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MELSEC-Q
7 PROGRAMMING FOR EXECUTING THE MASTER FUNCTION
(2) Program example
Reads master function
communication status.
Executes Get Attribute
if Master Function Comm.
Status is C0
H
or 40
H
.
Get Attribute
Node No.3, Class ID = 1
Instance ID = 1
Attribute ID = 7
Writes message comm.
command to buffer memory.
Sets Message Comm.
Request to on.
Gets byte length
of attribute data.
Calculates byte length
of attribute data.
Reads attribute data.
Sets Message Comm.
Request to off.
Error handling program
Содержание QJ71DN91
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