Advant Controller 31 Analog Input/Output Module GJR5252300R3101 07AC91
AC31 is an early PLC/DCS hybrid control system launched by ABB:
Supports centralized and distributed control
Based on CS31 bus communication
Complies with IEC 61131-3 programming standard
Extensible remote I/O
07AC91(GJR5252300R3101), as a remote I/O module in the AC31 system, communicates with the controller via the CS31 bus and supports multi-channel analog signal processing. It can meet the requirements for collecting and outputting various industrial standard signal types, such as voltage and current.
Technical Specifications
|
Manufacture |
ABB |
|
Model |
07AC91 |
| Part Number |
GJR5252300R3101 |
|
Description |
Analog I/O module |
| Number of channels | 8 AI+8 AO |
| Communication method | CS31 Bus |
| Power supply | 24VDC |
|
Origin |
Germany |
|
Dimension |
15*15*12cm |
|
Weight |
0.81kg |
Overview of the Analog Channel
GJR5252300R3101 07AC91 Compatibility:
AC31 series PLC (40/50/90 series)
Distributed expansion system
Multiple industrial communication protocols
07AC91 supports two working modes:
Mode 1:
8 analog inputs + 8 analog outputs
Resolution: 12-bit
Mode 2:
16 channels (can be configured as input or output in pairs)
Resolution: 8-bit
The analog input/output module 07 AC 91 is used as a remote module on the CS31 system bus. It contains 16 analog input/output channels that can be configured in two operating modes:
• Operating mode "12 bits": 8 input channels, individually configurable ±10 V or 0...20 mA, 12 bit resolution plus 8 output channels, individually configurable ±10 V or 0...20 mA, 12 bit resolution
• Operating mode "8 bits": 16 channels, configurable in pairs as inputs or outputs, 0...10 V,0...20 mA, 8-bit resolution
• The configuration is set with DIL switches.
• The PLC offers an interconnection element ANAI4_20 for measuring signals of 4...20 mA (refer to 907 PC 331, connection element library).
Operation of the AC31 Analog Module
✔ Installation method
DIN rail installation (standard 35mm)
Fixed inside the control cabinet
✔ Wiring structure
The module has three types of connections:
Power supply: 24VDC power supply
CS31 bus: Connects to PLC (AC31 controller)
Field signals:
Input: Sensors
Output: Actuators
Set the DIP switch: 07AC91. All functions are configured through DIP switches (hardware jumpers)
-- Select the working mode
-- Set input type
-- Set module address
Connecting the wires
--Simulation input (AI) wiring
--Analog Output (AO) wiring
Identifying the module in the PLC
The front panel of the module has:
Green LED (Channel/Status)
Red LED (Fault)
Common data errors during use
Q: After installing the module, the CPU is unable to recognize it, or the module does not respond.
A: Module address is set incorrectly
The configuration of the DIP switch is incorrect.
The bus is not properly connected, or the termination resistor is missing.
Q: The analog quantities read by the PLC fluctuate greatly, deviate from the actual values, or often show abnormal readings.
A: Signal line interference
The sensor's current/voltage range does not match.
Q: When the module red light is on, or the LED is flashing, the PLC detects an error.
A: Measurement exceeds the set limit
Internal communication error or CS31 bus error
Q: The module occasionally loses connection, has unstable communication, or reports a bus error from the PLC.
A: The CS31 bus exceeds the permitted length, resulting in data loss.
Electromagnetic interference or loose connections caused the communication to be interrupted.