Haiwell A04AI Series Card-type PLC Analog Module
Product Information
The Haiwell A Series Card-type PLC – Analog Module is a device that provides analog input and output capabilities to the host PLC.
The product has five different models – A04AI, A04AO, A04XA, A08AI, and A08A0. The product dimensions are 25*95*65 mm, and it requires a DC power supply of 24VDC -15%~+20%. The analog input (AI) specification includes voltage input and current input with an input range of 0V~+10V, 0V~+5V, 1V~+5V, 0~20mA, and 4~20mA. The
maximum allowed input is 13V for voltage input and 30mA for current input. The range of digital value is 0-32000 for all input types. The response time is 2.0ms/ch, and the resolution is 16 bits.
Product Usage Instructions
To use the Haiwell A Series Card-type PLC – Analog Module, follow the below instructions:
- Connect the module to the host PLC parallel port.
- Ensure that the power supply voltage is within the required range (24VDC -15%~+20%).
- Connect the analog input devices to the module’s analog input terminals.
- Configure the module’s analog input settings based on the input device specifications.
- Monitor the module’s communication status using the LINK indicator.
- If the LINK indicator shows abnormal status, refer to the user manual for troubleshooting steps.Refer to the user manual for detailed instructions on configuring and using the Haiwell A Series Card-type PLC – Analog Module.
Analog Module User Manual & Application Cases
Product Model List and Dimension
| Model | Power (24V) | Dimension |
| A04AI | DC24V~0.1A MAX |
25*95*65 mm |
| A04AO | DC24V~0.1A MAX | |
| A04XA | DC24V~0.1A MAX | |
| A08AI | DC24V~0.1A MAX | |
| A08A0 | DC24V~0.15A MAX |
| 1. Indicator | 8. Module extension port |
| 2. PWR power indicator, LINK module communication indicator | 9. 35mm DIN guide rail track |
| 3. Terminal definition | |
| 4. Removable terminal | |
| 5. Guide rail buckle | |
| 6. Module lock buckle | |
| 7. Module positioning hole |
Indicator Description
- PWR: power indicator. green, constant light -Power normal; Not light – Power abnormal.
- LINK: multi-status indicator . three colors (Red. Yellow. Green), as follow:
Reference processing mode Module bus state LINK indicator state Normal
No communication of module No light MPU has identified the module but no communication Constant light in green Serial or parallel port in communication Green jitter: indicator on 30ms and off 30ms Parallel power supply not enough, must connect to external power supply Without serial or parallel port in communication Yellow flicker: indicator on 0.5s and off 0.5s With serial or parallel port in communication Yellow is darkened and jitter alternately: indicator off 0.5s and jitter 0.5s Firmware upgrade failed, reupgrade the module firmware Without serial or parallel port in communication Red flicker: indicator on 0.5s and off 0.5s With serial or parallel port in communication Red is darkened and jitter alternately: indicator off 0.5s and jitter 0.5s Hardware failure and maintenance Without serial or parallel port in communication Constant light in red
Power Supply Specification
| Item | DC | Power | Supply |
| Power supply voltage | 24VDC -15%~+20% | ||
| Power supply frequency | —— | ||
| Instantaneous surge | MAX 20A 1.5ms @24VDC |
| Power loss time | 10ms or less |
| Fuse | 0.3A, 250V |
| 24V Output voltage (for input and expansion) | None |
