Mitsubishi Electric MELSEC-LD77MS2 User Manual page 627

[3] Manual pulse generator operation
"Manual pulse generator operation" is a control method in which positioning is
carried out in response to the number of pulses input from a manual pulse
generator (the number of input command is output). This operation is used for
manual fine adjustment, etc., when carrying out accurate positioning to obtain the
positioning address.
Simple
Motion
module
Manual control sub functions
Refer to Section 3.2.5 "Combination of LD77MS main functions and sub functions"
for details on "sub functions" that can be combined with manual control. Also refer
to Chapter 13 "Control Sub Functions" for details on each sub function.
Carrying out manual control from GX Works2
"JOG operation", "Inching operation" and enabling/disabling of the "manual pulse
generator operation" can be executed from GX Works2 test function.
Refer to the "Simple Motion Module Setting Tool Help" of GX Works2 for details on
manual control from GX Works2.
Monitoring manual control
Refer to Section 5.6 "List of monitor data" when directly monitoring the buffer
memory using GX Works2.
Also refer to the "Simple Motion Module Setting Tool Help" of GX Works2 when
monitoring with the monitor functions of GX Works2.
Command
output
M
Pulse input
Manual pulse generator
Fig. 11.3 Manual pulse generator control
11 - 3
Chapter 11 Manual Control
Movement in response
to the command pulses