Communication Mode Of The Com1 Serial Interface - ABB AC 31 Technical Manual

ABB Control - AC 31
1SBC 260400 R1001-b 06.99
Programming

4.1.11. Communication mode of the COM1 serial interface

The serial port of the central unit may be used in different modes:
Programming mode to program and test the central unit
ASCII mode for communicating between the central unit and another ASCII device
MODBUS® for communicating between the central unit and another MODBUS
To use one of these communication modes you must:
Configure the serial interface by selecting one of the proposed parameters in the
configuration window
Know the position of the RUN/STOP button
Use the right cable:
- For programming : 07 SK 50 or 07 SK 52
- For ASCII / MODBUS
Parameter selection
Standard
Programming
ASCII
®
MODBUS
x: choice with no effect
®
: 07 SK 51 or 07 SK 53
RUN/STOP position Cable
STOP x
RUN programming
ASCII/MODBUS
x x
RUN x
STOP x
x ASCII/MODBUS
programming
®
device.
Communication
mode
programming
programming
®
ASCII
programming
ASCII
programming
® ®
MODBUS
programming
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