| Isolation Type | No Electrical isolation |
| Power Protection | DC input power polarity reverse, over voltage protection |
Environmental Specifications for Product
| Item | Environment Specification |
| Temperature/Humidity | Operating temperature:0~+55℃ Storage temperature:-25~+70℃ Humidity: 5~95%RH, No condensation |
| Vibration Resistance | 10~57 HZ, amplitude=0.075mm, 57HZ~150HZ acceleration=1G, 10 times each for X-axis, Y-axis and Z-axis |
| Impact Resistance | 15G, duration=11ms, 6 times each for X-axis, Y-axis and Z-axis |
| Interference Immunity | DC EFT:±2500V Surge:±1000V |
| Over Voltage Resistance | 1500VAC/1min between AC terminal and PE terminal, 500VAC/1min between DC terminal and PE terminal |
| Insulation Impedance | Between AC terminal and PE terminal @500VDC,>=5MΩ ,all input/output points to PE terminal @500VDC |
| Operating environment | Avoid dust, moisture, corrosion, electric shock and external shocks |
Analog Input (AI) Specification
| Properties | Voltage input | Current input | ||||
| Input range | 0V~+10V | 0V~+5V | 1V~+5V | 0~20mA | 4~20mA | |
| Max. allowed input | 13V | 30mA | ||||
| Range of digital value | 0-32000 | 0-32000 | 0-32000 | 0-32000 | 0-32000 | |
| Input impedance | 6MΩ | 250Ω | ||||
| Response time | 2.0ms/ch | |||||
| Resolution | 16 bits | |||||
|
Basic error |
Room temperature
25±5℃ |
±0.20％ | ||||
| Full temperature range | ±0.5％ | |||||
|
Linearity error |
Room temperature
25±5℃ |
±0.10％ | ||||
| Full temperature range | ±0.10％ | |||||
| Status display | If the channel is normal, the indicator light will be on. | |||||
| Diagnostics function | If disconnection or limit-exceeding (≥110%FS) is detected, the indicator light will be off. | |||||
| Isolation | Isolation between an analog circuit and a digital circuit No isolation between channels | |||||
| Power supply | 24VDC ±20%，200mA（Max.） | |||||
| Notices:
1. If the input signal exceeds the input range, the digital value will be 32000. 2. If If the input signal exceeds the maximum allowed voltage or current, the channel might be damaged. 3. It is not allowed to connect the wire inversely. |
||||||
Analog Output (AQ) Specification
| Properties | Voltage output | Current output | ||||
| Output range | 0V~ +10V | 0V~+5V | 1V~+5V | 0~20mA | 4~20mA | |
| Range of digital value | 0-32000 | 0-32000 | 0-32000 | 0-32000 | 0-32000 | |
| Load impedance | 1KΩ@10V | ≥500Ω@ 10V | ≤500Ω | |||
| Response time | 3.0ms/ch | |||||
| Resolution | 12 bits | |||||
|
Basic error |
Room temperature
25±5℃ |
±0.30％ | ||||
| Full temperature range | ±0.60％ | |||||
|
Linearity error |
Room temperature
25±5℃ |
±0.20％ | ||||
| Full temperature range | ±0.20％ | |||||
| Status display | If the channel is normal, the indicator light will be on. | |||||
| Isolation | Isolation between an analog circuit and a digital circuit No isolation between channels | |||||
| Power supply | 24VDC ±20%，200mA（Max.） | |||||
| Properties | Voltage output | Current output |
| Notices:
1. If the load doesn’t meet the requirement, the accuracy of output might be effected. 2. If there is short-circuit or voltage backflow, the channel might be damaged. |
||
Analog Input (AI) Wiring Diagram
Analog Output (AQ) Wiring Diagram
Terminal Diagram
Module Parameter Table
4- channel analog module parameter table
Note: CR code is corresponding to the Modbus register address, the ray parts are read-only ,the white parts are readable and writable.
