Number of channels per module

8 inputs (24 V DC / 24 V AC)

Distribution of the channels into groups

1 (8 channels per group)

Connections of the channels I0 to I7

Terminals 2 ... 9

Reference potential for the channels I0 to I7

Terminal 1 (plus or negative pole of the process supply voltage, signal name C0 .. 7)

Indication of the input signals

1 yellow LED per channel; the LED is ON when the input signal is high (signal 1). The module is powered through the I/O bus.

Monitoring point of input indicator

LED is part of the input circuitry

Input type according to EN 61131-2

Type 1 source

Type 1 sink

Type 1 AC ¹)

Input signal range

-24 V DC

+24 V DC

24 V AC 50/60 Hz

Signal 0

-5 V ... +3 V

-3 V ... +5 V

0 V AC ... 5 V AC

Undefined signal

-15 V ... -5 V

+5 V ... +15 V

5 V AC ... 14 V AC

Signal 1

-30 V ... -15 V

+15 V ... +30 V

14 V AC ... 27 V AC

Input current per channel

Input voltage 24 V

Typ. 5 mA

Typ. 5 mA r.m.s.

Input voltage 5 V

Typ. 1 mA

Typ. 1 mA r.m.s.

Input voltage 14 V

Typ. 2.7 mA r.m.s.

Input voltage 15 V

> 2.5 mA

Input voltage 27 V

Typ. 5.5 mA r.m.s.

Input voltage 30 V

< 8 mA

Max. permissible leakage current (at 2-wire proximity switches)

1 mA

Typ. 1 mA r.m.s.

Input delay (0->1 or 1->0)

Typ. 8 ms

Input data length

1 byte

Max. cable length

Shielded

500 m

Unshielded

300 m