Beifu twincat3 can read and write CSV and txt files

This article tests TwinCAT3 Realization CSV、TXT File read and write . That is, the data during the operation of the machine is saved in the hard disk of the remote computer or the local computer .

1. Operation process
   1.1. Library file reference
   1.1.1. Lib_FileOperation
   This file needs to be imported , It includes related function blocks for file reading and writing , As shown below ：

1.2. Function block introduction
1.2.1. FB_WriteReadFileTXT_2
This function block is based on CSV or TXT Function block of format read / write file

1.2.2. Demo Program
First, instantiate the function block and the related read / write array as follows ：

adopt for Loop assignment to array , As shown below ：

Besides , Some parameter selection of function block , For example, whether to write multiple lines at the same time , Whether to overwrite the original file and other parameter settings , It can be enabled according to actual functions , As shown below
The next step is to read and write files , Note the file directory , This test uses