Process interfacing via an automation system (PLC, PC)
9.4 Control with FB 79
SIMATIC MV500
126
Operating Instructions, 06/2018, C79000-G8976-C494-01
9.4
Control with FB 79
Principle of data transmission via PROFINET IO
The following figure shows the interfaces of the optical reader that are relevant for data
transmission via PROFINET IO (FB 79).
Figure 9-3
Principle of data transmission via PROFINET IO (FB79)
Note
Relevant bytes of the user data
Bytes 1 to 31 of the "Send" user data interface are relevant. Only bytes 1 to 4 of the
"Receive" user data interface are relevant.
9.4.1
Assignment of the interfaces relevant to PROFINET IO
Control/status byte
Table 9- 33 Assignment of control bytes (input signals)
Bit
Signal
Description
0
DISA
Disable
Disables manual keyboard input, program selection and program sav-
ing, error acknowledgment, starting the optical reader
1
SEL0
1)
Select 0
Program selection bit 0
Содержание SIMATIC MV540 H
Страница 24: ...Description 1 7 Functional description SIMATIC MV500 24 Operating Instructions 06 2018 C79000 G8976 C494 01 ...
Страница 194: ...Service and maintenance 10 3 Replacing a module SIMATIC MV500 194 Operating Instructions 06 2018 C79000 G8976 C494 01 ...
Страница 232: ...Appendix A 3 Alternative user interfaces SIMATIC MV500 232 Operating Instructions 06 2018 C79000 G8976 C494 01 ...
Страница 236: ...List of abbreviations SIMATIC MV500 236 Operating Instructions 06 2018 C79000 G8976 C494 01 ...
Страница 238: ...Service Support SIMATIC MV500 238 Operating Instructions 06 2018 C79000 G8976 C494 01 ...