ABB 07CR41 Operating Manual page 83

Advant Controller AC 31 / Issued: 01.99
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Application mode: serial interface COM1
The serial port of the basic unit can be used in various modes:
Programming mode for programming and checking the basic unit (active mode)
Passive mode for communication between the basic unit and a different passive device
®
MODBUS for communication between the basic unit and a different MODBUS
The following requirements must be met in order to be able to use one of these
communications modes:
The serial interface is configured by the system constant KW 0,6
Awareness of the position of the RUN/STOP switch
Use of the correct cable:
- For programming 07 SK 50 or 07 SK 52 (active)
- For ASCII/MODBUS
KW 0,06
Parameter
selection
Standard 0, <0, >2
<100
>355
Active 1
Passive 2
®
MODBUS >99
<356
x: selection without any consequence
®
: 07 SK 51 or 07 SK 53 (passive)
RUN/STOP position Cable
STOP X
RUN Active
Passive/MODBUS
x X
RUN X
STOP X
x Passive/MODBUS
Active
5 – 11 Programming
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device.
Communications
mode
Active
Active
®
Passive
Active
Passive
Active
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MODBUS
Active
3