PLC communication protocol conversion gateway

GRM330Equipped with 1 232 port (convertible to 485) and 4 isolated 485 ports，3 Ethernet ports

*485 port supports various PLCs (PPI, MPI, HOSTLINK), MODBUS instruments

*3 Ethernet ports support mainstream PLCs such as Siemens Omron Mitsubishi AB

*The network port has built-in switch function and can also simultaneously collect PLCs from different network segments

*Comes with dual power supply interface and built-in watchdog

*5KV isolated communication, super strong anti-interference ability

*Equipped with LED display, capable of displaying communication status and fault codes

GRM330Support the conversion of common PLC communication protocols on the market, including Siemens S7200 PPI protocol and Ethernet protocol, S7200 smart PPI protocol and Ethernet protocol, S7300/400 Ethernet protocol, S71200 Ethernet protocol, S71500 PLC Ethernet protocol, AB PLC Ethernet protocolEthernet/IP CompactLogix and ControlLogix series host protocolsMitsubishi PLC RS485 and Ethernet communication protocol, Schneider, Omron, Xinjie, Delta and other PLC protocols, as well as standard MODBUS and OPC protocols.

*Support unified conversion of different protocols to MODBUS TCP, RTU or OPC

*Up to 5 isolated 485 parallel data acquisition channels to solve polling speed and anti-interference issues

*Perfectly compatible with incomplete instrument acquisition of MODBUS slave protocol implementation

*Support data exchange between different PLCs or instruments, PLC does not need to add communication programs

*Exchanging data can distinguish priorities, thresholds, and maximize the utilization of communication bandwidth

*Jukong's unique optimized packaging read-write strategy, with faster communication speed

*Support upper computer and PLC to collect data not in the same network segment, support 64 bit floating point

*Support LAN WEB interface to read data, suitable for third-party development

*Rich logic and functions for data processing, calculation, and statistics

*Communication self diagnosis and fault recovery mechanism, equipped with multiple debugging methods

*With permission control, supports read-only settings and program download protection, ensuring device security

Example 1: Implement Siemens S71500, S71200, S300/400 PLCs to read MODBUS instrument data.

The GRM330 module network port can support S71500, S71200, S300/400 PLC S7 network port protocols, and the serial port can support MODBUS protocol.

PLC does not need to add any programs. After the module reads the MODBUS instrument, it can be forwarded to the corresponding register area of S7 1500, S71200, S300/400 PLC through the network port.

It is also possible to achieveThe data of S71500, S71200, S300/400 PLCs is transmitted to other devices through Modbus

Example 2: Implement communication between Siemens S7 1500 and AB 1756 series PLCs.

The module network port can support both the 1500 S7 network protocol and the AB 1756 Ethernet IP protocol simultaneously.

PLC does not need to add any programs, the module reads AB PLC through the network port and forwards it to the register area corresponding to 1500.

It can also read 1500 data and forward it to AB PLC to achieve bidirectional data exchange between the two.

Model selection:

A device

The network interface supports protocols

Giant control gateway application:

Scenario A: Siemens 1500 needs to collect data from multiple frequency converters and instruments

Application difficulties: Writing polling programs is complex, collection speed is slow, and using a single serial port causes significant on-site interference

Giant control solution: using GRM300 series gateway, up to 5 isolated serial ports for parallel acquisition of frequency converters and instruments

The network port is directly connected to a 1500 PLC, and no code needs to be added to the PLC

Simply configure the gateway to complete automatic data transmission to the designated data area

Scenario B: The upper computer WINCC needs to collect data from multiple frequency converters and instruments

Application difficulties: The upper computer does not support MODBUS, resulting in slow acquisition speed, long distance, multiple devices, and significant on-site interference

Giant control solution: using GRM300 series gateway, up to 5 isolated serial ports for parallel acquisition of frequency converters and instruments

The gateway network port is directly connected to WINCC and converted to OPCSERVER protocol, and WINCC can obtain data.

Scenario C: Data exchange is required between AB PLC and Mitsubishi Q PLC

Application difficulties: Different communication protocols, located in different IP segments, PLC passive program modification

Giant control solution: Use GRM300 series gateway, with 2 network ports connected to 1756 and Mitsubishi Q respectively

The gateway is equipped with various PLC protocols

PLC does not need to add any code, simply configure the gateway to complete data exchange

Scenario D: The touch screen needs to be connected to multiple frequency converters, PLCs, and instruments

Application difficulties: Different communication protocols, multiple points, slow collection speed from multiple slave stations, and significant interference

Giant control solution: using GRM300 series gateway, all 5 isolated serial ports can be connected to frequency converters and instruments, PLC

The network port can also be connected to various PLCs,

At the same time, the network port is converted to a MODBUS TCP slave, and the address is mapped to a continuous address for touch screen reading and control.

Scenario E: The factory information platform needs to obtain various PLC data

Application difficulties: Different communication protocols, IT developers are not familiar with PLC communication, there are many points, and the collection speed is slow

Giant control solution: using GRM300 series gateway, all 5 isolated serial ports can be connected to frequency converters and instruments, PLC

The gateway network port can also be connected to various PLCs

The gateway network port supports WebService interface, and platform developers do not need to understand any PLC communication details

Can read and write PLC data directly in the simplest way possible

Scenario F: MODBUS slave stations need to be simultaneously collected and accessed by multiple master stations

Application difficulty: MODBUS slave station cannot achieve simultaneous acquisition of multiple master stations

Giant control solution: using GRM300 series gateway, multiple MODBUS slave stations can be connected with 2 serial ports to collect data

Then configure the other three serial ports as MODBUS slave stations for forwarding, allowing multiple master stations to collect data simultaneously