| CR code | Function Description | ||
| A04AI | A04AO | A04XA | |
| 00H | Low byte for module code, and high byte for module version number. | ||
| 01H | Communication address | ||
|
CR code |
Function Description | ||
| A04AI | A04AO | A04XA | |
|
02H |
Communication protocol: The low 4-bit of the low byte: 0 – N,8,2 For RTU, 1 – E,8,1 For RTU, 2 – O,8,1 For RTU, 3 – N,7,2 For ASCII, 4 – E,7,1 For ASCII, 5 – O,7,1 For ASCII, 6 – N,8, 1 For RTU
The high 4-bit of the low byte: 0 – 2400, 1 – 4800, 2 – 9600, 3 – 19200, 4 – 38400, 5 – 57600, 6 – 115200 |
||
| 03H~06H | Module name | ||
| 07H~08H | Default IP address: 192.168.1.111 | ||
| 09~0AH | Reserve | ||
| 0BH | High byte subnet mask (b3~b0,1 indicates 255, 0 indicates 0, for example subnet mask 255.255.255.0, b3~b0=1110), low byte reserved | ||
| 0CH-0EH | Reserve | ||
| 0FH | Error code: 0-Normal, 1-Illegal firmware identity, 2-Incomplete firmware, 3-System data access exception, 4-No external 24V power supply | ||
| 10H | channel 1 input value | channel 1 output value | input channel 1 input value |
| 11H | channel 2 input value | channel 2 output value | input channel 2 input value |
| 12H | channel 3 input value | channel 3 output value | input channel 1 signal type, note 2 |
| 13H | channel 4 input value | channel 4 output value | input channel 2 signal type, note 2 |
| 14H | channel 1 signal type, note 2 | channel 1 signal type, note 2 | Use the engineering value mark, note 6 |
| 15H | channel 2 signal type, note 2 | channel 2 signal type, note 2 | input channel 1 engineering lower limiting value |
| 16H | channel 3 signal type, note 2 | channel 3 signal type, note 2 | input channel 2 engineering lower limiting value |
| 17H | channel 4 signal type, note 2 | channel 4 signal type, note 2 | input channel 1 engineering upper limiting value |
| 18H | Use the engineering value mark, note 6 | Use the engineering value mark, note 6 | input channel 2 engineering upper limiting value |
| 19H | channel 1 engineering lower limiting value | channel 1 engineering lower limiting value | input channel 1 sampling frequency, note 1 |
| 1AH | channel 2 engineering lower limiting value | channel 2 engineering lower limiting value | input channel 2 sampling frequency, note 1 |
| 1BH | channel 3 engineering lower limiting value | channel 3 engineering lower limiting value | input channel 1 zero point correction value |
| 1CH | channel 4 engineering lower limiting value | channel 4 engineering lower limiting value | input channel 2 zero point correction value |
| 1DH | channel 1 engineering upper limiting value | channel 1 engineering upper limiting value | Channel 1~2 input disconnection alarm, note 5 |
| 1EH | channel 2 engineering upper limiting value | channel 2 engineering upper limiting value | output channel 1 output value |
| 1FH | channel 3 engineering upper limiting value | channel 3 engineering upper limiting value | output channel 2 output value |
| 20H | channel 4 engineering upper limiting value | channel 4 engineering upper limiting value | output channel 1 signal type, note 2 |
| 21H | channel 1 sampling frequency, note 1 | power-off output mark, note 8 | output channel 2 signal type, note 2 |
| 22H | channel 2 sampling frequency, note 1 | channel 1 power-off output value | Use the engineering value mark, note 6 |
| 23H | channel 3 sampling frequency, note 1 | channel 2 power-off output value | output channel 1 engineering lower limiting value |
| 24H | Channel 4 sampling frequency, note 1 | channel 3 power-off output value | output channel 2 engineering lower limiting value |
| 25H | channel 1 zero point correction value | channel 4 power-off output value | output channel 1 engineering upper limiting value |
| 26H | channel 2 zero point correction value | Channel indicator status, note 7 | output channel 2 engineering upper limiting value |
| 27H | channel 3 zero point correction value | Reserve | power-off output mark, note 8 |
| 28H | channel 4 zero point correction value | output channel 1 power-off output value | |
| 29H | Channel 1~4 input disconnection alarm, note 5 | output channel 2 power-off output value | |
| 2AH | Reserve | output channel indicator, note 7 | |
| 2BH~2FH | Reserve | ||
channel analog module parameter table
Note: CR code is corresponding to the Modbus register address, the gray parts are read-only, the white parts are readable and writable.
