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Math function, Watlow ez-zone, Rms module – Watlow EZ-ZONE RM-Scanner-Modul User Manual

Page 111: Chapter 6 features, Math overview

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Watlow EZ-ZONE

®

RMS Module

108

Chapter 6 Features

Logic

Off

Output Value = Off

Error

Source

D

Value

Source

F

Value

Source

E

Value

Source

H

Value

Output Value

Source

G

Value

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

A

Value

Source

B

Value

Source

C

Value

Math Function

Source

A

Value

Source

B

Value

Source

C

Value

Source

D

Value

Source

E

Value

Math

Overview

Instances - 24 per RMS

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

Range Low

Range H

igh

Pressure U

nits

Altitude U

nits

Scale Low

Scale H

igh

Function

Filter Offset

Output Value

Error

[SFn;A]

Source Function A : None, Analog Input, Current, Cool Power, Heat Power,

Power, Linearization, Math, Process Value, Set Point Closed, Set Point Open, Variable

[SFn;C]

Source Function C :

Power, Linearization, Math, Process Value, Set Point Closed, Set Point Open, Variable

None, Analog Input, Current, Cool Power, Heat Power,

[SFn;E]

Source Function E : None, Alarm, Compare, Counter, Digital I/O, Profile

Event Out A to H, Function Key, Logic, Timer, Variable

[SFn;b]

Source Function B :

Power, Linearization, Math, Process Value, Closed Loop Set Point, Open Loop Set
Point, Variable

None, Analog Input, Current, Cool Power, Heat Power,

[SFn;d]

Source Function D :

Power, Linearization, Math, Process Value, Set Point Closed, Set Point Open, Variable

None, Analog Input, Current, Cool Power, Heat Power,

[S2;A]

Source

A : 0 to 16

Zone

[S2;C]

Source

C : 0 to 16

Zone

[S2;E]

Source

E : 0 to 16

Zone

[S2;b]

Source

B : 0 to 16

Zone

[S2;d]

Source

D : 0 to 16

Zone

[Si;A]

Source

A : 1 to 250

Instance

[Si;C]

Source

C : 1 to 250

Instance

[Si;b]

Source

B : 1 to 250

Instance

[S;id]

Source

D : 1 to 250

Instance

[Fn]

Function : Off, Average, Process Scale, Deviation Scale, Switch Over, Differential,

Ratio, Add, Multiply, Absolute Difference, Minimum, Maximum, Square Root, Sample
and Hold, Pressure to Altitude, Dewpoint

[r;Lo]

Range Low : -1,999.0 to 9,999.0

[r;hi]

Range High : -1,999.0 to 9,999.0

[S;Lo]

Scale Low : -1,999.0 to 9,999.0

[S;hi]

Scale High : -1,999.0 to 9,999.0

[P;unt]

Pressure Units : PSI, Torr, mBar, Atmosphere, Pascal

[A;unt]

Altitude Units : Feet, Kilofeet

[FiL]

Filter : 0.0 to 60.0 seconds

[Si;E]

Source

E : 1 to 250

Instance

[MAt]

[`SEt]

Math Menu

Setup Page

[oFSt]

Offset : -1,999.000 to 9,999.000

[MAt]

[oPEr]

Math Menu

Operation Page

[Su;A]

Source

A : -1,999.000 to 9,999.000

Value

[Su;b]

Source Value B : -1,999.000 to 9,999.000

[Su;C]

Source Value C : -1,999.000 to 9,999.000

[Su;d]

Source Value D : -1,999.000 to 9,999.000

[Su;E]

Source Value E : Off, On

[o;u]

Output Value : -1,999.000 to 9,999.000

The Math function block accepts multiple inputs and per-
forms a programmed math function to derive an output
value with Filter and Offset values applied. 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 con-
stants and process 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