2.5.4.2 Processor module interfaces
The I/O bus is not available for PM5012-T-ETH and PM5012-R-ETH. I/O
channel extension using option board slot only.
The I/O bus is the I/O data bus for the I/O modules. Through this bus, I/O and diagnosis data
are transferred between the processor module and the I/O modules. Up to 10 I/O modules for
PM5032-x-ETH (but with a limit of 128 Bytes input/ 128 Bytes output variables) and 10 I/O
modules for PM5052-x-ETH and PM5072-T-2ETH can be added.
Depending on the processor module variants, an additional option board can be connected to
the option board slot to extend the feature of the processor module .
RS-232 communication interface is available by using option board:
● TA5141-RS232I (isolated)
Ä
Chapter 1.3.1.2.6 “TA5141-RS232I - Option board for COMx serial communication”
on page 75
RS-485 communication interface is available by using option boards:
● TA5142-RS485I (isolated)
Ä
Chapter 1.3.1.2.7 “TA5142-RS485I - Option board for COMx serial communication”
on page 78
● TA5142-RS485 (non isolated)
Ä
Chapter 1.3.1.2.8 “TA5142-RS485 - Option board for COMx serial communication”
on page 84
2.5.4.2.1 Ethernet
Ethernet is also used for Modbus TCP connection.
Ethernet interface
The Ethernet interface is carried out via a RJ45 jack. The pin assignment of the Ethernet
interface:
Interface Pin Description
1 Tx+ Transmit Data +
2 Tx- Transmit Data -
3 Rx+ Receive data +
4 NC Not connected
5 NC Not connected
6 Rx- Receive data -
7 NC Not connected
I/O bus
Option board
slot interface
Serial interface
System assembly, construction and connection
AC500-eCo > Connection and wiring
2022/01/31 3ADR010278, 3, en_US 945
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