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Ethernet (MODBUS/TCP) @ MODBUS/RTU (2-port) gateway
The MODBUS/RTU to Ethernet MODBUS/TCP gateway is mainly used in DCS systems with MODBUS/TCP as the backbone network, or in control systems with MODBUS
Product details
The MODBUS/RTU to Ethernet MODBUS/TCP gateway is mainly used in DCS systems with MODBUS/TCP as the backbone network, or in control systems with MODBUS/PLC; If it is necessary to connect some MODBUS devices (such as motor protector MCC, power meter PCC, frequency converter, I/O, etc.) to the Ethernet system, this product is the best choice
● Independent channel 2-port MODBUS/485/RTU master station, without the need for RS485 physical layer expansion devices (repeaters or HUBs), can directly connect 62 MODBUS/RTU slave station devices.
Different from transparent transmission mode, this gateway is a memory sharing gateway with the advantages of fast data refresh speed and simple client programming. By configuring the EMGWConfi software, the mapping relationship between each MODBUS/RTU and the MODBUS/TCP storage area (Zone 0, Zone 1, Zone 3, Zone 4) can be configured and downloaded. The gateway automatically forms MODBUS/RTU messages and sends them in a timed loop. The Ethernet side client only needs to read/write the gateway storage area through MODBUS/TCP to monitor MODBUS/RTU. As shown in the following figure:
Different from transparent transmission mode, this gateway is a memory sharing gateway with the advantages of fast data refresh speed and simple client programming. By configuring the EMGWConfi software, the mapping relationship between each MODBUS/RTU and the MODBUS/TCP storage area (Zone 0, Zone 1, Zone 3, Zone 4) can be configured and downloaded. The gateway automatically forms MODBUS/RTU messages and sends them in a timed loop. The Ethernet side client only needs to read/write the gateway storage area through MODBUS/TCP to monitor MODBUS/RTU. As shown in the following figure:
Monitoring function: Use status control words to monitor and control the current online/offline status of the slave station, accumulate and clear error markers.
The gateway has multiple working modes.
In addition to the ones introduced aboveMODBUS/RTU main station MODBUS/TCP server modeIn addition, there are two working modes:
MODBUS/RTU slave MODBUS/TCP client modeIn this mode, the gateway can connect up to 31 server devices as an Ethernet client;
MODBUS/RTU slave MODBUS/TCP server modeThis mode provides a solution for the interconnection between MODBUS/RTU master station and MODBUS/TCP client.
Three working modes complement each other, are flexible in application, and can meet the networking needs of the vast majority of industrial sites.
Baud rate 2400-115.2 K half duplex; The checksum and stop bit can be selected through the EMGWConfi configuration software.
Standard industrial Ethernet interface: RJ45, 10/100M adaptive, MODBUS/TCP server, can connect up to 6 clients at the same time, easy to debug, monitor, download and configure.
Wide voltage power supply 24VDC ± 25%, 35mm rail clamp, providing intuitive and effective indicator light function.
Working temperature: -20 ℃ to+55 ℃; Relative humidity at work: 5-95% (no condensation).
The gateway has multiple working modes.
In addition to the ones introduced aboveMODBUS/RTU main station MODBUS/TCP server modeIn addition, there are two working modes:
MODBUS/RTU slave MODBUS/TCP client modeIn this mode, the gateway can connect up to 31 server devices as an Ethernet client;
MODBUS/RTU slave MODBUS/TCP server modeThis mode provides a solution for the interconnection between MODBUS/RTU master station and MODBUS/TCP client.
Three working modes complement each other, are flexible in application, and can meet the networking needs of the vast majority of industrial sites.
Baud rate 2400-115.2 K half duplex; The checksum and stop bit can be selected through the EMGWConfi configuration software.
Standard industrial Ethernet interface: RJ45, 10/100M adaptive, MODBUS/TCP server, can connect up to 6 clients at the same time, easy to debug, monitor, download and configure.
Wide voltage power supply 24VDC ± 25%, 35mm rail clamp, providing intuitive and effective indicator light function.
Working temperature: -20 ℃ to+55 ℃; Relative humidity at work: 5-95% (no condensation).
MODBUS gateway configuration software: EMGWConfi
Due to the memory sharing principle used in this product, the configuration software EMGWConfi is required to configure the mapping relationship between MODBUS/RTU and MODBUS/TCP storage areas (Zone 0, Zone 1, Zone 3, Zone 4). At the same time, necessary information such as baud rate, checksum, stop bit, slave station address, and IP address and port number on the network port side should be configured to enable the master station to accurately, quickly, efficiently, and cyclically send messages to the slave stations.
EMGWConfi is a top-level configuration software developed and provided by Beijing Dingshi, with independent intellectual property rights. Download configuration for ETH-485-mRTUX product through Ethernet interface.
| Order model | ETH-485-MRTU2 | ||||||
| Ethernet interface parameters | physical interface | 8-pin RJ45， Adaptive interface mode | |||||
| working mode | When working as a MODBUS/TCP server, connect up to 6 clients for easy debugging; When working as a MODBUS/TCP client, 31 server devices can be connected | ||||||
| Baud rate | 10/100 Mbps， adaptive | ||||||
| data volume | Maximum data size of a single MODBUS/TCP message: 255 (starting from the MODBUS device address byte and including the length of the last byte from FC to DU) | ||||||
| Serial port parameters | physical interface | When working as the main station, two independent MODBUS485 main station interfaces can be connected to a maximum of 31 stations per port without the addition of relays, for a total of 62 stations connected to the two ports. | |||||
| Character format | Data bit: 8; Check bits: odd, even, none; Stop position: 1, 2 | ||||||
| working mode | MODBUS RTU master-slave optional | ||||||
| Baud rate | 2400bps, 4800bps, 9600bps, 19.2Kbps, 38.4Kbps, 57.6Kbps, 115.2Kbps are optional | ||||||
| data volume | Register 0 (output coil): 8096Bits, Register 1 (input coil): 8096Bits, Register 3 (input register): 2000Words, Register 4 (hold register): 2000Words |
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| Operational characteristics | configuration method | Use the dedicated configuration software EMGWConfi to configure and download, and select different software and working modes according to actual needs | |||||
| electrical parameter |
power consumption | Power supply: 24VDC (± 20%), current: 90mA | |||||
| working environment | Working temperature: -20 ℃ to+55 ℃ (for customers with lower temperature requirements, please declare at the time of procurement); Relative humidity at work: 5~95% (no condensation) | ||||||
| Storage and transportation temperature | Transportation and storage: -40 ℃ to+70 ℃; | ||||||
| install | Method: 35mm guide rail; Protection level: IP20; | ||||||
| size | Width (55mm) x Length (120mm) x Thickness (104mm); Weight: Approximately 440g | ||||||
| Product Features | Application scenarios | Mainly used to connect MODBUS/RTU devices to DCS systems with MODBUS/TCP as the backbone network | |||||
ETH-485-MRTU2 configuration software
ETH-485-MRTU2 Product Manual
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