![]() ![]() News report: ZLAN Modbus TCP to RTU products and its cooperation partner Sunway passed the Modbus compatibility test.。Īpplication manual: about the usage of Modbus TCP to RTU function, please refer to CD: Document\Complete Application Cases\Modbus_RTU network upgrade\Part 1.5 “Communication based on Modbus TCP transforming to Modbus RTU”. As shown in the figure.Ģ) The transformation protocol should be selected as Modbus TCP, and the working mode is the TCP Server, and the port is 502. A Modbus server module is responsible for receiving requests and implementing actions (reading and writing in particular) to respond to them. ![]() Modbus is also a client server protocol where Client master and Server slave in Modbus. ![]() Confirm that the left hook of Modbus TCP to RTU in the device support function has been selected, indicating that the device supports Modbus TCP to RTU. Using TCP or RS485 shields, like the MKR 485 Shield. Use ZLVircom software to search and find the device to edit the device. Modbus TCP software can then access the Modbus RTU device by accessing the IP address of 2040 (common port 502).ġ)ğirst confirm that the device is a 2040 product that supports Modbus TCP. When using 2040 product the hardware connection is:Ĭonnect the serial port of 2040 with the Modbus RTU device and connect the Ethernet port to the network. NETCOM2040 and ZLSN2040 can realize the Modbus TCP to Modbus RTU, both functions are similar, but one is a finished product the other is a small embedded core modules embedded into the user circuit, embedded module can reduce the user product volume also effectively reduce the cost. ![]()
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