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talotam

Maple System communicate with PAC3000

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I have been trying to get a Maple Systems HMI model 5104XH to communicate with an Automation Direct PAC3000, with no success. I have an ethernet crossover cable connected between the two components, with IP addresses of 192.254.207.161 (PAC3000) and 192.254.207.1 (HMI). The HMI port is selected as port 502. On the HMI, the communication LED is flashing once per second, and the screen is showing "PLC no response". If I can just get communication, then I can begin figuring out my array of modbus codes for I/O and integer registers. Thanks for help.

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