Siemens FM 458-1 DP Manual page 77

Closed-loop control blocks
Y Output quantity of the integrator
R=S=H=0 → Y=Y
QP Positive overflow
QP=1 → Y + X ≥ MOD (Y=Y-MOD)
QN Negative overflow
QN=1 → Y+X < 0 (Y=Y+MOD)
Error status of the block
YF
YF=0 no error, YF > 0 coded error output
Coded error output
Configuringdata
6-2
+X∗NM/DN
old
The error status is output in a coded form at output YF of the modulo
integrator INT_M. The last error event is always displayed.
Value Significance
1
2
MOD >
4 Division overflow, positive
8 Division overflow, negative
16 Overflow, rest positive
32 Overflow, rest negative
Computation time [µs]
Can be inserted online
Can be configured in
Executed in
Special features
30
or < 1
FM 458-1 DP 19,8
Yes
Interrupt tasks
Cyclic tasks
Initialization mode
Normal mode
-
(default: 0)
(default: 0)
(default: 0)
(default: 0)
Function Blocks - FM 458-1 DP
Edition 12.2003