Siemens SIMATIC S7-200 - Example of On-Delay Timer for LAD and FBD; Example of Off-Delay Timer for LAD and FBD

IEC 1131-3 Instructions
10-13
S7-200 Programmable Controller System Manual
A5E00066097-02
Note
You cannot share the same timer numbers for TOF, TP, and TON. For example,
you cannot have both a TON T32 and a TOF T32.
On-Delay Timer Example
LAD
Input
Input
Timing Diagram
VW100 (current)
Output (Q)
PT3
IN
TON
T33
PT = 3
FBD
PT+3
IN
TON
Q
ET
Q
ET %VW100
Output
%VW100
Output
Input
PT = 3
%T33
Figure 10-3 Example of On-Delay Timer for LAD and FBD
Off-Delay Timer Example
LAD
Input
Timing Diagram
PT3
IN
TOF
T33
FBD
PT
+3
IN
TOF
Q
ET
Q
ET %VW100
Output
%VW100
Output
Input
Input
VW100 (current)
Output (Q)
PT = 3
PT = 3
%T33
Figure 10-4 Example of Off-Delay Timer for LAD and FBD