Optical Instruments, Volume. 35, Issue 1, 70(2013)
A design of communication processor module based on Modbus/TCP protocol
To realize the functions of communications processor module, an embedded TCP/IP protocol stack was proposed based on the uC/OS-II real-time operating system and the hardware platform of ARM7 kernel, which can support multi-threaded real time application by transplanting the LwIP to ARM development platform. On the communication application layer, the Modbus frames was embedded to the TCP frames, and the Modbus/TCP protocol communication structure model was analyzed, in order to ultimately achieve the embedded Modbus/TCP communication protocol simply and reliably. The results indicated that the Modbus/TCP data transfer between client and server was realized stably and effectively by combining with Modbus/TCP protocol and establishing several thread functions.
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LI Huiyan, FEI Peng, SHEN Yuming. A design of communication processor module based on Modbus/TCP protocol[J]. Optical Instruments, 2013, 35(1): 70
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Received: Jun. 14, 2012
Accepted: --
Published Online: Mar. 27, 2013
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