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3.4.4. Modbus Polling Function
USR-N520 support modbus polling function under TCP server mode. Set USR-N520 as Modbus Poll,
support multiple host polling to check parameter.
1. Multiple host polling is realized through virtual com.
1
Set parameter of USR-N520 via web page, make sure to select ModbusTCP Poll and set overtime
2
Open virtual com softarae to setup servel ports and connects to USR-N520
Summary of Contents for USR-N520
Page 1: ...1 69 User Manual File Version V1 0 4 ...
Page 17: ...17 69 UDP Client Software Configuration UDP Client Testing Screenshot ...
Page 27: ...27 69 2 Set modbus slave software refer to the following ...
Page 28: ...28 69 3 Return result for query command is as drawing ...
Page 33: ...33 69 Drawing 26 Self Defined Heartbeat Function ...
Page 35: ...35 69 2 Testing result ...
Page 37: ...37 69 Web to Serial COM Send Receive Data ...
Page 40: ...40 69 2 Set Printer Driver ...
Page 59: ...59 69 Software Configuration Full Show ...
Page 69: ...69 69 ...