WTD478C Modbus-RTU Bus Protocol Module

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Technical Parameters
Installation size
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product description
8/8 way isolated digital input / output

Analog input parameter

Mode
Intended
Quantity
Lose
Into

number
aisle 8-way isolation / 8-way counting (independent)
Dry contact stand by
Wet joint Support bidirectional: high level: +10V ~ +50V low level: ≤ +3V
Input frequency 3kHz Max
Isolation voltage 3KV Vdc

Analog output parameter

Mode
Intended
Quantity
Lose
Out

number
aisle 8-way isolated / 8-channel PWM
Types of Leakage type
Mode Open collector (50Vdc)
Load current 500mA Max
Output frequency 1kHz Max
Isolation voltage 3KV Vdc

Motherboard parameters

Master
Board

number
operating system FreeRTOS
Processor STM32 (Cortex-M3)
Processor speed 72MHz
LED indicator Power light, communication light, channel light
Watchdog System watchdog, communication watchdog (programmable)
Protective function Overcurrent, overvoltage, overtemperature, anti-reverse
Communication Interface RS485 terminal block
Upgrade program interface Built-in MiniUSB
letter of agreement Modbus-RTU/ASCII

Institutional and environmental parameters

Machine
Structure
And
Ring


number
shell material ABS plastic
Dimensions 98×106×41mm
Rail support DIN35mm
power input 10 to 48V (24Vdc rated)
Power consumption ~0.4W (24Vdc)
Operating temperature -20 to 70 ° C
Storage temperature -30~80°C
Humidity 10 to 90% RH (non-condensing)
Weight ~0.26Kg
Certification and testing EMC (EN61000-6-2/4), safety regulations
Parameter setting software WTDUtility
WTD478C Modbus-RTU Bus Protocol Module Dimensions

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WTD4 system Modbus-RTU bus protocol module [User Manual]

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