Siemens LOGO! 24 User Manual

125
LOGO! Manual
A5E00067781 01
Timing diagram
T
a
starts
T
H
Q
Trig
T
L
Description of function
If the state of the input Trg changes from 0 to 1, the current
time T
a
starts and the output Q is set to 1.
If the time T
a
reaches the time T
H
, the output Q is reset
to 0.
In the event of a power failure, the elapsed time is reset.
If the state 0 changes to 1 at the input Trg, and 1 remains
set at least for the time T
L
, the permanent light function is
activated and the output Q is switched on permanently.
If the input Trg is switched again, T
H
is reset and the output
Q is switched off.
LOGO! Functions

Siemens LOGO! 24 Specifications

General

Dimensions	90 x 72 x 55 mm
Relay Outputs	4
Programming	LOGO! Soft Comfort
Mounting Type	DIN Rail
Protection Class	IP20
Inputs	8 Digital
Outputs	4 Relay
Output Current	10 A per relay output
Operating Temperature	0 ... 55 °C
Display	LCD with backlight