Transmission By Word - ABB AC 31 Technical Manual

ABB Control - AC 31
1SBC 260400 R1001-b 06.99
Program Optimization
The program:
- On the master central unit:
bit reception in %I20.00
%I20.00
bit emission in %O20.00
VALUE_FOR_SLAVE
- On the slave central unit at the address 20:
bit reception in %I00.00
%I00.00
bit emission in %O00.00
VALUE_M00

5.3.2. Transmission by word

CU master
Figure 6-10 : Transmission by words
The master central unit will receive the analog information from the slave central unit in the
IWxx.00 to IWxx.N inputs, (N+1) being the number of words to transmit from the slave central
unit to the master central unit.
The slave central unit will send this information through the OW00.00 to OW00.N outputs.
VALUE_M00
%O20.00
VALUE_FOR_SLAVE
%O00.00
CS 31 bus
CU slave
Address xx
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