Siemens SIMATIC S7-200 System Manual page 214

S7-200 Programmable Controller System Manual
Example: SIMATIC Retentive On-Delay Timer
Timing Diagram
200
Network 1
LD
TONR T1, +100
Network 2
LD
=
Network 3
LD
R
I0.0
0.6 s
100 (Current)
60 (Current)
T1 (Current)
T1 (bit), Q0.0
I0.1(Reset)
//10 ms TONR timer T1 times out at
//PT=(100 x 10 ms=1s)
I0.0
//T1 bit is controlled by timer T1.
//Turns Q0.0 on after the timer accumulates a total
//of 1 second
T1
Q0.0
//TONR timers must be reset by a Reset instruction
//with a T address.
//Resets timer T1 (current and bit) when I0.1 is on.
I0.1
T1, 1
0.4 s 1 s