Process interfacing via an automation system (PLC, PC)
10.4 Control with FB79
SIMATIC MV420 / SIMATIC MV440
290 Operating Instructions, 04/2013, A5E02371045-06
Sequence with the read jobs (COMMAND = W#16#0081 to W#16#008F)
Meaning of the COMMAND parameter with read jobs.
Value (W#16#...) Meaning
0081 Output result string
0082 Output absolute quality characteristics
0083 Output absolute quality characteristics and output result string
0084 Output quality characteristics as classes
0085 Output quality characteristics as classes and output result string
0086 Output quality characteristics as classes and in absolute format
0087 Output quality characteristics as classes and in absolute format and output result string
0088 Output code position
0089 Output code position and result string
008A Output code position and absolute quality characteristics
008B Output code position and absolute quality characteristics and output result string
008C Output code position and quality characteristics as classes
008D Output code position and quality characteristics as classes and output result string
008E Output code position and quality characteristics as classes and in absolute format
008F Output code position and quality characteristics as classes and in absolute format and output result
string
The read jobs can only be sent when the reader is not in the RUN status (see also the status
table following the parameter table).
In contrast to all other jobs, the read jobs are "permanent jobs". This means that the ACTIVE
parameter retains the value TRUE even after fetching the current read result and/or the
current position and/or the quality characteristics from the device.
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