Communication Parameters - ABB AC 31 Technical Manual

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

4.1.12. communication parameters:

They are defined as follows, according to the mode:
Mode Default parameters
Programming 9 600 Bauds
no parity
8 data bits
1 stop bit
ASCII no default parameters defined
®
MODBUS 9 600 Bauds
no parity
8 data bits
1 stop bit
It is possible to choose the delay time of the RTS signal whichever communication mode is
chosen, select this delay from the list of the "RTS signal delay": line. The default parameter is
" norm al", in this case the RTS signal delay depends on the number of characters in the buffer.
Mode
Programming or ASCII
®
MODBUS
Modification of parameters
parameters non modifiable
parameters are defined by using the
SINIT function in the user program
modification of parameters by using
the SINIT function in the user
program
Delay time System constant KW 00.06
3 characters KW 00.06 > 1000
1 character 1101 < KW 00.06 < 1355
32 ms 2101 < KW 00.06 < 2355
64 ms 3101 < KW 00.06 < 3355
96 ms 4101 < KW 00.06 < 4355
128 ms 5101 < KW 00.06 < 5355
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