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modbus modbus-tcp tcp

Modbus TCP Response Time

发布于 2021-07-13 11:43:55

I have use modbus tcp on m3 core and using lwip stack on lower layers. When I send ,read holding registers(125 register) command on modbus poll to mcu and watch request and response frames on wireshark, values are;

Handshake[SYN+ACK] frame after receiving [SYN] frame = 400us Average Response Time Modbus/TCP by MCU = 900 us - 1.5ms

I think Handshake response is normal, but ı am not sure Modbus/TCP response time. Is it OK ? Baudrate is 100Mbit. Thank you all,

Questioner
Fatih Türkmen
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grapes 2021-07-15 20:55:49

This time is ok for typical modbus tcp server

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