ABB AC500 V3 - 1.3.1.2.8 TA5142-RS485 - Option board for COMx serial communication

1.3.1.2.8 TA5142-RS485 - Option board for COMx serial communication
1 2 LEDs for communication state display (TxD and RxD)
2 2 LEDs for termination state display
3 Allocation of signal name
4 5-pin terminal block for communication interface
Option board for COMx serial communication TA5142-RS485(I) is equipped with 1 RS-485
(2-wire half-duplex) serial interface which can be used for communication via Modbus RTU or
CAA SerialCom.
Bus terminations are built-in and configurable.
NOTICE!
Damage to the serial communication interface by using 5-pin terminal
block of the TA5101-4DI!
If the 5-pin terminal block of the TA5101-4DI option board is plugged into a
option board for COMx serial communication TA5141-RS232I, TA5142-RS485I
or TA5142-RS485, the communication interface will be damaged by the 24 V.
Please do not confuse the 5-pin terminal block of the TA5101-4DI with the 5-pin
terminal block for serial communication interface of TA5141-RS232I, TA5142-
RS485I or TA5142-RS485.
Table 37: TA5142-RS485(I)
Serial interface Pin Signal
1 A1
internally connected to A2
2 B1
internally connected to B2
3 GND
Intended pur-
pose
Connections
Serial interfaces
Device specifications
Processor modules > AC500-eCo
2022/01/313ADR010278, 3, en_US84