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CHAPTER 3 SPECIFICATIONS
3
3.4 Buffer Memory Assignment
3.4.2 Details of the buffer memory
(4) CH Temperature process value (PV) (Un\G9 to Un\G12)
The detected temperature value where sensor correction is performed is stored in this buffer memory area.
The value to be stored differs depending on the stored value in CH Decimal point position (Un\G1 to Un\G4).
( Page 86, Section 3.4.2 (2))
• No decimal place (0): Stored as it is.
• One decimal place (1): Stored after a multiplication by 10.
When value measured by a temperature sensor exceeds the temperature measurement range, the following value is stored.
• When measured value exceeds temperature measurement range: Input range upper limit + 5% of full scale
• When measured value falls below temperature measurement range: Input range lower limit - 5% of full scale
(5) CH Manipulated value (MV) (Un\G13 to Un\G16)
CH Manipulated value for heating (MVh) (Un\G13 to Un\G16)
CH Manipulated value for cooling (MVc) (Un\G704 to Un\G707)
The result of PID operation based on temperature process value (PV) is stored in these buffer memory areas.
The area Un\G13 to Un\G16 are used for heating in the case of the heating-cooling control. The following table
lists the range of value to be stored.
However, values are output in the range of 0% to 100%. For 0% or less and 100% or more, refer to the following.
• For 0% or less: 0%
• For 100% or more: 100%
Store description Store range in control Stored value when control stops
Manipulated value (MV) -50 to 1050 (-5% to 105.0%) -50 (-5.0%)
Manipulated value for heating
(MVh)
0 to 1050 (0.0% to 105.0%) -50 (-5.0%)
Manipulated value for cooling
(MVc)
Common
Standard
Heating-cooling
Heating-cooling