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

Page 192

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192

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

Appendix A

Isolated Analog I/O Module Tag Definitions

Ch[x].ProgToFaultEn

BOOL

Determines channel action if a connection faults while
the module is in a safe state for Program mode.
The channel can remain in the safe state for Program
mode or transition to a safe state for Fault mode.
If the channel remains in safe state for Program mode, the
C.Ch[x].FinalFaultState tag value is ignored.

0 = Channel remains in the safe

state for Program mode

1 = Channel transitions to the

safe state for the Fault mode

Ch[x].ClampingDisable

BOOL

Disables Clamping on the channel.

0 = Clamping enabled

1 = Clamping disabled (default)

Ch[x].RampInRun

BOOL

Enables Output Ramping when the module is in
Run mode.
Output changes during Run mode are limited to the
C.Ch[x].MaxRampRate tag value.

0 = Ramping disabled (default)

1 = Ramping enabled in

Run mode

Ch[x].RampToProg

BOOL

Enables Output Ramping when the channel is
transitioning to Program mode.
Output changesduring Program mode are limited to the
C.Ch[x].MaxRampRate tag value.

0 = Ramping disabled (default)

1 = Ramping enabled to

Program mode state

Ch[x].RampToFault

BOOL

Enables Output Ramping when the channel is
transitioning to Fault mode.
Output changes during Fault mode are limited to the
C.Ch[x].MaxRampRate tag value.

0 = Ramping disabled (default)

1 = Ramping enabled to Fault

mode state

Ch[x].Disable

BOOL

Disables the channel.

0 = Channel enabled (default)

1 = Channel disabled

Ch[x].FaultValueStateDuration

SINT

Determines the length of time the C.Ch[x].FaultValue tag
value is held prior to the C.Ch[x].FaultFinalState being
applied.

0 = Hold forever (default)

Any of the following:

1, 2, 5, or 10 seconds

Ch[x].OutputRange

SINT

Channel’s operating range.

0 = -10…10V
1 = 0…20 mA (default)
2 = 0…5V
3 = 0…10V

Ch[x].MaxRampRate

REAL

Maximum rate at which the channel can transition to in
Engineering Units/Second.
This tag is used only if at least one of the following tags
is enabled:
C.Ch[x].RampInRun
C.Ch[x].RampToFault
C.Ch[x].RampToProgram

Any value > 0.0
1,000,000.00 = default

Ch[x].FaultValue

REAL

Value to which the channel changes if the following
events exist:
Connection is lost
C.Ch[x].FaultMode tag is enabled

Any
0.0 = default

Table 26 - 1756-OF8I Module - Configuration Tags

Tag Name

Size

Definition

Valid Values

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