Process interfacing via an automation system (PLC, PC)
9.4 Control with FB 79
SIMATIC MV500
188 Operating Instructions, 03/2021, C79000-G8976-C494-05
Parameter Declaration Data type Address
Default Description
Operating state of the optical reader:
• W#16#0000: Status not up to date
• W#16#0001: RUN
(processing mode with output of the result
string), in other words, the "IN_OP" and
"RDY" bits in the status byte are set.
• W#16#0002: STOP
including Save program and Adjustment
mode, i.e. the "IN_OP" bit in the status
byte is set, but the "RDY" bit is not.
• W#16#0003: ERROR
The "IN_OP" bit in the status byte is not
set.
Number of the program currently selected by
the optical reader
Length of the result string in bytes
Table 9- 45 Possible values of the "COMMAND" parameter
Cancel current job or no job
Output the number of the program currently selected on the optical reader
Output the current operating state of the optical reader
Reset DISA control signal
Output the (possibly modified) result string
Output absolute quality characteristics
Output absolute quality characteristics and output result string
Output quality characteristics as classes
Output quality characteristics as classes and output result string
Output quality characteristics as classes and in absolute format
Output quality characteristics as classes and in absolute format and output result
string
Output code position and result string
Output code position and output absolute quality characteristics
Output absolute code position and quality characteristics and output result string
Output code position and quality characteristics as classes
Output code position and quality characteristics as classes and output result string
Output code position and quality characteristics as classes and in absolute format
Output code position and quality characteristics as classes and in absolute format
and output result string
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