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AS-i/INTERBUS Gateway
6170
B
24
• The control word is replaced by the status word in the read cycle. The status
word supplies status information to the INTERBUS master.
• 14 words (224 bits) constitute the fast process data channel. Here, bits are ex-
changed directly with the AS-i, so that four bits are available for altogether 55
AS-i slaves (address 0 is reserved for special tasks).
7.1.1 Process Data Channel
The process data channel transfers logical states directly between the pro-
grammable logic controller (PLC) and the digital actuators and sensors on the
AS-i. INTERBUS and AS-i are thus invisible for machine programming, i. e. there
is no difference with conventional parallel wiring for the INTERBUS master (con-
troller).
The images of the sensors and actuators in the PLC are as follows:
1st word
2nd word
...
...
7th word
8th word
PCP (1 word) Control word Process Data (8 words)
For the assignment of the (Word.Bit) or (Byte.Bit) view to the user set
control or computer system, please refer to data sheet
DB GB IBS SYS ADDRESS, Order No. 90 00 99 0.
slave 1 / 1A slave 2 / 2A slave 3 / 3A
X X X X D3 D2 D1 D0 D3 D2 D1 D0 D3 D2 D1 D0
bit 15 bit 0
slave 4 / 4A slave 5 / 5A slave 6 / 6A slave 7 / 7A
D3 D2 D1 D0 D3 D2 D1 D0 D3 D2 D1 D0 D3 D2 D1 D0
bit 15 bit 0
slave 24 / 24A slave 25 / 25A slave 26 / 26A slave 27 / 27A
D3 D2 D1 D0 D3 D2 D1 D0 D3 D2 D1 D0 D3 D2 D1 D0
Bit 15 Bit 0
slave 28 / 28A slave 29 / 29A slave 30 / 30A slave 31 / 31A
D3 D2 D1 D0 D3 D2 D1 D0 D3 D2 D1 D0 D3 D2 D1 D0
Bit 15 Bit 0