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ABB TA5141-RS232I: AC500, RS232 Serial
ABB TA5141-RS232I AC500-eCo V3 isolated RS-232 serial communication option board with hardware handshake, 9.6–115.2 kbit/s transmission and 500 V DC potential separation from the CPU.
Why Choose the ABB TA5141-RS232I Isolated RS-232 Option Board?
The ABB TA5141-RS232I is an isolated RS-232 serial communication option board designed to extend the communication capabilities of compatible ABB AC500-eCo V3 programmable logic controllers. It provides one RS-232 serial interface with hardware handshake support, allowing the PLC to communicate with compatible serial devices using configurable industrial communication protocols.
Designed for ABB AC500-eCo V3 systems, the TA5141-RS232I supports communication speeds from 9.6 kbit/s to 115.2 kbit/s. The interface is galvanically isolated from the CPU with 500 V DC potential separation, helping separate the serial communication circuitry from the controller electronics in industrial installations.
The TA5141-RS232I features a 5-pin removable spring terminal block with 3.50 mm pitch and provides RTS, TxD, GND, RxD and CTS connections. Dedicated yellow TxD and RxD LEDs provide visual indication of transmitted and received data, simplifying commissioning and communication diagnostics.
Key Advantages
- Adds one isolated RS-232 serial interface to compatible ABB AC500-eCo V3 PLCs.
- Supports communication rates from 9.6 kbit/s to 115.2 kbit/s.
- Provides 500 V DC galvanic isolation from the CPU.
- Includes RTS and CTS hardware handshake signals alongside TxD and RxD.
- Dedicated TxD and RxD yellow LEDs provide clear communication activity indication.
- Supports programmable serial communication including Modbus RTU and CAA SerialCom.
- Supplied with the required 5-pin spring terminal block.
Key Features
- ABB AC500-eCo V3 serial communication option board.
- 1 × EIA RS-232 serial interface.
- RS-232 interface with hardware handshake.
- 9.6–115.2 kbit/s configurable transmission rate.
- 500 V DC potential separation from the CPU.
- Programmable communication protocol.
- Supports Modbus RTU applications.
- Supports CAA SerialCom communication.
- Yellow LEDs indicate TxD transmitting and RxD receiving activity.
- Removable 5-pin spring/cable front terminal block.
Flexible Isolated RS-232 Communication for AC500-eCo V3 PLCs
RS-232 remains widely used for point-to-point communication with industrial equipment such as operator interfaces, measuring instruments, barcode readers, serial converters and other automation devices. The ABB TA5141-RS232I adds a dedicated RS-232 channel to a compatible AC500-eCo V3 CPU, enabling serial data exchange without requiring a separate external communication gateway.
The interface supports programmable protocols and can be used for applications such as Modbus RTU or custom serial communication through CAA SerialCom. Hardware handshake signals RTS and CTS are provided in addition to TxD and RxD, while galvanic separation from the CPU and dedicated communication LEDs support reliable integration, commissioning and troubleshooting.
Typical Applications
- Modbus RTU serial communication.
- Industrial HMI and operator interface communication.
- Barcode reader and identification equipment integration.
- Serial measuring instrument communication.
- Industrial printer and peripheral integration.
- Point-to-point communication with compatible automation equipment.
- Custom serial protocols using CAA SerialCom.
- OEM control panels using ABB AC500-eCo V3 PLCs.
Technical Specifications
| Manufacturer | ABB |
|---|---|
| Series | AC500-eCo V3 |
| Model | TA5141-RS232I |
| ABB order code | 1SAP187300R0001 |
| Product type | Isolated RS-232 serial communication option board |
| Number of serial interfaces | 1 |
| Serial interface standard | EIA RS-232 |
| Interface type | RS-232 with handshake |
| Transmission rate | 9.6–115.2 kbit/s |
| Potential separation | Yes, 500 V DC from CPU |
| Configuration | Software configurable |
| Operating mode | Data exchange |
| Protocol | Programmable, including Modbus RTU / CAA SerialCom |
| Status indication | 2 yellow LEDs, TxD and RxD |
| Connection | Removable 5-pin spring terminal block |
| Terminal pitch | 3.50 mm |
| Terminal 1 | RTS, Request To Send |
| Terminal 2 | TxD, transmit data |
| Terminal 3 | GND, common ground |
| Terminal 4 | RxD, receive data |
| Terminal 5 | CTS, Clear To Send |
| Communication topology | RS-232 point-to-point connection |
| Configuration software | ABB Automation Builder |
| Weight | approx. 15 g |
| HS Code | 85389091 |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB TA5141-RS232I used for?
The TA5141-RS232I is an isolated RS-232 serial communication option board used to add one configurable RS-232 interface to compatible ABB AC500-eCo V3 programmable logic controllers.
What communication speed does the TA5141-RS232I support?
The TA5141-RS232I supports configurable RS-232 transmission rates from 9.6 kbit/s to 115.2 kbit/s.
Is the TA5141-RS232I galvanically isolated?
Yes. ABB specifies 500 V DC potential separation between the RS-232 interface and the CPU.
Does the TA5141-RS232I support Modbus RTU?
Yes. The interface is programmable through ABB Automation Builder and can be used for Modbus RTU as well as serial communication using CAA SerialCom.
What connections are provided on the TA5141-RS232I?
The supplied 5-pin terminal block provides RTS, TxD, GND, RxD and CTS connections, giving the interface transmit, receive and hardware handshake functionality.
Reliable Serial Communication from ABB
The ABB TA5141-RS232I provides AC500-eCo V3 controllers with an isolated EIA RS-232 interface featuring hardware handshake, configurable 9.6–115.2 kbit/s communication and support for programmable serial protocols including Modbus RTU.
