Siemens SIMATIC MV500 Operating Instructions Manual page 174

Process interfacing via an automation system (PLC, PC)
9.4 Control with FB 79
Table 9- 36
Byte
0
1
2
3
4
5
...
31
Data ID of the requested data
The "4 Data ID of the supplied data" byte defines the data to be read. The data ID can have the
following values:
Table 9- 37
ID (B#16#)
09
81
82
83
84
85
86
87
88
89
8A
8B
8C
8D
8E
8F
174
Receive
Description
Reserved
Consecutive number of the current data packet received correctly by the I/O controller
Reserved
Reserved
Data ID of the requested data
Reserved
...
Reserved
Data ID of the requested data
Description
User data byte 1: Output the program number selected on the optical reader.
User data byte 2: If the "DISA" bit is set, it indicates whether a user who has the
right to override the "DISA" signal is logged in via the WBM:
• 00H: "Take control" is enabled,
• 01H: "Take control" is disabled.
Result string
Quality characteristics
Quality characteristics as absolute values and result string
Quality characteristics in classes
Quality characteristics in classes and result string
Quality characteristics in classes and absolute quality characteristics
Quality characteristics in classes, absolute quality characteristics and result
string
Position of the data matrix code
Position and result string
Position and absolute quality characteristics
Position, quality characteristics as absolute values and result string
Position and quality characteristics in classes
Position, quality characteristics in classes and result string
Position, quality characteristics in classes and absolute quality characteristics
Position, quality characteristics in classes, absolute quality characteristics and
result string
Operating Instructions, 03/2021, C79000-G8976-C494-05
SIMATIC MV500