Siemens SIMATIC MV540 H - Reset Command

Process interfacing via an automation system (PLC, PC)
9.6 Control via TCP/IP and RS232
SIMATIC MV500
Operating Instructions, 06/2018, C79000-G8976-C494-01
159
Example sequence
Table 9- 60 Example sequence of a command execution
Send
(string)
Receive
(string)
Description
MDIH
--
Set DISA bit.
MGST -- Status query
If there is no error, the saving process can be
started.
-- RGST ...
MT05
--
Start the save procedure.
--
RTRDY
Wait for acknowledgment.
T -- Trigger with the standard trigger text
Trigger source = Control source.
Note: Triggering is also possible via DI/DQ, for
example.
...
...
Cyclic status query;
recommended time interval: 1 s.
If the optical reader is in processing mode with
program no. 05, the saving process was success-
ful.
If an error occurred, the program could not be
saved (e.g. no code in the image).
If the optical reader is not in processing mode or
there is no group error, the saving process has
not finished.
MGST
--
-- RGST ...
...
...
...
9.6.8
Reset command
This command acknowledges an error or cancels "Save program with external trigger".
String
"MRES" (Machine command RESet)
This command returns no response string.
Send "MRESMGST" to get acknowledgment.
If "Save program with external trigger" is canceled with the reset command, the optical
reader will briefly be in an error state (error in sequence). The error state is automatically quit
or acknowledged.