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Job select inputs, Job select input polarity – Watlow CLS User Manual

Page 73

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Setup

CLS User’s Guide 65

Job Select Inputs

Use this menu to set the number of job select inputs. The controller uses
these inputs as a binary code that specifies the job number to run. The
number of inputs you choose in this menu controls the number of jobs
you can select remotely.

Below is the truth table that tells you which input states select which
jobs.

Selectable values: 1, 2, or 3 inputs, or None. These choices have the
following effect:

Job Select Input Polarity

Use this menu to set the polarity of the digital outputs used for job
selection.

Selectable values: High or Low.

When nothing is connected, the inputs are all False and Job 1 is selected
(as shown in the truth table above).

Digital Input 3

Digital Input 2

Digital Input 1

Job #

F

F

F

1

F

F

T

2

F

T

F

3

F

T

T

4

T

F

F

5

T

F

T

6

T

T

F

7

T

T

T

8

Setting

Enables

1 input

Jobs 1-2

2 inputs

Jobs 1-4

3 inputs

Jobs 1-8

None (no inputs)

Remote Select disabled

LOOP PROCESS UNITS

ALARM SETPOINT STATUS OUT%

JOB SELECT
DIG INPUTS ? NONE

LOOP PROCESS UNITS

ALARM SETPOINT STATUS OUT%

JOB SEL DIG INS
ACTIVE ? LOW