Watlow EZ-ZONE RMC - Manual (Page 184)

Watlow EZ-ZONE ® RMC Module • 181 • Chapter 7 Features
Source Function A
Source Instance A
Source Zone A
Source Error A
Output Value
Source Value A
Error
Linearization
Interpolated
Units
Function
Input P
oint 1
Output P
oint 1
Output P
oint 2
Output P
oint 3
Output P
oint 4
Output P
oint 5
Output P
oint 6
Output P
oint 7
Output P
oint 8
Output P
oint 9
Output P
oint 10Offset
Input P
oint 2
Input P
oint 3
Input P
oint 4
Input P
oint 5
Input P
oint 6
Input P
oint 7
Input P
oint 8
Input P
oint 9
Input P
oint 10
IF Source A < Input Point 1 THEN Output Value =
Output Point 1 + Offset
ELSE WHILE ((Source A > Input Point n) AND (In-
put Point n < Input Point n+1)) n = n+1 UNTIL n is
largest valid value. IF ((Source A >= Input Point n-1)
AND (Input Value < Input Point n)) THEN Output
Value = (Source A - Input Point n-1) * (Output Point n
- Output Point n-1) / (Input Point n - Input Point n-1)
+ Output Point n-1 + Offset ELSE Output Value =
Output Point n + Offset WHERE n = 1 to 10
Source Function A
Source Instance A
Source Zone A
Source Error A
Output Value
Source Value A
Error
Linearization
Stepped
Units
Function
Input P
oint 1
Output P
oint 1
Output P
oint 2
Output P
oint 3
Output P
oint 4
Output P
oint 5
Output P
oint 6
Output P
oint 7
Output P
oint 8
Output P
oint 9
Output P
oint 10Offset
Input P
oint 2
Input P
oint 3
Input P
oint 4
Input P
oint 5
Input P
oint 6
Input P
oint 7
Input P
oint 8
Input P
oint 9
Input P
oint 10
WHILE (Source A < Input Point n) n = n+1 FROM n
= 2 UNTIL n is largest valid value
Output Value = Output Point n-1 + Offset
Note: if Source A < Input Point 2 then Output Value
= Output Point 1; if Source A < Input Point 3 then
out = Output Point 2; etc If Source A > last Input
Point the Output Value = last Output Point.
The list of Input Point values are assumed to be in
increasing order. If Input Point n < Input Point n-1
THEN Output Value = Output Point n-1
Logic Function
Logic
Overview
Instances - 4 per RMC
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
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