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Rockwell Automation 1756-OF8I ControlLogix Eight-channel Isolated Analog I/O Modules  User Manual

Page 184

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184

Rockwell Automation Publication 1756-UM540A-EN-P - May 2014

Appendix A

Isolated Analog I/O Module Tag Definitions

Ch[x].AlarmDisable

BOOL

Disables all alarms on the module.

0 = Enabled

1 = Disabled (default)

Ch[x].ProcessAlarmLatch

BOOL

Latches all Process alarms if they are configured not clear
until explicitly unlatched.

0 = Latching disabled (default)

1 = Latching enabled

Ch[x].RateAlarmLatch

BOOL

Latches all Rate alarms when they are configured not to
clear until explicitly unlatched.

0 = Latching disabled (default)

1 = Latching enabled

Ch[x].Disable

BOOL

Disables the channel.

0 = Enabled (default)

1 = Disabled

Ch[x]. TempEnglish

BOOL

Used with the TempAbsolute tag for the same channel to
determine the temperature units for the channel when
linearizing (non-zero sensor type).

0 = Standard (default)

1 = English
IMPORTANT: The combination of
this value with that of the
TempAbsolute tag value determine
the temperature unit used.
For example, if TempEnglish = 0
and TempAbsolute = 0, the
combination is 00.
Thus, Celsius units are used.
The following combinations are
possible:

00 = Celsius

01 = Fahrenheit

10 = Kelvin

11 = Rankine

Ch[x].TempAbsolute

BOOL

Used with the TempEnglish tag for the same channel to
determine the temperature units for the channel when
linearizing (non-zero sensor type).

0 = Familiar (default)

1 = Absolute
IMPORTANT: See the TempEnglish
tag Valid Values description for
more information on using this tag’s
value.

Ch[x].FourWireRTD

BOOL

Sets what type of RTD, that is, 3-wire or 4-wire, is
connected to the channel.

0 = 3-wire RTD (default)

1 = 4-wire RTD

Ch[x].SynchronizeSampling

BOOL

Determines if the sampling of the channel is synchronized
with other channels configured for synchronized
sampling.

0 = Not synchronized (default)
1 = Synchronized

Ch[x].TenOhmOffset

INT

Specific offset for 10 Ohm Copper Sensor Type.
Value is measured in Hundredths of Ω with 2 implied
decimal places.

-100…100 in hundredths of Ω
0 = default

Table 23 - 1756-IRT8I Module - Configuration Tags

Tag Name

Size

Definition

Valid Values