Yokogawa digitalYEWFLO (DY-FF) - Manual (Page 77)

<APPENDIX 2. APPLICATION, SETTING AND CHANGE OF BASIC PARAMETERS>
A2-3
IM 01F06F00-01EN
(1)-2. Setting the output scale
FA0203.ai
Access the OUT_SCALE parameter.
Set the required unit in Unit Index of
OUT_SCALE.
Set the output value corresponding to the upper
range limit in EU at 100% of OUT_SCALE.
Set the output value corresponding to the lower
range limit in EU at 0% of OUT_SCALE.
Set the decimal point position in Decimal Point
of OUT_SCALE.
Example:
To set the output range to 0.00 to 100.00kg/h,
Set
kg/h(1324)* 1 in Units Index of OUT_SCALE,
Set 100 in EU at 100% of OUT_SCALE,
Set 0 in EU at 0% of OUT_SCALE,
and Set 2 in Decimal Point of OUT_SCALE.
The AI2 block performs the temperature output
calculation (option /MV).
(2)-1. Setting the calibration range
FA0204.ai
Access the XD_SCALE parameter.
Set the upper range limit in EU at 100% of
XD_SCALE.
Set the lower range limit in EU at 0% of
XD_SCALE.
Set the required unit in Unit Index of
XD_SCALE.
Example:
To measure 0 to 200°C,
Set EU at 100% of XD_SCALE to 200.
Set EU at 0% of XD_SCALE to 0.
Set Unit Index of XD_SCALE to 1001.* 1
(2)-2. Setting the output scale
FA0205.ai
Access the OUT_SCALE parameter.
Set the output value corresponding to the upper
range limit in EU at 100% of OUT_SCALE.
Set the output value corresponding to the lower
range limit in EU at 0% of OUT_SCALE.
Set the required unit in Unit Index of
XD_SCALE.
Example:
To set the output range to 0 to 100%,
Set EU at 100% of XD_SCALE to 100.
Set EU at 0% of XD_SCALE to 0.
Set Unit Index of XD_SCALE to 1342.* 1
*1: Each unit is expressed using a 4-digit numeric
code. Refer to Table 6.2 and Section 6.5
“Integral LCD Indicator”
(3) Setting the output mode
FA0206.ai
Access the L_TYPE parameter.
Set the output mode.
1: Direct
2: Indirect
3: IndirectSQRT (Sensor output value)
(Linear output value)
(Square root extraction
output value)*
1
*1: IndirectSQRT is not used for the digitalYEWFLO.
(4) Simulation
Perform simulation of each AI function block by
setting the desired value and status of the input
to the block.
FA0207.ai
Access the SIMULATE Value element of
SIMULATE and set the desired input value.
Access the SIMULATE Status element of
SIMULATE and set the desired status code.
Access the En/Disable element of the
SIMULATE parameter to enable simulation.
1: Disabled
2: Active
REMOTE LOOP TEST SWITCH is written to
SIM_ENABLE_MSG (index 1044) parameter of
the resource block.
If simulation is enabled, AI block uses
SIMULATE Status and SIMULATE Value as
the input, and if disabled, the AI block uses
Transducer Status and Transducer Value as
input.
Refer to Section 7.3 “Simulation Function.”