| CR code | Function description | ||
| A08AI | A08AO | A08XA | |
| 00H | Low byte for module code, and high byte for module version number. | ||
| 01H | Communication address | ||
|
02H |
Communication protocol: The low 4-bit of the low byte: 0 – N,8,2 For RTU, 1 – E,8,1 For RTU, 2 – O,8,1 For RTU, 3 – N,7,2 For ASCII, 4 – E,7,1 For ASCII, 5 – O,7,1 For ASCII, 6 – N,8, 1 For RTU
The high 4-bit of the low byte: 0 – 2400, 1 – 4800, 2 – 9600, 3 – 19200, 4 – 38400, 5 – 57600, 6 – 115200 |
||
|
CR code |
Function description | ||
| A08AI | A08AO | A08XA | |
| 03H~06H | Module name | ||
| 07H~08H | Default IP address: 192.168.1.111 | ||
| 09~0AH | Reserve | ||
| 0BH | High byte subnet mask (b3~b0,1 indicates 255, 0 indicates 0, for example subnet mask 255.255.255.0, b3~b0=1110), low byte reserved | ||
| 0CH~0EH | Reserve | ||
| 0FH | Error code: 0-Normal, 1-Illegal firmware identity, 2-Incomplete firmware, 3-System data access exception, 4-No external 24V power supply | ||
| 10H | channel 1 input value | channel 1 output value | input channel 1 input value |
| 11H | channel 2 input value | channel 2 output value | input channel 2 input value |
| 12H | channel 3 input value | channel 3 output value | input channel 3 input value |
| 13H | channel 4 input value | channel 4 output value | input channel 4 input value |
| 14H | channel 5 input value | channel 5 output value | input channel 1 signal type, note 2 |
| 15H | channel 6 input value | channel 6 output value | input channel 2 signal type, note 2 |
| 16H | channel 7 input value | channel 7 output value | input channel 3 signal type, note 2 |
| 17H | channel 8 input value | channel 8 output value | input channel 4 signal type, note 2 |
| 18H | channel 1 signal type, note 2 | channel 1 signal type, note 2 | Use the engineering value mark, note 6 |
| 19H | channel 2 signal type, note 2 | channel 2 signal type, note 2 | input channel 1 engineering lower limiting value |
| 1AH | channel 3 signal type, note 2 | channel 3 signal type, note 2 | input channel 2 engineering lower limiting value |
| 1BH | channel 4 signal type, note 2 | channel 4 signal type, note 2 | input channel 3 engineering lower limiting value |
| 1CH | channel 5 signal type, note 2 | channel 5 signal type, note 2 | input channel 4 engineering lower limiting value |
| 1DH | channel 6 signal type, note 2 | channel 6 signal type, note 2 | input channel 1 engineering upper limiting value |
| 1EH | channel 7 signal type, note 2 | channel 7 signal type, note 2 | input channel 2 engineering upper limiting value |
| 1FH | channel 8 signal type, note 2 | channel 8 signal type, note 2 | input channel 3 engineering upper limiting
value |
| 20H | Use the engineering value mark, note 6 | Use the engineering value mark, note 6 | input channel 4 engineering upper limiting value |
| 21H | channel 1 engineering lower limiting value | channel 1 engineering lower limiting value | input channel 1 sampling frequency, note 1 |
| 22H | channel 2 engineering lower limiting value | channel 2 engineering lower limiting value | input channel 2 sampling frequency, note 1 |
| 23H | channel 3 engineering lower limiting value | channel 3 engineering lower limiting value | input channel 3 sampling frequency, note 1 |
| 24H | channel 4 engineering lower limiting value | channel 4 engineering lower limiting value | input channel 4 sampling frequency, note 1 |
| 25H | channel 5 engineering lower limiting value | channel 5 engineering lower limiting value | input channel 1 zero point correction value |
| 26H | channel 6 engineering lower limiting value | channel 6 engineering lower limiting value | input channel 2 zero point correction value |
| 27H | channel 7 engineering lower limiting value | channel 7 engineering lower limiting value | input channel 3 zero point correction value |
| 28H | channel 8 engineering lower limiting value | channel 8 engineering lower limiting value | input channel 4 zero point correction value |
| 29H | channel 1 engineering upper limiting value | channel 1 engineering upper limiting value | Channel 1~4 input disconnection alarm, note 5 |
| 2AH | channel 2 engineering upper limiting value | channel 2 engineering upper limiting value | output channel 1 output value |
