User manual

Transferring Discrete and BlockTransfer Data
Chapter 8
8-5
Condition the ladder logic in the adapter-mode processor with word 8, bit 8
decimal of the adapter image file. When set, this bit indicates a
communication failure between the adapter and supervisory processors.
ATTENTION: Do not program block transfers to a
supervisory processor if you create an adapter image file.
Transferring Bits between Supervisory and AdapterMode Processors
Figure 8.2 shows ladder logic for transferring bit 17 of the supervisory
processor’s output image word 7 and bit 16 of the adapter-mode
processor’s output image word 5. The x represents the adapter-mode
processor’s rack number; rack 3 is the simulated rack for the adapter-mode
processor. This example assumes 1-slot or 2-slot hardware addressing.
Figure 8.2
Transferring
Bits Using Rack 3 in the AdapterMode Processor
17
16
I:37
17
O:35
16
Supervisory Processor (PLC2) Adapter Processor (PLC5)
0x7
Ix5
When the supervisory processor sets its output file bit 0x:7/17, input file bit
I:37/17 in the adapter-mode processor is automatically set. In the same
way, when the adapter-mode processor sets output file bit O:35/16, input
file bit Ix:5/16 in the supervisory processor is automatically set.
Figure 8.3 shows the ladder logic if you created an adapter image file
because you need rack 3 addresses for local I/O. This example uses N51
as the adapter image file.
Figure 8.3
Transferring
Bits Using Your Own Adapter Image File
17
16
N51:15
15
N51:05
14
Supervisory Processor (PLC2) Adapter Processor (PLC5)
0x7
Ix5