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Item: 266613518539
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Item must be returned within:30 Days
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Waveshare:Waveshare
Type:Relay Module
DESCRIPTION Industrial Modbus RTU 8-Ch Relay Module (D) With Digital Input And RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power SupplyRS485 8-Ch Relay Module (D)Modbus RTU Protocol, Multi Isolation Protection Circuits, Safe & Stable & Reliable Features At A GlanceThis is an industrial 8-ch relay module controlled via RS485 bus, with 8-ch digital input, 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 (D) 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.Configurable device address (1~255), multi devices can be cascaded on RS485 busFeatures 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 automaticallyOnboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminalOnboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumptionOnboard 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-electrostaticOnboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuitAdopts dedicated relay driver chip, with built-in flyback diode protection, for stronger and more stable driving abilitySupports passive and active digital input, with bi-directional optocoupler isolation, built in debouncing algorithm. The relay supports digital input linkage control or toggle controlReverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connectionHigh quality relay, contact rating: ≤10A 250VAC/30VDCRail-mounted ABS plastic enclosure, easy to install, safe to useMultiple LEDs for indicating the MCU status and signal transceiving statusSpecificationsPOWER SUPPLY7~36VCOMMUNICATION INTERFACERS485BAUDRATE4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000DEFAULT COMMUNICATION FORMAT9600, N, 8, 1RELAY CHANNELS8CONTACT FORM1NO 1NCCONTACT RATING≤10A 250VAC/30VDCDIGITAL INPUT8DI, 5~36V, passive / active input (NPN or PNP), built-in bi-directional optocoupler isolationCOMMUNICATION PROTOCOLStandard Modbus RTU protocolRS485 ADDRESS1~255LED INDICATORSSTA: MCU indicator, keeps flashing when the MCU normally workingTXD: TX indicator, lights up when sending dataRXD: RX indicator, lights up when receiving dataPrimary FunctionSupports Reading Digital Input By Sending Modbus RTU Protocol Commands Via RS485 For Relay Output ControlHardware AnalysisMultiple Protections For Safer And More Reliable UseDigital InputSupports Passive (Dry Contact) And Active (Wet Contact) Digital Input, With Bi-Directional Optocoupler IsolationInterfaces & IndicatorsWith Multiple LED Indicators, Easy To Monitor The Operating StatusMultiple Modes For Various Automation ScenariosSupports Multiple Relay Control Modes, Each Channel Supports IndependentControl Mode Setting RS485 CommunicationConfigurable Device Address (1~255), Multi Devices Can Be Cascaded On RS485 BusIn Case Of Many Devices Are Cascaded, Or Communication Distance Is Quite Long, It Is Necessary To Use RS485 Repeatersfor reference only, the USB TO RS232/485/TTL converter is Not includedRelay ConnectionContact Rating Of The Onboard Relay Up To 10A 250VAC/30VDCDirectly Controlling 220VAC Home Appliances, Or Devices Below 30VDCEnclosure DesignRail-Mounted ABS Plastic Enclosure, Easy To Install, Safe To UseApplicationsProduct ShowOutline DimensionsResources & ServicesWIKI: www.waveshare.com/wiki/Modbus_RTU_Relay_(D)* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.Selection GuidePRODUCTMODBUS POE ETH RELAYMODBUS RTU RELAYMODBUS RTU RELAY (B)MODBUS RTU RELAY (D)MODBUS RTU RELAY 16CHMODBUS RTU RELAY 32CH COMMUNICATION PARAMETERSCommunication interfaceEthernet port (PoE support)RS485 portBaud rate-4800，9600，19200，38400，57600，115200，128000，256000 (configurable)Default communication format-9600, N, 8, 1Communications protocolTCP/UDP/MQTTRS485 protocolModbus protocolModbus RTU Protocol or Modbus TCP ProtocolModbus RTU ProtocolDevice addressUnconfigurable, identify the devices by IP address1~255 (configurable, supports cascading multiple devices)CONTROL INTERFACEOutput control (DO)8-ch relay16-ch relay32-ch relayContact form1NO 1NCContact rating≤10A 250VAC/30VDCDIGITAL INPUT-8DI, 5~36V, passive / active input (NPN or PNP), built-in bi-directional optocoupler isolation-OTHERSPower SupplyPoE port, DC 5.5*2.1 power port, or screw terminalDC 5.5*2.1 power port, or screw terminalPower range7~36V wide range5V7~36V wide range5V7~36V wide rangeDimensions145×90×40mm175×90×40mm200×110×60mm300×110×60mmInstallationStandard DIN 35mm rail mounting, wall mounting PACKAGE CONTENT Weight: 0.296 kgThe power supply of this product is not included, it is recommended to purchase 12V power supply if you need it.It is also recommended to purchase USB TO RS232/485/TTL or USB TO RS485 at the same time for easy testing.Modbus RTU Relay (D) x1Screwdriver x1
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