| 2BH | channel 3 engineering upper limiting value | channel 3 engineering upper limiting value | output channel 2 output value |
| 2CH | channel 4 engineering upper limiting value | channel 4 engineering upper limiting value | output channel 3 output value |
| 2DH | channel 5 engineering upper limiting value | channel 5 engineering upper limiting value | output channel 4 output value |
| 2EH | channel 6 engineering upper limiting value | channel 6 engineering upper limiting value | output channel 1 signal type, note 2 |
| 2FH | channel 7 engineering upper limiting value | channel 7 engineering upper limiting value | output channel 2 signal type, note 2 |
| 30H | channel 8 engineering upper limiting value | channel 8 engineering upper limiting value | output channel 3 signal type, note 2 |
| 31H | channel 1 sampling frequency, note 1 | power-off output mark | output channel 4 signal type, note 2 |
| 32H | channel 2 sampling frequency, note 1 | channel 1 power-off output value | Use the engineering value mark, note 6 |
| 33H | channel 3 sampling frequency, note 1 | channel 2 power-off output value | output channel 1 engineering lower limiting value |
| 34H | channel 4 sampling frequency, note 1 | channel 3 power-off output value | output channel 2 engineering lower limiting value |
|
CR code |
Function description | ||
| A08AI | A08AO | A08XA | |
| 35H | channel 5 sampling frequency, note 1 | channel 4 power-off output value | output channel 3 engineering lower limiting value |
| 36H | channel 6 sampling frequency, note 1 | channel 5 power-off output value | output channel 4 engineering lower limiting value |
| 37H | channel 7 sampling frequency, note 1 | channel 6 power-off output value | output channel 1 engineering upper limiting value |
| 38H | channel 8 sampling frequency, note 1 | channel 7 power-off output value | output channel 2 engineering upper limiting value |
| 39H | channel 1 zero point correction value | channel 8 power-off output value | output channel 3 engineering upper limiting value |
| 3AH | channel 2 zero point correction value | Channel indicator status | output channel 4 engineering upper limiting value |
| 3BH | channel 3 zero point correction value | Reserve | power-off output mark |
| 3CH | channel 4 zero point correction value | output channel 1 power-off output value | |
| 3DH | channel 5 zero point correction value | output channel 2 power-off output value | |
| 3EH | channel 6 zero point correction value | output channel 3 power-off output value | |
| 3FH | channel 7 zero point correction value | output channel 4 power-off output value | |
| 40H | channel 8 zero point correction value | output channel indicator | |
| 41H | Channel 1~8 input disconnection alarm, note 5 | Reserve | |
| 42H~4FH | Reserve | ||
Note
- Sampling frequency:0 – 2 times, 1 – 4 times, 2 – 8 times, 3 – 16 times, 4 – 32 times, 5 – 64 times, 6 – 128 times, 7 – 256 times
- Signal type: 0 – [4,20]mA, 1 – [0,20]mA, 2 – [1,5]V, 3 – [0,5]V, 4 – [0,10]V
- Disconnection alarm: Each bit indicates 1 channel, 0-normal, 1-disconnection
- Use the engineering value mark: Each bit indicates 1 channel, 0-No, 1-Yes
- Channel indicator status:Each bit indicates 1 channel, 0-off, 1-on
- Power-off output mark:Each bit indicates 1 channel, 0-No, 1-Yes
Mounting and installation
The PLC should be secured to an enclosed cabinet while mounting. For heat dissipation, make sure to provide a minimum clearance of 50mm between the unit and all sides of the cabinet. (See the figure.)
Rail Mounting: Use standard 35 mm rail.
Connecting Extended Module
Join lower right parallel interface of Last module (Host or Extension Module ) to the lower right of the parallel interface of next module, then tight with two buckles on top and bottom.
The interface of the right side module is left for extension interface for next extension module.
Analog Module Application Case
- Expand module through the host PLC parallel port
Module power supply
Analog module can be the expansion module for A series PLC; When the module is directly connect to the host PLC, no need to take external power supply, the module is powered by host PLC.
