Detailed Explanation - Mitsubishi Electric M800VW Series Programming Manual

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.33 PLC Axis Control
[Other restrictions]
 There is no mirror image, external deceleration or machine lock function.
 Rapid traverse override, cutting override and dry run control are not possible.
 Automatic operation start, automatic operation stop, reset and interlock NC controls are invalid for PLC control axes.
The same control can be realized using an interface dedicated for PLC axis control.
 There is no dedicated emergency stop. The emergency stop is valid in the same manner as the NC control axis.

14.33.2 Detailed Explanation

The flow of the process during PLC axis control execution is shown below.
(1) The user PLC sets the control data in the R register.
(2) The user PLC sets the PLC axis control information address in the R register.
(3) The user PLC turns the PLC axis control valid signal ON.
(4) The NC executes PLC axis control based on the control data.
During PLC axis control, the status, alarm details, machine position and remaining distance are set in the R register.
Flow of PLC axic control for 1st PLC axis in single mode
(4)
Execution of PLC axis
control and setting of
status during process, etc.
Note
(1) Refer to "Axis specification" in "14.33.4 Details of PLC Axis Control Information Data" for the explanation of unused regis-
ter No. R1n+4.
IB-1501668-B
NC User PLC
R440 R1n
R1n+0 (Not used)
R1n+1 Status
R1n+2 Alarm details
Control signal
R1n+3
R1n+4 (Not used) (Note)
R1n+5 Operation mode
R1n+6
Feed rate
R1n+7
R1n+8
Movement data
R1n+9
R1n+10
Machine position
R1n+11
R1n+12
Remaining distance
R1n+13
Set PLC axis control
information address
Set control data
PLC axis control
valid signal ON
802
(2)
(1)
(3)