NT31C-ST143-EV3 Omron, NT31C-ST143-EV3 Datasheet - Page 161
NT31C-ST143-EV3
Manufacturer Part Number
NT31C-ST143-EV3
Description
5.7 8-Color Dsp,STN,Ivory,Eng
Manufacturer
Omron
Datasheet
1.NT31-ST123B-EV3.pdf
(313 pages)
Specifications of NT31C-ST143-EV3
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Memory Initialization
6-4-3
144
Initializing Alarm History Record Data
Reference:
The alarm history record function continually checks the status of host bits
that have been designated in advance with a bit memory table, and records
the time when any of the bits is set to 1 (comes ON), and the number of times
that each bit comes ON.
The maximum number of records is 256 for sort by occurrence (order of error
occurrence) and 255 for sort by frequency (order of the number of times each
error has occurred).
Use the alarm history record initialization function to reset the alarm history
record data to 0, for example when the screen data has been changed, etc.
Also, if Screen (Use Ring Buffer) under History Setting in the PT Environment
Settings – System Settings has not been checked, no more records will be
stored after the maximum number of records has been kept, and therefore the
records must be periodically initialized. If Screen (Use Ring Buffer) is
checked, when the maximum number of records is reached the oldest record
is deleted and the newest data is recorded.
The NT31/NT31C also allows the alarm history record data to be initialized by
controlling the PT status control area from the host. For details, refer to 2-2-1
PT Status Control Area in the Reference Manual.
Section 6-4
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