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Ambient sensor reading, Ambient sensor reading 155, Table 6.18—system status bits 155 – Watlow Series D8 User Manual

Page 173

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Series D8 User’s Guide

Chapter 6: Menu and Parameter Reference

Doc. 0600-3120-2000

Watlow Anafaze

155

Table 6.17

Bit Positions for Alarm Status and
Alarm Acknowledge

Ambient Sensor Reading

This read-only parameter indicates the temperature measured

by the cold-junction compensation sensor located near the an-

alog input terminal block.
This parameter is available only for communications pro-

grams.

Values:

Temperature in tenths of a degree Fahrenheit. To

convert to Celsius, use the formula °C = 5/9 (°F - 32).
DeviceNet Object:

Global (6 hex)

Table 6.18

System Status Bits

Alarm

Bit

Low Deviation Alarm

Third

High Deviation Alarm

Fourth

Alarm Low

Fifth

Alarm High

Sixth

Thermocouple Reversed

Seventh

Thermocouple Shorted

Eighth

Thermocouple Open

Ninth

RTD Open

Tenth

RTD Fail

Eleventh

Parameter

Description

Values

DeviceNet

Object

Battery Status

Indicates whether the values in RAM have

been corrupted while the power has been

off.

0: No corruption

detected

1: Data corrupted

Global (6)

Hardware

Ambient Status

Indicates whether the ambient temperature

is within the controller’s operating range. If

the ambient is out of range, the controller

sets all loops to manual mode at 0 percent

power.

0: Within range

1: Outside of range

Global (6)

Hardware Offset

Status

Indicates whether the zero self-calibration

measurement falls within acceptable limits.

0: In calibration

1: Out of calibration

Global (6)

Hardware Gain

Status

Indicates whether the full scale self-calibra-

tion measurement falls within acceptable

limits.

0: In calibration

1: Out of calibration

Global (6)