PLC Communication

Question

I am using Melsec Q series PLC. PLC module Qj71e71-100 .This module via data read/write purpose. This module support CMD Details tell me .Here attached the source code.

Nilesh Patil · Answer

Hi What is your exact problem?

vincent william · Answer

Please tell me idea for this error code; C05800A1 I am PLC Programmer. Some knowledge for C#. C# Side error . IndexOutOfRangeException was unhandled by user code. Nothing in buffer.

vincent william · Answer

PLC side Error ; 00A1 Error Description ; Contents of the request cannot be analyzed because the text length or request data length is too short. Action; Check and correct the text length or request data length of the Qn header. Then send data to the Ethernet module again. PC Side Error; Nothing in Buffer. Ethernet module automatic going error mode. PLC Data Read button Click automatic above error coming. Please share any idea.