Model

EM223 

4 inputs/outputs

EM223 

4 inputs/outputs Relay

EM223 

8 inputs/outputs

Product  Description

4DI,24VDC/4DO,24VDC

Transistor;

Optical isolation 

with high immunity

4DI,24VDC,/4DO, 

24 VDC/250VAC,

Relay isolation 

with high immunity.

8DI,24VDC/8DO,

24VDC

Transistor;

Optical isolation 

with high immunity

From bus current consumption

40mA

40mA

80mA

Power loss

2W

2W

3W

Input Features

Number of digital inputs

4

4

8

Input voltage

24V DC,4mA

24V DC,4mA

24V DC,4mA

Logic 0 signal 

0~5V DC

0~5V DC

0~5V DC

Logic 1 signal 

15~30V DC

15~30V DC

15~30V DC

Maximum Input Delay Time

4.5ms

4.5ms

4.5ms

Signal input type·

PNP/NPN

PNP/NPN

PNP/NPN

Optical isolation(Galvanic) 

(field to logic) 

500 VAC for 1 minute

500 VAC for 1 minute

500 VAC for 1 minute

Cable Length (Shielded)

500m

500m

500m

Cable Length (unshielded)

300m

300m

300m

output Features

Number of digital outputs

4

4

8

Output type

Transistor

Relay

Transistor

Isolation

Optical coupler

Relay

Optical coupler

Output voltage

24V DC

24V DC or 250V AC

24V DC

Output voltage range

20.4~28.8V DC

5~30V DC/20~250V AC

20.4~28.8V DC

Outp