Siemens SIMATIC FM 453 Manual page 120

Programming the FM 453
Error Evaluation Errors which occur are indicated in the binary result (BIE = 0).
Possible errors are:
Data transfer error during communication with SFC 59 "RD_REC". The er-
ror is returned in the output parameter RET_VAL (see reference manual Sys-
tem Software for S7-300/400; System and Standard Functions).
Example Call An example call is shown below in OB 1
in OB 1
STL
U DB_FM.CHECKBACK_SIGNALS.MSR_DONE;
FP FLANKENMERKER_MESSUNG_BEENDET;
S "ANSTOSS_LESEFKT";
CALL MSRMENT(
DB_NO := W#16#1,
RET_VAL := FEHLERCODE_LESEN,
IN_MSR := "ANSTOSS_LESEFKT");
U "ANSTOSS_LESEFKT";
SPB NWE;
UN BIE;
S FEHLER_LESEFKT;
NWE: NOP 0;
Example Call
An example call is shown below in OB 40
in OB 40
STL
...
S MW_LESEN;
CALL MSRMENT(
DB_NO
RET_VAL
IN_MSR
UN BIE;
S FEHLER_LESEFKT;
...
Note
The activation of "measurement" and the generation of the measured values
is described in Section 9.3.10.
6-24
:= W#16#1,
:= FEHLERCODE_LESEN,
:= MW_LESEN);
.
Explanation
// "Measurement completed" checkback
signal
// Edge flag for "Measurement com-
pleted"
// Set initiation parameters
// CALLUP OF FC MSRMENT
// Initiation bit is still set
// Communication error
// Indicate error in Read function
.
Explanation
// Set job
// Call FC for reading measured values
// DB number
// Return value
// Initiation parameter
// Binary result
// Display error on read function
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01