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Analog and hart pv – Rockwell Automation 1756-OF8H ControlLogix HART Analog I/O Modules User Manual

Page 175

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Rockwell Automation Publication 1756-UM533C-EN-P - February 2011

175

Tag Definitions Appendix A

Analog and HART PV

This table describes the input tags available in the Analog and HART PV data
format.

Ch02Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch02Fault.

Ch03Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch03Fault.

Ch04Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch04Fault.

Ch05Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch05Fault.

Ch06Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch06Fault.

Ch07Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch07Fault.

Ch08Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch08Fault.

Ch09Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch09Fault.

Ch10Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch10Fault.

Ch11Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch11Fault.

Ch12Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch12Fault.

Ch13Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch13Fault.

Ch14Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch14Fault.

Ch15Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch15Fault.

ChxxData
(Ch00…Ch15)

REAL

Float

Value of analog signal on Channel xx after conversion to engineering units.

CSTTimestamp

DINT[2]

Hex

Timestamp taken at the time the input data was sampled in terms of Coordinated System Time, which
is a 64-bit value in microseconds coordinated across the modules in the 1756 backplane.

RollingTimestamp

INT

Decimal

Timestamp taken at the time the input data was sampled in millisecond resolution.

Table 63 - Analog Only (AB:1756_IF16H_Analog:I:0)

Member Name

Type

Style

Description

Table 64 - Analog and HART PV (AB:1756_IF16H_HARTPV:I:0)

Member Name

Type

Style

Description

ChannelFaults
(bit0…15)

INT

Binary

Indicates a problem with analog data on Channel x or broken communication between the Logix
controller and the 1756-IF16H module.
Example: Set if analog signal is larger than 20 mA.

ChxxFault
(Ch0…Ch15)

BOOL

Decimal

ChannelFaults.0…ChannelFaults.15

Module Status

SINT

Binary

Calibrating

BOOL

ModuleStatus.0, Calibration in progress

UpdatedStatusReady

BOOL

ModuleStatus.1, Module has collected updated Additional Device Status from HART command 48.
This status can be retrieved by using the Read Additional Status service, 16#4C. For more
information about this service, see

Read Additional Status (Service Code = 16#4C) on page 125

.

ModuleFaults
(bits0…5 not used)

SINT

Binary

CalFault

BOOL

Decimal

ModuleFaults.6, 1756-IF16H Module Calibration Failed.

AnalogGroupFault

BOOL

Decimal

ModuleFaults.7, Indicates a fault has occurred on any channel (any of ChannelFaults).