9. OPERATION
IMR01N12-E7
104
Continued from the previous page.
Peak hold function:
The Peak hold function is used to store (hold) the maximum (peak) measured value (PV). The
peak hold value is updated regardless of the STOP or RUN state if the power to this controller
is turned on. Each of this value is updated when the Measured value (PV) becomes more than
the value now being held. However, if the following operation is performed, the value now
being held is reset and as a result the Measured value (PV) just when reset becomes the peak
hold value.
When the power is turned on or it is turned on again
When operation mode is changed from STOP to RUN
When hold reset
Time
Measured value (PV)
Peak hold
Display
updating
PV
Monitor value
Power ON
Hold reset
Peak hold
Display
updating
Peak hold value is not backed up.
Bottom hold function:
The Bottom hold function is used to store (hold) the minimum (bottom) measured value (PV).
The bottom hold value is updated regardless of the STOP or RUN state if the power to this
controller is turned on. Each of this value is updated when the Measured value (PV) becomes
less than the value now being held. However, if the following operation is performed, the
value now being held is reset and as a result the Measured value (PV) just when reset
becomes the bottom hold value.
When the power is turned on or it is turned on again
When operation mode is changed from STOP to RUN
When hold reset
Continued on the next page.
B
PV1 bottom hold value monitor
The minimum PV value (bottom value) of Input 1 is held and displayed. Displayed only when
the hold function is provided.
Display range:
Input 1_input scale low to Input 1_input scale high
SET key
C
: Parameters related to multi-memory area function
: Parameters displayed when function is specified.