LG GLOFA-GM Series User Manual page 269

Chapter 8 Exercising program
Next is setting screen of SD_SAVE variables. Memory of 41bytes is allocated to %MB140 address starting.
Data size of TX variable shall be set at least identical to the data size to be sent.
[Figure 8.8] shows Function Block program for transmission of Read data.
[Figure 8.8] Function Block to read data
Flag monitoring the
receiving of Read
response frame
TX request flag of Read request frame
Function Block for
receiving of response
to Read request
8-18
Function Block for
Read request TX.