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CHAPTER7 COMMUNICATIONS WITH INTELLIGENT FUNCTION MODULE
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7.1 Communications between CPU Module and Intelligent Function Module
7.1.5 Communications using the intelligent function module dedicated instruction
7.1.5 Communications using the intelligent function module dedicated
instruction
(1) Intelligent function module dedicated instruction
This instruction enables easy programming for the use of functions of the intelligent function module.
(a) Example with the serial communication module dedicated instruction (OUTPUT
instruction)
The OUTPUT instruction allows communications with external device by nonprocedural protocol regardless of
the buffer memory address of the serial communication module.
[Transmission by the OUTPUT instruction]
(2) Processing of the intelligent function module dedicated instruction
Some of intelligent function module dedicated instructions can specify the completion device.
This completion device turns on for one scan when an instruction execution is completed.
When using multiple intelligent function module dedicated instructions to one intelligent function module, execute
the dedicated instructions one by one after the completion device turns on.
Figure 7.8 Communications with external devices using the OUTPUT instruction
b15 b0
to
S2
+0
+1
+2
CPU module Serial communication module
Channel
1
Channel
2
Send
Send
Set the used
channel in
control data.