- Q: What should I do if the ERR LED is blinking?
A: The ERR LED blinking indicates an analog channel error. Check the analog power supply and ensure proper connections. If the issue persists, refer to the Error Handling section in the manual. - Q: How to interpret the LED indicators?
A: The user manual provides detailed information on the LED indicators and their meanings. Refer to the LED Indicators section for more details.
Documents / Resources
 |
WEINTEK iR-Axxx-VI Series Analog Remote I-O Modules [pdf] User Manual iR-AQ04-VI, iR-AM06-VI, iR-AI04-VI, iR-Axxx-VI Series Analog Remote I-O Modules, iR-Axxx-VI Series, Analog Remote I-O Modules, Remote I-O Modules, I-O Modules |