Bfm #40 (Ch1) And Bfm #59 (Ch2): Sensor Correction Value Setting (Pv Bias) - Mitsubishi Electric MELSEC FX2N-2LC User Manual

FX2N-2LC Temperature Control Block
7.2.23

BFM #40 (CH1) and BFM #59 (CH2): Sensor correction value setting (PV bias)

In BFM #40, set the sensor correction value of CH1. In BFM #59, set the sensor correction
value of CH2.
The actual input value is added (corrected) by the sensor correction value, then stored as the
measured value (BFM #3, BFM #4).
Use this correction value to correct the dispersion among sensors and the difference in the
measured value (PV) from those by other instruments.
The allowable set range is ±50.00%.
Example
Condition: To correct 2
At this time, the sensor correction value is as follows.
Sensor correction value = 2
The display value is as follows.
Display value = Measured value (PV) + Sensor correction value
Temperature
°
C in the range span of 400
Measured value (PV)
set value
(SV)
°
C
° °
C / 400 C x 100 = 0.5%
Correction value:2°C
Display
value
Actual measured value
Buffer Memory (BFM) 7
Time
7-14