Modbus Protocol

1. Product Description (4-20MA)

• 8-channel 0-20MA current analog input
• RS485 MODBUS RTU standard communication protocol
• Compatible with configuration software, PLC, or industrial touch panel
• Communication circuit for thunder protection and interference immunity
• Ideal for signal collection and control in industrial environments

2. Specifications (4-20MA)

• Working Voltage: DC 7-25V (options: 9V, 12V, 24V)
• Working Current: 8-50MA
• 8-channel current input, range per channel: 0~20MA/4-20MA
• RS485 communication isolation protection: 3000VDC
• Standard MODBUS RTU commands (Function Codes: 06/16 Write, 04/03 Read)
• Baud Rates: 1200, 2400, 4800, 9600 (default), 19200, 38400, 57600, 115200
• Parity Bits: None (default) / Even / Odd
• Installation Method: Standard DIN rail installation
• Dimensions: 125×70×30mm
• Weight: 114 grams

3. Interface Definition (4-20MA)

• VCC: Power input
• GND: Power input-
• AI1+: Current input channels 1 & 2
• AI2+: Current input channels 3 & 4
• AI3+: Current input channels 5 & 6
• AI4+: Current input channels 7 & 8
• A+: RS485 signal A
• B-: RS485 signal B-

1. Product Description (0-10V)

• 8-channel analog input
• RS485 MODBUS RTU standard communication protocol
• Compatible with configuration software, PLC, or industrial touch panel
• Communication circuit for thunder protection and interference immunity
• Ideal for signal collection and control in industrial environments

2. Specifications (0-10V)

• Working Voltage: DC 7-25V (options: 9V, 12V, 24V)
• Working Current: 8-50MA
• 8-channel voltage inputs, range per channel: 0~10V
• RS485 communication isolation protection: 3000VDC
• Standard MODBUS RTU commands (Function Codes: 06/16 Write, 04/03 Read)
• Baud Rates: 1200, 2400, 4800, 9600 (default), 19200, 38400, 57600, 115200
• Parity Bits: None (default) / Even / Odd
• Installation Method: Standard DIN rail installation
• Dimensions: 125×70×30mm
• Weight: 114 grams

3. Interface Definition (0-10V)

• VCC: Power input
• GND: Power input-
• VI1+: Voltage input channels 1 & 2
• VI2+: Voltage input channels 3 & 4
• VI3+: Voltage input channels 5 & 6
• VI4+: Voltage input channels 7 & 8
• A+: RS485 signal A
• B-: RS485 signal B-

Application

• PLC Output Expansion Board
• Smart Home, Home Automation, Wiser Home
• PTZ CCTV Camera
• Security Monitoring
• Identification System
• Motor FW & BW
• Automatic Curtain Control
• 4-20MA Current Instrumentation
• 0-10V Voltage Instrumentation

Package Includes:

• 1 x Module