Siemens SIMATIC FM 453 Manual page 117

Fig. 6-3
Example Call
An example call is shown below for FC DIAG_RD
in OB 82
STL
...
S DIAG_READ;
CALL DIAG_INF(
DB_NO := W#16#1,
RET_VAL := FEHLERCODE_LESEN,
IN_DIAG := DIAG_READ);
UN BIE;
S FEHLER_LESEFKT;
...
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
Byte.Bit: 0.0
Module distur-
bance
Byte.Bit: 0.2
Byte.Bit: 0.1
External
internal
error
errors
Byte.Bit: 2.1 – 4
Byte.Bit: 3.2 – 6
Evaluation of Diagnostic Information
Explanation
// Initiate read function
// Call diagnostic information FC
// DB number
// Return value
// Initiate reading
// Binary result
// Error on initialization
Programming the FM 453
Byte.Bit: 0.3
External
channel error
Byte.Bit: Byte.Bit:
8.0...7 10.0...7
Channel 1 Channel 2
.
Byte.Bit:
12.0...7
Channel 3
6-21