TLV SC-F71, Instruction Manual

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172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021
297
To use regular Memory area function
Input 1_Level PID action selection in Function block No. 51 (Engineering mode)
and Input 2_Level PID action selection in Function block No. 52 (Engineering
mode) can be used as a regular
Memory area function in the case of “Switching
by Memory area number” (Factory set value).
Memory area display at Level PID
PID values used for control are changed by the Level PID, but the control area
is not influenced. This means that the Memory area No. on the PV/SV monitor
screen in the Monitor & SV setting mode remains unchanged.
To check the Memory area No. actually used by the Level PID, locate the
parameter used in the Level PID in the Parameter setting mode. Then, the
actual Memory No. will be displayed. (See the example below)
[Example] In this example, Area 3 is displayed on the instrument (as a control
area). Parameter “P” is displayed to show the Memory area No.
actually used by the Level PID.

Parameters for Memory area function
In Memory areas 1 through 16, parameters in [Group 0] can be used for the regular
Memory area function. The parameters for the changed Memory area will be
available by switching the Memory areas of the control area by the front key,
communication, Digital input (DI), Simple ramp/soak function or Simple sequence
function.
Refer to Parameters in each group for the parameters in Group 0.

Example of action of the Memory area when setting simple ramp/soak program
at Level PID
[
When “1: Switching by Set value (SV) (Level PID action)” is selected in Level PID
action selection]
Monitor & SV setting mode
1. P
280
3 0 0
.
.
5 0030 0 .
AREA AREA
PV/SV monitor
Parameter group No.51
Input 1_Proportional band
Parameter setting mode
[heat-side]
Change the Parameter
setting mode
Displays the Memory
area number selected
by Level PID function Displays the Memory
area number in the
Control area