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4.2.1
How the PLC Addresses the Slaves
The CP 343-2 manages the binary data of the B slaves in two 16-byte long areas
(one area for the input data and one area for the output data). The structure of
these areas corresponds to the structure of the binary data for the standard or A
slaves.
Assignment:
I/O byte number
n+0
n+1
n+2
n+3
n+4
n+5
n+6
n+7
n+8
n+9
n+10
n+11
n+12
n+13
n+14
n+15
n = base address
CP 343−2 / CP 343−2 P AS−Interface Master
Release 08/2008
C79000−G8976−C149−04
4 Data Exchange between User Program and AS−i Slaves
Bit 7−4
reserved
Slave 2B
Slave 4B
Slave 6B
Slave 8B
Slave 10B
Slave 12B
Slave 14B
Slave 16B
Slave 18B
Slave 20B
Slave 22B
Slave 24B
Slave 26B
Slave 28B
Slave 30B
Bit 3
| Bit 2
| Bit 1
| Bit 0
Bit 3−0
Slave 1B
Bit 3
| Bit 2
| Bit 1
| Bit 0
Slave 3B
Slave 5B
Slave 7B
Slave 9B
Slave 11B
Slave 13B
Slave 15B
Slave 17B
Slave 19B
Slave 21B
Slave 23B
Slave 25B
Slave 27B
Slave 29B
Slave 31B
Bit 3
| Bit 2
| Bit 1
| Bit 0
45
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