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Math function, Watlow ez-zone, Rml module – Watlow EZ-ZONE RM Limit Module Rev C User Manual

Page 101: Chapter 6 features

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Watlow EZ-ZONE

®

RML Module

98

Chapter 6 Features

Logic

Latch

Output Value follows A, unless B = ON

Latch Output while B = ON

Error

Source Value D

Source Value F

Source Value E

Source Value H

Output Value

Source Value G

Source Function A

Source Instance A

Source Zone A

Source Error A

Source Function B

Source Instance B

Source Zone B

Source Error B

Source Function C

Source Instance C

Source Zone C

Source Error C

Source Function D

Source Instance D

Source Zone D

Source Error D

Source Function E

Source Instance E

Source Zone E

Source Error E

Source Function F

Source Instance F

Source Zone F

Source Error F

Source Function G

Source Instance G

Source Zone G

Source Error G

Source Function H

Source Instance H

Source Zone H

Source Error H

Function

Error Handling

Source Value A
Source Value B

Source Value C

Logic

RS Flip Flop

A Sets Output Value ON

B Resets Output Value OFF

Error

Source Value D

Source Value F

Source Value E

Source Value H

Output Value

Source Value G

Source Function A

Source Instance A

Source Zone A

Source Error A

Source Function B

Source Instance B

Source Zone B

Source Error B

Source Function C

Source Instance C

Source Zone C

Source Error C

Source Function D

Source Instance D

Source Zone D

Source Error D

Source Function E

Source Instance E

Source Zone E

Source Error E

Source Function F

Source Instance F

Source Zone F

Source Error F

Source Function G

Source Instance G

Source Zone G

Source Error G

Source Function H

Source Instance H

Source Zone H

Source Error H

Function

Error Handling

Source Value A
Source Value B

Source Value C

Logic

Off

Output Value = Off

Error

Source Value D

Source Value F

Source Value E

Source Value H

Output Value

Source Value G

Source Function A

Source Instance A

Source Zone A

Source Error A

Source Function B

Source Instance B

Source Zone B

Source Error B

Source Function C

Source Instance C

Source Zone C

Source Error C

Source Function D

Source Instance D

Source Zone D

Source Error D

Source Function E

Source Instance E

Source Zone E

Source Error E

Source Function F

Source Instance F

Source Zone F

Source Error F

Source Function G

Source Instance G

Source Zone G

Source Error G

Source Function H

Source Instance H

Source Zone H

Source Error H

Function

Error Handling

Source Value A
Source Value B
Source Value C

Math Function

The Math function block accepts up to 4 Analog Inputs and
performs a programmed math function to derive an output
value with Filter and Offset values applied. One digital in-
put is used for enabling or disabling Process and Deviation
Scale and some math operations must be performed in the
user's units.

Functions may combine multiple inputs. Those

inputs may have incompatible units from a logical

point of view. As a result, unless otherwise indicated,

the presentation of the output value is the same as

Source A. This accommodates temperatures being

multiplied, divided and offset by constants and pro-

cess inputs.

Only inputs pointed to a source are used in the calcula-
tions.
An error, when read, can indicate any of the following:
None, Open, Shorted, Measurement Error, Bad Cal Data,
Ambient Error, RTD Error, Fail, Math Error, Not Sourced,
Stale