GW-7433D-G # Átjáró/Gateway/CANopen Master/Modbus TCP/RTU/RS232, ICP DAS
GW-7433D-G CR # Modbus TCP server & Modbus RTU slave to CANopen master Gateway (RoHS)
The GW-7433D is a solution that provides a communication transformation between CANopen protocol and Modbus/TCP & RTU protocol. It solves a mission-critical problem, and connecting an existed CANopen network with Ethernet-base master device as long as this master device supports Modbus/TCP protocol. It enables CANopen networks to be coupled together with the Internet/Ethernet, whereby remote monitoring and controlling is achieved. For CANopen network, the GW-7433D is a CANopen master device. It supports PDO and SDO functions to communicate with slave devices. From the view of Modbus TCP & RTU network, GW-7433D plays a Modbus TCP server or Modbus RTU slave role. It can receive the commands from Modbus TCP client or Modbus RTU master, and process the commands to reply or send the related CANopen data. We provide utility software for users to configure the parameters of CANopen slaves to GW-7433D. When GW-7433D boots up, it will collect the necessary information from all slaves which are predefined in the GW-7433D by using utility. The following figure shows the application architecture for the GW-7433D.
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Only the following Modbus TCP & RTU commands are supported by the GW-7433D gateway.
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Code
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Name
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Description
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01(0x01)
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Read Coil Status
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Read the ON/OFF status of discrete outputs in the slave
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02(0x02)
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Read Input Status
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Read the ON/OFF status of discrete inputs in the slave
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03(0x03)
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Read Holding Registers
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Read the binary contents of holding registers in the slaves
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04(0x04)
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Read Input Registers
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Read the binary contents of input registers in the slaves
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05(0x05)
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Force Single Coils
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Forces one coil in a sequence of coils to either ON or OFF
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06(0x06)
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Preset Single Register
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Preset an integer value into a single register.
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15(0x0F)
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Force Multi Coils
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Forces each coil in a sequence of coils to either ON or OFF
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16(0x10)
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Preset Multi Registers
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Preset value into a sequence of holding registers
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Hardware
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Watchdog
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Watchdog IC
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CAN Interface
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Controller
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NXP SJA1000T with 16 MHz clock
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Transceiver
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NXP 82C250
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Connector
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5-pin screwed terminal block (CAN_L, CAN_SHLD, CAN_H, N/A for others)
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Isolation
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1000 VDC for DC-to-DC, 2500 Vrms for photo-couple
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Protocol
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CANopen DS-301 ver4.02, DS-401 ver2.1
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UART Interface
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COM 1
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RS-232
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COM 1 Connector
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5-pin screwed terminal block (TxD, RxD, RTS, CTS, GND )
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COM 2
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RS-485 (Self-turner inside)
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COM 2 Connector
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2-pin screwed terminal block (DATA+, DATA-)
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Protocol
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Modbus RTU
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Ethernet Interface
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Controller
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10/100Base-TX Ethernet Controller (Auto-negotiating, Auto_MDIX)
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Connector
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RJ-45 with LED indicator
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Protocol
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Modbus TCP
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Power
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Power supply
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Unregulated +10 ~ +30 VDC
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Protection
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Power reverse polarity protection, Over-voltage brown-out protection
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Power Consumption
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2.5 W
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Mechanism
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Dimensions
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72mm x 33mm x 122mm (W x L x H)
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Environment
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Operating Temp.
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-25 ~ 75 ℃
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Storage Temp.
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-30 ~ 80 ℃
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Humidity
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10 ~ 90% RH, non-condensing
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Modbus TCP server & Modbus RTU slave to CANopen master Gateway (RoHS)
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