ABB AC500 PLC - Serial Interface COM1; Serial Interface COM2

NOTICE!
Risk of damaging the terminal base!
Excessive current might damage the clamp and terminal base.
Make sure that the current flowing through the removable clamps never
exceeds 8 A (with 1.5 mm
2
conductor).
Serial Interface COM1
Serial Interface Pin Signal Interface Description
Terminal
block
removed
Terminal
block
inserted
1 Terminator P RS-485 Terminator P
2 RxD/TxD-P RS-485 Receive/Transmit,
positive
3 RxD/TxD-N RS-485 Receive/Transmit,
negative
4 Terminator N RS-485 Terminator N
5 RTS RS-232 Request to send
(output)
6 TxD RS-232 Transmit data
(output)
7 SGND Signal Ground
8 RxD RS-232 Receive data
(input)
9 CTS RS-232 Clear to send
(input)
The serial interface COM1 is connected to a removable 9-pin terminal block. It is configurable
for RS-232 and RS-485.
NOTICE!
Unused connector!
Make sure that the terminal block is always connected to the terminal base,
even if you do not use the interface.
For a detailed description of COM1, please refer to Serial interface COM1 Ä Chapter 2.6.4.6
“Serial Interface COM1 of the Terminal Bases” on page 1278.
Serial Interface COM2
The serial interface COM2 is connected to a D-sub 9. It is configurable for RS-232 and RS-485.
COM2 cannot be used for communication via CS31 System Bus. For a detailed
description of COM2, please refer to Serial interface COM2. Ä Chapter 2.6.4.7
“Serial Interface COM2 of the Terminal Bases ” on page 1280
Pin assignment
Device Specifications
Processor Modules > AC500 (Standard)
2019/04/173ADR010121, 13, en_US84