Rockwell Automation 1756-XXXX ControlLogix Digital I/O Modules User Manual

Page 191

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Rockwell Automation Publication 1756-UM058G-EN-P - November 2012

191

Tag Definitions

Appendix B

Pt[x].Data

BOOL

Input Status—Indicates whether an input point is On or Off.
0 = The input point is Off.
1 = The input point is On.

Connection = Data or Listen Only
Input Data = Data or Timestamp Data
or
Connection = Data with Event or Listen
Only with Event
Input Data = Timestamp Data

Pt[x].Fault

BOOL

Quality of Data after Fault—Indicates whether input data for a faulted point is correct
or incorrect.
0 = No fault
1 = Fault

Connection = Data or Listen Only
Input Data = Data or Timestamp Data
or
Connection = Data with Event or Listen
Only with Event
Input Data = Timestamp Data

Pt[x].NewDataOffOn

BOOL

New Data Off to On—Captures short duration pulses for Off to On transitions. A
captured pulse remains latched until acknowledged via the Pt[x].NewDataOffOnAck
output tag. For more information, see

page 86

.

0 = No new Off to On transitions have occurred since the last acknowledgement.
1 = A new Off to On transition has occurred, but has not yet been acknowledged.

Connection = Data or Listen Only
Input Data = Data or Timestamp Data
or
Connection = Data with Event or Listen
Only with Event
Input Data = Timestamp Data

Pt[x].NewDataOnOff

BOOL

New Data On to Off—Captures short duration pulses for On to Off transitions. A pulse
remains latched until acknowledged via the Pt[x].NewDataOnOffAck output tag. For more
information, see

page 86

.

0 = No new On to Off transitions have occurred since the last acknowledgement.
1 = A new On to Off transition has occurred, but has not yet been acknowledged.

Connection = Data or Listen Only
Input Data = Data or Timestamp Data
or
Connection = Data with Event or Listen
Only with Event
Input Data = Timestamp Data

Pt[x].TimestampDropped

BOOL

Dropped Timestamp—Indicates whether a timestamp was lost as a result of one of the
following:
The corresponding bit was set in the LatchTimestamps configuration tag, so a new

timestamp was not recorded because the previous timestamp was latched.

The corresponding bit in the LatchTimestamps configuration tag was not set, but a

timestamp was replaced by a new timestamp because the previous timestamp was not
acknowledged via the Pt[x].NewDataOffOnAck or Pt[x].NewDataOnOffAck output tags.

0 = A timestamp was not dropped.
1 = A timestamp was dropped.

Connection = Data, Data with Event,
Listen Only, or Listen Only with Event
Input Data = Timestamp Data

Pt[x].CIPSyncValid

BOOL

CIP Sync Is Valid—Indicates whether CIP Sync is available on the backplane.
0 = CIP Sync is not available.
1 = CIP Sync is available.

Connection = Data, Data with Event,
Listen Only, or Listen Only with Event
Input Data = Timestamp Data

Pt[x].CIPSyncTimeout

BOOL

CIP Sync Timeout—Indicates whether a valid time master on the backplane has timed
out.
0 = A time master is either not detected on the backplane or is valid. See
Pt[x].CIPSyncValid.
1 = A valid time master was detected on the backplane, but the time master has timed
out.

Connection = Data, Data with Event,
Listen Only, or Listen Only with Event
Input Data = Timestamp Data

Pt[x].InputOverrideStatus

BOOL

Input Override Status—Indicates whether local inputs are being overridden by the
value in the Pt.[x].DataOverrideValue output tag because the corresponding bit in the
Pt[x].DataOverrideEn output tag is set.
0 = Inputs are not being overridden.
1 = Inputs are being overridden.

Connection = Data, Data with Event,
Listen Only, or Listen Only with Event
Input Data = Timestamp Data

Pt[x].Timestamp.OffOn

DINT

Off to On Timestamp—Records a 64-bit timestamp for the input point’s last transition
to On. The timestamp is in CIP Sync time.

Connection = Data, Data with Event,
Listen Only, or Listen Only with Event
Input Data = Timestamp Data

Pt[x].Timestamp.OnOff

DINT

On to Off Timestamp—Records a 64-bit timestamp for the input point’s last transition
to Off. The timestamp is in CIP Sync time.

Connection = Data, Data with Event,
Listen Only, or Listen Only with Event
Input Data = Timestamp Data

Table 44 - 1756-IB16IF Module Input Tags (continued)

Name

Data Type

Tag Definition

Module Definition

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