User`s manual

Graphic Operation Terminal F930GOT Alarm Function 7
7-6
7.3 Alarm history clear
This paragraph describes the operating procedure to clear the alarm history in the alarm
mode.
The clear history function deletes both the alarm history and the alarm frequency result.
• By setting a control device (system information) to ON, the alarm history can be cleared
from the PLC.
When the screen creation software for DU (FX-PCS-DU/WIN-E) is used
When the first bit (b0) of a control device becomes ON, the alarm history is cleared.
When the screen creation software for GOT-A900 (SW
o
D5C-GOTRE-PACK) is used
When the first bit (b0) of the head read device (word device) becomes ON, the alarm his-
tory is cleared.
By using a device specified in "History Clear Trigger" in "Alarm History Common Setting" in
the screen creation software, the alarm history can be cleared in the same way.
When the contact input becomes ON, the alarm history is cleared.
When M0 is selected as the control device
M0
M8000 : Always ON
MOV D10 K1M10
M10
When the contact input becomes ON, the alarm history is cleared.