Setting Ladder Program Writing During Run; Plc Data Available For Ladder Program Writing During Run - Mitsubishi Electric M800VW Series Manual

M800V/M80V Series PLC Development Manual
5 Peripheral Development Environment (GX Works2)
5.6 Developing Simple Project

5.6.8.2 Setting Ladder Program Writing during RUN

Turn ON the corresponding bit selection parameter and turn the power ON again to enable ladder program writing during
RUN.
[Bit selection parameter]
# No. Bit
Enable ladder program writ-
6455 Bit 6 ing during RUN (in high-
speed processing)
Enable ladder program writ-
6455 Bit 7
ing during RUN
Note
(1) These parameters will be enabled after the power is turned ON again.
(2) When the multi-project function is enabled, the enabled or disabled status of ladder program write during RUN is switched
for all the projects.
(3) Turning ON "#6455 Bit6 (Enable ladder program writing during RUN (in high-speed processing))" alone does not take
effect.
When setting "#6455 bit 6" to "1", also set "#6455 bit 7 (Enable ladder program writing during RUN)" to "1".
(4) When "Enable ladder program writing during RUN (in high-speed processing)" is set to "1", a high-speed processing pro-
gram will use 8,000 steps of execution area.
Thus, if the program size before the setting change is close to the maximum, the error of insufficient execution area may
occur after the setting change.

5.6.8.3 PLC Data Available for Ladder Program Writing during RUN

The following shows the PLC data which can be stored in CNC controller and available for ladder program writing during
RUN.
[Data type available for RUN write]
Data category
Sequence programs
(independent program method)
Sequence programs
(Multi-program method) (*1)
Symbolic information
Parameter
Device comments
Message data
(*1) Only the program whose execution order has been registered in the parameter is available.
(*2) There are some restrictions on the contents of high-speed processing programs. For details, refer to later precautions.
IB-1501614-B
Item
Select whether to permit ladder program writing during
RUN to built-in PLC (in high-speed processing).
0: Not permit ladder program writing during RUN
1: Permit ladder program writing during RUN
Select whether to permit ladder program writing during
RUN to built-in PLC (except in high-speed processing).
0: Not permit ladder program writing during RUN
1: Permit ladder program writing during RUN
Data type GX Works2
-
High-speed process
Main process
Initialization process
Standby process
-
Description
GX Developer
× ×
○ (*2) ○ (*2)
○ ○
○ ○
○ ○
○ ○
× ×
144
Setting Standard
range value
0,1 0
0,1 0
Built-in PLC (built-in edit
function)
×
○ (*2)
○
○
○
×
×