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technical parameters



order number

UN 288-1ST20-0AA0

Dimensions W x H x D (mm)

90   x 100 x 81

Current supply (24 V DC)

300 mA max

Digital input current consumption (24 V DC)

4 mA per input used

CPU characteristics

user memory

24KB program memory/8KB data memory/10KB retentive memory

Onboard digital I/O

12 points input/8 points output

module extension

Up to 6 expansion modules

Signal Board Expansion

Up to 1 signal board

high-speed counter

6 total

Single phase: 6 channels 200 KHz

AB phase: 4 channels 100 KHz


number of ports

Ethernet: 1

Serial Port: 1 (RS485)

Expansion port: optional 485 BD board


Serial port: 1 connection, Ethernet port: 1




Ethernet: Total number of client, server connections 6

power input

voltage range

20.4   ~ 28.8 V DC

Power Output

voltage range

20.4   ~ 28.8 V DC

Rated output current (max)

300 mA

digital input

Enter the number of points




Rated voltage

Normal DI point: 24 V DC at 4 mA, rated High-speed DI point: 24 V DC at 6.5 mA, rated

allowable continuous voltage

30 V DC max

Logic 1 signal (minimum)

I0.0 - I0.3: 4 VDC at 12.75 mA I0.6
    - I1.1: 15 VDC at 3.7 mA
    Other: 15 VDC at 2.5 mA

Logic 0 signal (maximum)

I0.0-I0.3: 1VDC at 1mA
    Other inputs: 5VDC at 1mA

filter time

Individually selectable for each channel (points I0.0 to I1.3): 0.2, 0.4, 0.8, 1.6, 3.2,
    6.4 and 12.8µs 0.2, 0.4, 0.8, 1.6, 3.2,
    6.4 and 12.8ms

digital output

output points



Solid State - MOSFET (Source)

voltage range

20.4   ~ 28.8 V DC

Rated current per

0.5   A

point (max)

Side View

Dimensions (mm)

Wiring Diagram

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