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Function block descriptions, Action function, Alarm function – Watlow EZ-ZONE RM Limit Module Rev C User Manual

Page 91

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Watlow EZ-ZONE

®

RML Module

88

Chapter 6 Features

Alarm Function

The Alarm function will cause the output to change

states when Alarm Source exceeds Alarm Set Points.

Alarm

Overview

Instances - 16 per RML

Alarm Latc

hing

Alarm Bloc

king

Alarm Silencing

Alarm Hysteresis

Alarm Clear Request

Alarm Silence Request

Alarm

Type

Control LoopAlarm Logic

Alarm Sides

Alarm Displa

y

Alarm Dela

y Time

Alarm Low Set P

oint

Alarm High Set P

oint

[`S2;A]

Alarm Source Zone : 0 to 16

[LooP]

Control Loop : 1 to 4

[`iS;A]

Alarm Source Instance : 1 to 250

[`A;ty]

Alarm Type : Off, Process

[`A;Lg]

Alarm Logic : Close on Alarm, Open on Alarm

[`A;Si]

Alarm Silencing : Off, On

[`A;LA]

Alarm Latching : Non-Latching, Latching

[`A;dL]

Alarm Delay Time : 0 to 9,999 seconds

Alarm Clear Request : Ignore, Clear
Alarm Silence Request : Ignore, Silence

[`A;hi]

Alarm High Set Point : -1,999.000 to 9,999.000

[`A;hy]

Alarm Hysteresis : 0.001 to 9,999.000

[`A;bL]

Alarm Blocking : Off, Startup, Set Point, Both

[`A;Sd]

Alarm Sides : Both, High, Low

[A;dSP]

Alarm Display : Off, On

[`A;Lo]

Alarm Low Set Point : -1,999.000 to 9,999.000

Alarm Clearable : No, Yes

Alarm Latched : No, Yes
Alarm Silenced : No, Yes

Output Value : On, Off

Error : None, Open, Shorted, Measurement Error, Bad
Cal Data, Ambient Error, Fail, Not Sourced

Alarm Working Set Point : -1,999.000 to 9,999.000

Alarm Working Process Value : -1,999.000 to 9,999.000

Output Value

Alarm Clearable

Alarm Working Process Value

Alarm Working Set Point

Alarm Latched

Alarm Silenced

Alarm State

[ALM]

Alarm Menu

[`SEt]

Setup Page

[ALM]

Alarm Menu

[oPEr]

Operation Page

Error

Alarm State : Startup, None, Blocked, Alarm Low,
Alarm High, Error

Alarm Source

Alarm Source Instance

Alarm Source Zone

Alarm Source Error

Control Loop

[`sr;a]

Alarm Source : None, Analog Input, Current,

Power, Linearization, Math, Process Value,

Variable, Current Read

[`A;Lo]

Alarm Low Set Point : -1,999.000 to 9,999.000°F

[`A;hi]

Alarm High Set Point: -1,999.000 to 9,999.000°F

[a;Clr]

Alarm Clear Request : 0

[a;sir]

Alarm Silence Request : 0

[`a;st]

Alarm State: Startup, None, Blocked, Alarm Low,

Alarm High, Error

Function Block Descriptions

Each of the next several pages graphically shows each of
the RML function blocks. Note that as you view each you
will find text that is black and text that appears gray. The
gray text represents inputs that are not currently available
based on the functions defined use (red text). For instance,
when the defined use of the Analog Input function is set
for RTD, TC Linearization will appear gray. Ranges speci-
fied are in units or degrees F, if expressed in degrees C, the
range will be smaller.

Action Function

The Action Function will cause the action selected

to occur when Source Function A = ON and Active

Level = High. The active level specifies when the ac-

tion occurs. A digital value that is high causes the

action function when Active Level = High. A digital

value that is low causes the action function when Ac-

tive Level = Low. Based on a given input (Digital I/O,

Event output, Logic function, etc), the Action func-

tion can cause other functions to occur. To name a

few, starting and stopping a profile, silencing alarms,

turn control loops off and placing alarms in non-

alarm state.

Note:

Note: Action Function selection is module type and

part number dependant.

[``Fi]

Function Instance : 0 to 25

[`Leu]

Active Level : High, Low

[`Si;A]

Source Instance A : 1 to 250

[`S2;A]

Source Zone A : 0 to 16

Action

Overview

Instances - 8 per RMC

Active Level

Function Instance

Action Function

Event Status

Source Function A

Source Instance A

[`E;iS]

Event Status : On, Off

[`ACt]

Action Menu

[`SEt]

Setup Page

[`ACt]

Action Menu

[oPEr]

Operation Page

[``fn]

Action Function : None, User Set Restore, Limit Reset

*

,

Alarm,

Silence Alarms, Control Loops Off and Alarms to Non-alarm

State, Force Alarm to Occur, Idle Set Point, Tune, Manual,

Switch Control Loop Off, Remote Set Point, TRU-TUNE+

Disable, Profile Disable, Profile Hold/Resume, Start Profile,

[sfn;a]

Source Function A : None, Alarm, Compare, Counter, Digital

I/O, Profile Event Out A to H, Function Key, Limit, Logic,

Timer, Variable

*

Not available in firmware release 6.0 and above