Beschreibung
This is a Waveshare (17658) industrial 8-ch relay module controlled via RS485 bus, utilizing Modbus RTU protocol. It features embedded protection circuits such as power isolation, magnetical isolation, and TVS diode, etc. It also comes with an ABS enclosure. The Modbus RTU 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 requirement.
Features:
Specifications:
Features:
- Configurable device address (1~255), multi devices can be cascaded on RS485 bus
- Features flash-on, flash-off function, by passing argument to the command, it is possible to turn on the relay for a while and then close it automatically
- 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
- Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection
- High quality relay, contact rating: ≤10A 250VAC/30VDC
- Rail-mounted ABS plastic enclosure, easy to install, safe to use
- 3 LEDs for indicating the MCU status and signal transceiving status
Specifications:
- Product: Modbus RTU Relay
- Power Supply: 5 V
- Communication Interface: RS485
- Baudrate: 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000
- Default Communication Format: 9600, N, 8, 1
- Relay Channels: 8
- Contact Form: 1NO 1NC
- Contact Rating: ≤ 10 A 250 VAC / 30 VDC
- Communication Protocol: Standard Modbus RTU protocol
- RS485 Address: 1 ~ 255
- 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
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