Process interfacing via an automation system (PLC, PC)
9.4 Control with FB 79
SIMATIC MV500
Operating Instructions, 06/2018, C79000-G8976-C494-01
143
Parameter
Declaration Data type
Address
(instance DB)
Default
Description
DONE
OUTPUT
BOOL
22.1
FALSE
DONE = TRUE:
Job was completed without errors.
With read jobs ("COMMAND = W#16#0081 ...
008F"), this simply means that the transfer
between the optical reader and FB (CPU) was
error-free.
To find out whether the DMC processing was
successful, you will need to process bits
"READ" (bit 3), "MATCH" (bit 4) and "N_OK"
(bit 5) in the status byte of the optical reader.
ERROR
OUTPUT
BOOL
22.2
FALSE
ERROR = TRUE:
An error has occurred.
ERRCODE
OUTPUT
DWORD
24.0
DW#16#
00000000
Error information:
•
DW#16#0000 0000: No error
•
DW#16#0000 wxyz: Warning
•
DW#16#0001 wxyz: Internal FB error
•
DW#16#0002 wxyz: Optical reader error
(see table below for error information)
STATE
OUTPUT
WORD
28.0
W#16#0000
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.
CODE_
OUT
OUTPUT
BYTE
30.0
B#16#00
Number of the program currently selected by
the optical reader
LENGTH
OUTPUT
WORD
32.0
W#16#0000
Length of the result string in bytes
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 ...