Siemens S5-135U/155U - Page 352

8-40
System Manual
C79000-G8576-C199-06
Connection for supply voltage,
jumpers and sensor supply in groups of 2 bytes
(16 inputs each)
Byte 0 + 1
Byte 2 + 3
1L+ Terminal 3
2L+ Terminal 24
1LH+ Terminal 12
2LH+ Terminal 33
1LH– Terminal 22
2LH– Terminal 23
y
Type of
Sensor
NAMUR Connect to L+
(24 V supply)
Output for sensor
supply
Jumper to L–
Terminal 21
CMOS open Connect to 5 to 15 V
supply
open
TTL open Connect to 5 V supply open
The types of sensor can be arbitrarily mixed in groups of 16 inputs.
With CMOS TTL sensors, open inputs are at logic 1 (LED is lit).
Di
g
ital Input/Output Modules