Mitsubishi Electric M800VW Series Manual page 159

M800V/M80V Series PLC Development Manual
5 Peripheral Development Environment (GX Works2)
5.6 Developing Simple Project
 How to check size of area for execution
When "error status (4005): Execution area size over" ((*) in the error list described previously) is generated, check the size of
the execution area as follows. For details on execution area, refer to "PLC Programming Manual".
When [Standard RAM] is selected as [Target Memory] on the "Read from PLC" screen, the file name and the title are changed
and displayed as follows. For simple projects (with labels), open the "Delete PLC Data" screen instead of the "Read from
PLC" screen.
(a) Target Memory Setting
(b) The number of steps at execution when the title section is replaced.
The alphabet at the head of the number of steps indicates the state of parameter designation.
I: Initial; H: High speed; M: Medium speed; W: Wait
-: No parameters or parameters not stored
(c) The total number of steps at execution. (Total of "Initial", "High speed", "Medium speed" and "Wait")
The denominator indicates the maximum size of the execution area.
When there is no parameter, the single program method is applied and "TOTAL" will not be displayed.
In the above screen example, adjust the size of the sequence program so that the total number of steps at execution (37)
indicated in (c) is smaller than the denominator: the maximum size (1032128) of the execution area.
Note
(1) Exercise caution not to delete files by mistake when checking the size of the execution area for simple projects (with
labels).
IB-1501614-B
(b)
(c)
134
(a)