Mitsubishi Electric M800VW Series Manual page 178

M800V/M80V Series PLC Development Manual
5 Peripheral Development Environment (GX Works2)
5.6 Developing Simple Project
Other precautions
(1) Number of steps that can be written during RUN
Up to 48 lines of ladders can be edited and converted in GX Works2, GX Developer and PLC on-board edit function.
For the ladder program writing during RUN of a single block, ladder blocks to be written at a conversion include the block
between the edited ones. Up to 512 steps can be written during RUN at a conversion.
For the multiple-block writing in ladder program during RUN, when the two edited program blocks are apart from each
other, the block(s) between the two blocks will not be written. Up to 64 blocks can be written during RUN at a conversion
and up to 1,024 steps can be written in the total number of the blocks.
For GX Works2, when you write multiple FB instances in a single file during RUN, the ladder program writing during RUN
of multiple blocks is executed. In any other case, the ladder program writing during RUN of a single block is executed.
[When editing two or more detached ladder blocks]
Up to 48 lines of
ladders can be
edited and
converted.
[When editing multiple FB instances]
Main processing program
FB_1
FB_n
(2) Change of processing time in writing during RUN
The processing time until ladder program writing during RUN completion depends on the total number of steps used in
the sequence programs during RUN and the points where the steps are written in. The process takes up to several min-
utes. Note that the longer processing time may take when FBs are to be written during RUN.
(3) Change of startup interval of a sequence program in writing during RUN
The startup interval of a sequence program which is currently running may become slower depending on the total number
of steps used and step positions to be written. Especially when the ladder program writing during RUN is executed on a
project with labels, the startup interval tends to become slower.
Editing part-1
MOV K10 D100
Editing part-2
Up to 64 blocks, 1,024 steps in total
can be written at a conversion.
Unedited ladders between the
edited parts are not to be written.
Function block
Editing part
153
Up to 512 steps can be
written at a conversion.
The block between the
edited parts is to be
written as well.
IB-1501614-B