The analog need’t be written any conversion program, read the analog register value directly.
For example, the host PLC AT16S0R, respectively, is expanded with three modules of A16DI, A16XDR, A04AI and A04AO from left to right, assuming the scene:
- Analog module A04AI input channel 1, signal type is 4-20mA, used to measure the pressure, the pressure range of 0.0~3.0Mpa;
- Analog module A04AO input channel 1, signal type is 0-10V, used to control the inverter frequency of 0.0~50.0Hz;
First enter the PLC programming software menu bar – view – hardware configuration, in accordance with the external order of actual modules to add the module models, after added, the analog address will be automatically arranged, as shown below:
Haiwell analog module need’t be written any conversion program, as for above pressure measurement, we only need to check the use of engineering value, set the lower limit value of 0 corresponding 0.0Mpa, set the upper limit value of 3000 indicating 3.000Mpa, the upper limit value 3000 hidden three decimal places can achieve magnification times and improve accuracy. Then we read the value of the analog input register AI0, if AI0 = 1234, then the actual value is 1.234Mpa.
Similarly, for the analog output, check the use of engineering value, set the lower limit value of 0 indicating 0.0Hz, set the upper limit value of 500 indicating 50.0Hz, if you want the inverter frequency output is 25.6Hz, as long as force the AQ0 value as 256 or through other logic instructions to output the AQ0 value of 256. As shown below:
Programming skills
If you want to write the alarm program that pressure exceeds the setting value,for example, when the pressure is more than 1.25Mpa, it will alarm, the program of PLC can be written as follows:
Display analog value on SCADA, HMI
If the SCADA, touch screen, text and other PC software want to display the current pressure, only need to set three decimal digits on the numerical display primitive, then the read value will be automatically reduced 1000 times in the configuration, that is the actual temperature value, for example, you can set 3 on decimal digits of Haiwell Cloud SCADA settings.
So that when the PLC read AI0 value, AI0=1234, that is the actual value of 1.234Mpa, there is no need to have data processing in PLC and configuration, only set the 3 decimal places on the numerical display primitive, then it will be automatically reduced by 1000 times, displaying value of 1.234, that is the actual value of 1.234Mpa.
when the engineering value is not used, the default code value is 0 ~ 32000
When using the engineering value, the linear transformation is specified by the lower limit and the upper limit value, and the program is automatically transformed. When the engineering value is not used, all types are unified to correspond with 0 ~ 32000 code value.The same case of pressure measurement, this time can according to the linear transformation formula: Out = (In – InDw) * (OutUp- OutDw) / (InUp- InDw) + OutDw to write the conversion program, or use the SC linear transformation instructions to calculate directly.
Haiwell analog used easily, it is recommended to check the use of engineering value, so that the analog will be very convenient without writing any program.
Module CR code application example: Read the module channel disconnection alarm
In this example, in order to read the external sensor disconnection information of A08XA module, the disconnection alarm data of A08XA module input channel 1-4 is stored in CR29, that is, 29H (hexadecimal), decimal 41. (More CR contents can be found in the software online help – hardware manual – expansion module parameters within the corresponding model). This program is as follows:
- Slot: Position number, A08XA is the third module, so fill in 3;
- CR: Module disconnection alarm CR41, that is, 29H (hexadecimal) = 41 (decimal), it can be directly input 41 or 0x29 into the instruction CR terminal;
- N: Number for readings, 1 register for 16 bits, low 4 bits corresponding channel 1-4, disconnection for 1 (ON), normal for 0 (OFF).
Thanks for choosing Haiwell Products, If you have any questions about our products or services, please let us know!Haiwell website: www.haiwell.com Copyright © 2005 Xiamen Haiwell Technology Co.,Ltd.
Documents / Resources
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Haiwell A04AI Series Card-type PLC Analog Module [pdf] User Manual A04AI Series Card-type PLC Analog Module, A04AI Series, Card-type PLC Analog Module, PLC Analog Module, Analog Module, Module |
