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9.5. Functional Configuration of Program in ST Language
9.5.1.
This program is written in the ST language. The function configuration is as follows.
Major
classification
1.
Communicatio
n processing
2.
Initialization
processing
3. PMCR
Communication
processing
4.
Processing
number
error
processing
Minor classification
1.1.Communication processing start
1.2.Communication processing status flag
column clear
1.3. Communication execution processing
state and state transition processing
2.1. Initialize Communication Instruction
2.2. Initialize Communication Instruction
Activation Flag
2.3. Error code storage area initialization
2.4. Setting the ExecPMCR Instruction Input
Variable
2.5. Receive data storage area initialization
2.6. End initialization process
3.1. Set Receive processing status and
activation flag judgement
3.2. Receive Instruction activation
-
Content
Start communication process.
Set
the
parameters
communication
(ExecPMCR Instruction) and clear the
Receive data storage area.
Execute ExecPMCR Instruction.
Judge whether the execution result is
normal or abnormal.
Execute error processing when a
nonexistent processing number is
detected.
of
the
command
59
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