Details
Modbus RTU Protocol, Multi Isolation Protection Circuits, Safe & Stable & Reliable
This product is an industrial 32-ch relay module controlled via RS485 bus, adopts Modbus RTU protocol, built-in protection circuits such as power supply isolation, magnetical isolation, resettable fuse, and TVS diode, etc. It also comes with an ABS case.
The Modbus RTU 32-Ch Relay is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirements.
- Configurable device address (1~255), multi devices can be cascaded on RS485 bus
- Features flash-on, flash-off function, it is possible to turn on the relay for a while and then close it automatically via the command
- Onboard voltage regulator chip, supports 7~36V wide voltage power supply
- Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
- Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
- Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, provides over-current/over-voltage proof, lightningproof & anti-electrostatic
- Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit
- Onboard dedicated relay driver chip, with built-in freewheeling diode protection, the driving ability is stronger and more stable
- Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection
- High quality relay, contact rating: ≤10A 250VAC/30VDC
- Rail-mounted ABS case, easy to install, safe to use
- 3 LEDs for indicating the MCU status and signal transceiving status
| Operating voltage | 7~36V |
|---|---|
| Communication interface | RS485 |
| baudrate | 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000 |
| Default communication format | 9600, N, 8, 1 |
| Relay channels | 32 |
| Contact form | 1NO 1NC |
| Contact rating | ≤10A 250VAC/30VDC |
| Communication protocol | Standard Modbus RTU protocol |
| RS485 address | 1~255 |
| LED indicators | STA: MCU indicator, keep flashing when the MCU normally working TXD: TX indicator, lights up when sending data RXD: RX indicator, lights up when receiving data |
Multiple protections, more safe and reliable
Rail-mounted ABS protective enclosure, easy to install, safe to use
Configurable device address (1~255), multi devices can be cascaded on RS485 bus
In case of many devices are cascaded, or the communication distance is quite long,
it is necessary to use RS485 repeaters
* for reference only, the USB to RS485 is NOT included.
Contact rating of the onboard relay up to 10A 250VAC/30VDC
Directly controlling 220VAC home appliances, or devices below 30VDC
| product | Modbus POE ETH Relay | Modbus POE ETH Relay (B) | Modbus POE ETH Relay 30CH | Modbus RTU Relay | Modbus RTU Relay (B) | Modbus RTU Relay (D) | Modbus RTU Relay 16CH | Modbus RTU Relay 32CH |
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| Communication parameters | ||||||||
| Communication interface | Ethernet port (PoE support) | RS485 port | ||||||
| Baud rate | - | 4800，9600，19200，38400，57600，115200，128000，256000 (configurable) | ||||||
| Default communication format | - | 9600, N, 8, 1 | ||||||
| Communications protocol | TCP/UDP/MQTT | RS485 protocol | ||||||
| Modbus protocol | Modbus RTU Protocol or Modbus TCP Protocol | Modbus RTU Protocol | ||||||
| Device address | Unconfigurable, identify the devices by IP address | 1~255 (configurable, supports cascading multiple devices) | ||||||
| control interface | ||||||||
| Output control (DO) | 8-ch relay | 30-ch relay | 8-ch relay | 16-ch relay | 32-ch relay | |||
| Contact form | 1NO 1NC | |||||||
| Contact rating | ≤10A 250VAC/30VDC | |||||||
| DIGITAL INPUT | - | 8DI, 5~36V, passive / active input (NPN or PNP), built-in bi-directional optocoupler isolation | - | 8DI, 5~36V, passive / active input (NPN or PNP), built-in bi-directional optocoupler isolation | - | |||
| Others | ||||||||
| Power Supply | PoE port, DC 5.5*2.1 power port, or screw terminal | DC 5.5*2.1 power port, or screw terminal | ||||||
| Power range | 7~36V wide range | 5V | 7~36V wide range | 5V | 7~36V wide range | |||
| Dimensions | 145×90×40mm | 175×90×40mm | 300×110×60mm | 145×90×40mm | 175×90×40mm | 200×110×60mm | 300×110×60mm | |
| Installation | Standard DIN 35mm rail mounting, wall mounting | |||||||
Weight: 0.767 kg
Quick Overview
- Modbus RTU Relay 32CH x1
