Programming via the Serial Interfaces

The operation modes of the serial interfaces COM1 and COM2 are described in the chapter PLC configuration COM1/COM2: Serial Interfaces COM1 and COM2

The Installation guide provides information how to set the serial interfaces for the different PC operating systems.

For the CPUs PM57x, PM58x and PM59x, PC and PLC are connected via the Programming Cable TK501 or TK502.

For the CPUs PM55x and PM56x, PC and PLC are connected via the Programming Cable TK503 or TK504.

Note

The load of PM55x and PM56x should not exceed 80 % in order to obtain a stable communication between the PLC and the PC via the serial interfaces. The load of the CPU can be displayed with the PLC Browser via the command cpuload.

The interface parameters are set to fixed values and cannot be changed.

Baudrate: 19200 baud

Parity bit: no

Data bits: 8

Stop bits: 1

Synchronization: none

Motorola byteorder: yes

The following drivers are available for programming via the serial interfaces:

• Serial (RS232)
• ABB RS232 Route AC (as of PS501 V1.2, routing as of firmware V1.3.x)

• Serial Driver “Serial (RS232)”
• Serial Driver “ABB RS232 Route AC”