Siemens S5-135U/155U appendix Namur Cmos TTL

Digital Input/Output Modules

Connection for supply voltage,

jumpers and sensor supply in groups of 2 bytes (16 inputs each)

Byte 0 + 1

Byte 2 + 3

Type of

Sensor

1L+ Terminal 3

2L+ Terminal 24

1LH+ Terminal 12 2LH+ Terminal 33

1LH± Terminal 22 2LH± Terminal 23

NAMUR

CMOS

TTL

Connect to L+	Output for sensor	Jumper to L±
(24 V supply)	supply	Terminal 21
open	Connect to 5 to 15 V	open
	supply
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).

8-40	System Manual
	C79000-G8576-C199-06