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Ez-zone modbus instruments, Ez-zone alarm, Ez-zone analog input – Watlow SpecView from Watlow User Manual

Page 37: Ez-zone communications, Ez-zone control loop, Ez-zone current, Ez-zone digital i/o, Ez-zone limit, Ez-zone set points

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SpecView from Watlow

 37 

Watlow Addendum

EZ-ZONE Modbus Instruments

Watlow recommends using Standard Bus communications between SpecView and EZ-ZONE products
because there are many advantages including automatic detection. However, there are situations where it
may be preferable to use Modbus RTU or Modbus TCP. For these cases the following instruments are
offered. The tables below list the parameters supported by these instruments.

EZ-ZONE Alarm

State

High Set Point

Low Set Point

Clear Request

Silence Request

EZ-ZONE Analog Input

Input Value

Error Status

Cal Offset

Clear Latch

EZ-ZONE Communications

Display Units

Non-volatile Save

EZ-ZONE Control Loop

Control Mode

Control Mode Active

Heat Prop Band

Cool Prop Band

Time Integral

Time Derivative

Dead Band

Heat Hysteresis

Cool Hysteresis

Heat Power

Cool Power

Output Power

TRU-TUNE+ Enable

Autotune Request

Autotune Status

EZ-ZONE Current

Read

Reading RMS

Error

Heater Error

High Set Point

Low Set Point

EZ-ZONE Digital I/O

Input State

Output State

Direction

EZ-ZONE Limit

State

Status

Low Set Point

High Set Point

Clear Request

EZ-ZONE Set Points

Clsd-Loop Set Point

Open Loop Set Point

Clsd-Loop Working SP

Open Loop Working SP

Idle Set Point

Ramp Working SP

Ramp Target SP