ABB CI522-MODTCP User Manual

32.5.1 Power Supply
Pin Assignment Label Function Description
Terminal block
removed
Terminal block
inserted
L+ +24 VDC Positive pin of the
power supply voltage
L+ +24 VDC Positive pin of the
power supply voltage
M 0 V Negative pin of the
power supply voltage
M 0 V Negative pin of the
power supply voltage
FE Functional earth
32.5.2 Serial Interface COM1
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 Signal Ground
8 RxD RS-232 Receive data
(input)
9 CTS RS-232 Clear to send
(input)
NOTICE!
Unused connector!
Make sure that the terminal block is always connected to the terminal base,
even if you do not use the interface.
32.5.3 Serial Interface COM2
Serial
Interface
Pin Signal Interface Description
1 FE - Functional earth
2 TxD RS-232 Transmit data Output
3 RxD/TxD-P RS-485 Receive/Transmit Positive
4 RTS RS-232 Request to send Output
5 SGND Signal ground 0 V supply out
Pin Assignment
Pin Assignment
Pin Assignment
TB51x-TB54x
Connection > Serial Interface COM2
2019/11/15 3ADR024117M02xx, 11, en_US 245

ABB CI522-MODTCP Specifications

General

Brand	ABB
Model	CI522-MODTCP
Category	I/O Systems
Language	English