Trace Point Setup Screen - Mitsubishi Electric M800VW Series Manual

M800V/M80V Series PLC Development Manual
6 Explanation of Built-in Editing Function (PLC On-board)
6.17 Device Menus

6.17.4.3 Trace Point Setup Screen

Outline
The trace point (the timing to collect data) can be specified.
How to specify the trace point is as follows.
Each main scan (default)
Each high scan
Trace data change
Specified devices
The followings can be set for the trace point conditions when the devices are specified.
Bit device setup
Word device setup
Device setup condi.
Note
(1) The settings such as "trace point setup" and so on are valid after pressing the [SETTING] menu key.
(2) The trace conditions are retained in the NC at the start of tracing.
If you start the on-board and open the sampling trace screen, the screen shows the retained conditions even after the NC
power OFF.
If you set the trace conditions, and then turn OFF the NC power before starting tracing, the previous conditions before the
setting are applied.
(3) The entry settings are disabled during the trace execution. (An error message appears.)
IB-1501614-B
This collects trace data every times after executing the main scan.
This collects trace data after every scan of PLC high speed process.
The bit devices which can be set up as the trace data are limited to 8 points or less.
This cannot be selected with the user safety sequence "SafePLC1" or "SafePLC2". If this is
selected, the error occurs when the sampling trace is executed.
This collects the trace data when changing the status of device set in the trace data setup per
main process scanning.
If many devices are registered for the trace data setup, the trace data is collected even when
any one of them changes.
The available devices which can be set as the trace data are limited to 8 points for the bit device
and 2 or less points for the word device.
This collects the trace data when the setup condition registered in the specified devices field
per scan of the main process is satisfied.
Up to 8 points of bit device and 2 points of word device can be specified.
Device cannot be specified with label name.
CONDI.
When the bit device is changed from OFF to ON
↑
When the bit device is changed from ON to OFF
↓
ON When the bit device is ON
OFF When the bit device is OFF
= Equal to the value
<> Not equal to the value
> Smaller than the value
<= Smaller than or equal to the value
>= Bigger or equal to the value
Change The value changed
Mask This checks the satisfied condition after masking (AND) the value of traced device with
the mask value.
(e.g.) Device D100: Current value 12A5 (hex)
Trace condition =, Value of trace condition 1200 (hex),
Mask of trace condition FF00 (hex)
(1) Masking the trace point data.
12A5 & FF00 = 1200
(2) Checking the trace condition.
Equal to the value ?
1200 = 1200
Therefore, the condition is satisfied.
AND When all the setup conditions in bit device setup and word device setup are satisfied.
OR When any of the setup conditions in bit device setup and word device setup is satisfied.
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