Commands - Mitsubishi Electric MELSEC FX Series User Manual

FX communication

8. Commands

This chapter describes the structure and gives examples for each command of the dedicated
protocol.
See also Chapter 7 "Communication using Dedicated Protocols".
The reference pages for command are given below.
Command
BR Bit devices read in units of 1 point.
WR Bit devices read in units of 16 points, or word devices read in units of 1 point.
BW Bit devices written in units of 1 point.
WW Bit devices written in units of 16 points, or word devices written in units of 1 point.
BT Bit devices specified in units of 1 point, and set/reset (forced on/off).
Bit devices specified in units of 16 points, and set/reset (forced on/off), or word
WT
devices specified in units of 1 point, and data written.
RR Programmable controller is started (RUN) by remote control.
RS Programmable controller is stopped (STOP) by remote control.
PC Programmable controller type name code is read.
GW Global signal is turned on/off on all linked programmable controllers.
On-demand function (Send request is issued from the Programmable controller.

There is no command).
TT Characters received from the computer are directly returned to the computer.
Description
Commands 8
Section
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.7
8.8
8.9
8.10
8.11
8
8-1