Cautions - Mitsubishi Electric F930GOT-BWD-E User Manual

Graphic Operation Terminal F930GOT
13.6.6

Cautions

When many registration points are registered or when many observe status operations are
performed as described below, it takes considerable time until the operations are completed.
As a result, the responsibility of the F930GOT may be affected.
• When "Momentary" is selected as the bit device operation and many storing devices are set
And when many triggers are set for "Momentary"
• When many triggers are established and many write operations are often performed
Especially when the observe status cycle is set to "always" or the cycle is set to a short
period
Effect on F930GOT
• Effect on functions and objects which are actuated at a constant cycle
Functions which are cyclically actuated may not be actuated in accordance with the setting.
For example, the observe status function (monitoring cycle), the sampling function, the
alarm history/list function, the current time function and the trend graph function may be
affected.
• Effect on transfer of the screen data
When the display is automatically changed over to the PLC transfer screen and the screen
data is transferred, the message "Main unit processing error" may be displayed on the
screen creation software side.
In such a case, change over the display to the PLC transfer screen by key operation. Then,
the screen data can be sent and received.
• Effect on the monitoring function, the screen changeover function and the key operation
Specified operation may be delayed for screen changeover, monitoring and key operation in
the same way as the description above.
• Effect on the built-in 2PIF function
When circuit monitoring, device batch processing or monitor registration is executed in a
peripheral unit, a communication error may occur in the peripheral unit.
Additional Functions (in V.2.00 or later) 13
13-21