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Input range low, Input low signal, Input filter – Watlow Series D8 User Manual

Page 153: Input range low 135, Input low signal 135, Input filter 135

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Series D8 User’s Guide

Chapter 6: Menu and Parameter Reference

Doc. 0600-3120-2000

Watlow Anafaze

135

Input Range Low

For a process input, enter the low process variable for input

scaling purposes. This value will be displayed when the input

signal is at the level set for Input low signal.
This value and the value for Input low signal together define

one of the points on the scaling function’s conversion line. See

Setting Up a Process Input on page 88.

Values:

Any value between the minimum process variable for

the selected display format (see Table 6.10 on page 134) and

the value for Input range high.
Default:

0

Decimal Placement for DeviceNet

: See Decimal Placement

for Numeric Values on page 59.
DeviceNet Object:

Input (64 hex)

Input Low Signal

For a process input, enter the input signal level that corre-

sponds to the low process variable you entered for the Input
range low

parameter. The low signal is a percentage of the full

scale input range.

Values:

-99.9 to 999.8 (-999 to 9998) percent of full scale.

This value must be less than the value for Input high signal.

Values in parenthesis are for communications.
Default:

0

Decimal Placement for DeviceNet :

See Decimal Placement

for Percentage Values on page 60.

DeviceNet Object:

Input (64 hex)

Input Filter

Choose the amount of filtering to apply to the process variable

before the value is logged, displayed or used in the control cal-

culation. The input filter simulates a resistor-capacitor (RC)

filter. Use it to keep the process variable from varying unreal-

istically.
When enabled, the process variable responds to a step change

by going to two-thirds of the actual value within the specified

number of scans. One scan is 0.17 seconds for a four-loop

controller and 0.33 seconds for a eight-loop controller.

Values:

0 (off) to 255

Default:

3

DeviceNet Object:

Input (64 hex)

l01 Input ranger
low b 0

l01 Input low r
signal b .0%

l01 Input r
filter b 3scans