BOOL (bit field not permitted), BYTE, CHAR, WORD, INT, DWORD, DINT, REAL, DATE,
TOD, TIME, S5TIME, DATE_AND_TIME
The return value contains an error code if an error is detected when the function is being
processed.
Value Description
0000h No error has occurred.
0001h
n The associated value exceeds the maximum length, or
n application memory cannot be accessed (e.g. access to deleted DB). The message will be trans-
ferred.
n The associated value points to the local data area.
0002h Warning: the last unused message acknowledgment memory has been allocated.
8081h The specified EV_ID lies outside of the valid range.
8082h Message loss because your CPU suffers from a lack of resources that are required to generate module
related messages by means of SFCs.
8083h Message loss because a signal of the same type is already available but could not be sent (signal over-
flow).
8084h The triggering signal SIG for messages has the same value for the current and for the preceding SFC
17 / SFC 18 call.
8085h The specified EV_ID has not been registered.
8086h An SFC call for the specified EV_ID is already being processed with a lower priority class.
8087h The value of the message triggering signal was 0 during the first call to the SFC 17, SFC 18.
8088h The specified EV_ID has already been used by another type of SFC that is currently (still) occupying
memory space.
8xyyh General error information
Ä
Chap. 4.2 ‘General and Specific Error Information RET_VAL’ page 66
14.1.15 SFC 19 - ALARM_SC - Acknowledgement state last Alarm
The SFC 19 ALARM_SC can be used to:
n determine the acknowledgement status of the last SFC 17-entering-state message
and the status of the message triggering signal during the last SFC 17 ALARM_SQ
call
n the status of the message triggering signal during the last SFC 18 ALARM_S call.
The predefined message number identifies the message and/or the signal.
The SFC 19 accesses temporary memory that was allocated to the SFC 17 or SFC 18.
RET_VAL (Return value)
Description
Parameters
VIPA SPEED7
Integrated Standard
System Functions > SFC 19 - ALARM_SC - Acknowledgement state last Alarm
HB00 | OPL_SP7 | Operation list | en | 18-30 663
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