Read And Write Buffer Memory Of Special Function Module; Data To Be Specified In Command - Mitsubishi Electric MELSEC IQ-R series Reference Manual

18.6
Read and Write Buffer Memory of Special Function
Module
The section explains the commands that read/write data from/to buffer memory of MELSEC-A series special function module.
For the message formats other than request data and response data, refer to the following sections.
Page 391 Message Format, Page 391 Details of Setting Data
This command accesses in byte units.

Data to be specified in command

This section explains the contents and specification methods for data items which are set in each command related to the
access to the special function module buffer memory.
Start address
Specify the start address of the buffer memory to be read/written.
The value to specify is the same as 1C frame.
Page 384 Special function module No.
■Data communication in ASCII code
Convert the numerical value to 6-digit ASCII code (hexadecimal), and send it from the upper digits.
■Data communication in binary code
Send 3-byte numerical values from lower byte (L: bits 0 to 7).
Ex.
When the head area address is 1E1H
ASCII code
0 0 0 1
30 30 30 31
H H H H
18 COMMUNICATING USING 1E FRAMES
432

18.6 Read and Write Buffer Memory of Special Function Module

Binary code
E 1
45 31
E1
H H
01 00
H H H