Industrial Modbus RTU mixed input and output module, multiple isolation protection circuits, supports voltage and current acquisition, Rail-Mount PC flame-retardant protective case, DC 7V ~ 36V Wide Voltage Power Supply

Industrial Modbus RTU mixed

input and output module

2-ch Relay Outputs, 2-ch Digital Inputs, 2-ch Analog Current Outputs,

2-ch Analog Current/Voltage Inputs

Modbus RTU Protocol | Multiple protection circuits | 7V ~ 36V Wide Voltage

Features:

The Modbus RTU Module (A) is an industrial standard mixed input and output module, supports 2-ch relay outputs, 2-ch digital inputs, 2-ch analog current outputs, and 2-ch analog current/voltage inputs. Adopts Modbus RTU protocol with built-in protection circuits such as power isolation, magnetical isolation, resettable fuse, and TVS.

• Supports 7V ~ 36V wide voltage power supply, configurable device address (1 ~ 255), multi devices can be cascaded on RS485 bus
• Supports power isolation and magnetical isolation, enabling power and signal dual isolation for communication, with high reliability and strong anti-interference capability
• Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, provides over-current/over-voltage proof, lightningproof & ESD protection
• Supports passive and active digital input, with bi-directional optocoupler isolation, built-in debouncing algorithm. The relays support digital input linkage control or toggle control
• Supports 12-bit high-precision acquisition with multiple range input modes, supports single-ended/differential input, supports voltage and current simultaneous acquisition
• Adopts high-precision resistors and zero-drift high-precision operational amplifier for more accurate data output or acquisition
• High quality relay, contact rating: ≤10A 250V AC or ≤10A 30V DC
• Rail-mount PC flame-retardant case design, easy to install and safer to use
• 3 × LEDs for indicating the MCU status and signal transceiving status

Specifications:

• Power Supply: 7V ~ 36V
• Communication Interface: RS485
• Baud Rate: 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000
• Default Communication Format: 9600, N, 8, 1
• Modbus Protocol: Standard Modbus RTU protocol
• RS485 Address: 1 ~ 255
• Relay Output
• Relay Channels: 2-ch
• Contact Form: 1 NO, 1 NC
• Contact Rating: ≤10A 250V AC or ≤10A 30V DC
• Analog Output
• Output Mode: 2-ch current output
• Resolution: 12-bit, 1μA
• Range: 0 ~ 20mA
• Output Accuracy: ±0.03mA
• Digital Input
• Digital Input Channels: 2-ch
• Active Input: 5V ~ 36V DC
• Input Type: Passive input / Active input (NPN or PNP Type)
• Isolation Type: Bi-directional optocoupler
• Analog Input
• Analog Input Channels: 2-ch
• Range: 0 ~ 10V / 2 ~ 10V, 0 ~ 20mA / 4 ~ 20mA
• Sampling Accuracy: 12-bit resolution, accuracy ≤3‰
• Data Update Rate: 31Hz
• Current Sampling Resistor: 249Ω
• LED Indicators
• STA: MCU indicator, keeps flashing when the MCU normally working
• TXD: TX indicator, lights up when sending data
• RXD: RX indicator, lights up when receiving data

Primary function:

• Supports sending Modbus RTU protocol commands via RS485
• for digital and analog input/output

Industrial Grade Isolated Protection

Onboard power and signal dual isolation for RS485 communication, provides stable isolation voltage, features high reliability and strong anti-interference performance. Built-in TVS (transient voltage suppression tube) can effectively suppress the surge voltage and transient peak voltage in the circuit, lightningproof & ESD protection. Built-in resettable fuse and protection diode, provides over-current and over-voltage proof, improves shock-proof performance, suitable for industrial environments with high requirement.

Interface introduction:

Relay connection

• Contact rating of the onboard relay up to 10A 250V AC or 10A 30V DC
• Directly controlling 220V AC home appliances, or devices below 30V DC

Industrial High-precision Analog Output

• 2-ch Analog Output, 12-bit High-precision DA Conversion

Digital Input

• Supports passive (dry contact) and active (wet contact) digital input,
• with bi-directional optocoupler isolation

Supports voltage/current acquisition, Wider Measurement range

Onboard analog acquisition interfaces, voltage/current acquisition is switchable via jumper. Multiple Ranges Configurable via Software

Interfaces & Indicators

• With Multiple LED Indicators, Easy To Monitor The Operating Status

Rail-Mount Support

Rail-mount PC flame-retardant case, easy to install, and safer to use

Dimensions:

Documentations:

• Wiki

Package Includes:

• 1 x Modbus RTU Module (A) 
• 1 x Screwdriver