Carries 8 digital inputs and 8 outputs onto an RS-485 line

An RS-485 I/O module with 8 digital inputs and 8 digital outputs. It passes field signals to the controller over ModBus RTU and ModBus ASCII, and separates the input side with 5000 VDC isolation.

8DIDigital Input

8DODigital Output

RS-485Interface

1200 ~ 115200 bpsBaud Rate

10 ~ 30 VDCSupply Voltage

-20 ~ +75 °COperating Temperature

Key features

ProtocolIt speaks ModBus RTU as well as ModBus ASCII.

Serial settingsIt takes 8 data bits, odd/even/none parity and 1 or 2 stop bits.

Input isolationThe input side stands apart from the rest of the module at 5000 VDC isolation voltage.

Output frequencyThe outputs switch up to 10 Hz.

ProtectionIt stands guarded against surge, EFT and ESD pulses.

Status indicatorsLED lamps show the state of each input and output, and a dual watchdog timer keeps the module running.

The 76.4 × 118.2 × 38.5 mm housing weighs 0.3 kg. The free ATC Utility software configures the module, and the warranty runs for 2 years.

Technical Specifications

Digital Input

8DI

Digital Output

8DO (Source Output)

Input Isolation Voltage

5000 VDC

Interface

RS-485

Supported Protocols

ModBus RTU / ModBus ASCII

Baud Rate

1200bps ~ 115200bps

Data Bit

8 bits

Parity

Odd, Even, None

Stop Bits

1, 2 bit

LED Indicators

I/O state

Watchdog Timer

Dual watchdog timer

Protection

Surge, EFT and ESD protection

Output Frequency

10Hz

Operation Voltage

10~30VDC / 24VAC

Operating Temperature

-20 ~ +75 °C

Dimensions

76.4*118.2*38.5 mm

Weight

0.3kg

Configuration Software

Free PC configuration software "ATC Utility"

Warranty

2 Years