Rockwell Automation 1756-OF8H ControlLogix HART Analog I/O Modules User Manual

Page 183

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

183

Tag Definitions Appendix A

Ch0NotANumber

BOOL

Decimal

Ch0Status:5
Ch0Data is not a valid floating point number.

Ch0OpenWire

BOOL

Decimal

Ch0Status:7 Only valid in current mode (example 4…20 mA). 1 indicates no current is flowing,
probably due to open circuit.

Ch1Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch1Fault.

Ch2Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch2Fault.

Ch3Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch3Fault.

Ch4Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch4Fault.

Ch5Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch5Fault.

Ch6Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch6Fault.

Ch7Status

SINT

Binary

Indicates various alarms on the analog signal. Also sets Ch7Fault.

Ch0Data

REAL

Float

Analog value actually output in engineering units. This might be different than output tag Ch0Data if
the value exceeds the LowLimit or HighLimit, has a MaxRampRate applied, is being Held for
initialization, or controller in Fault or Program mode

Ch1Data

REAL

Float

Analog value actually output in engineering units. This might be different than output tag Ch1Data if
the value exceeds the LowLimit or HighLimit, has a MaxRampRate applied, is being Held for
initialization, or controller in Fault or Program mode

Ch2Data

REAL

Float

Analog value actually output in engineering units. This might be different than output tag Ch2Data if
the value exceeds the LowLimit or HighLimit, has a MaxRampRate applied, is being Held for
initialization, or controller in Fault or Program mode

Ch3Data

REAL

Float

Analog value actually output in engineering units. This might be different than output tag Ch3Data if
the value exceeds the LowLimit or HighLimit, has a MaxRampRate applied, is being Held for
initialization, or controller in Fault or Program mode

Ch4Data

REAL

Float

Analog value actually output in engineering units. This might be different than output tag Ch4Data if
the value exceeds the LowLimit or HighLimit, has a MaxRampRate applied, is being Held for
initialization, or controller in Fault or Program mode

Ch5Data

REAL

Float

Analog value actually output in engineering units. This might be different than output tag Ch5Data if
the value exceeds the LowLimit or HighLimit, has a MaxRampRate applied, is being Held for
initialization, or controller in Fault or Program mode

Ch6Data

REAL

Float

Analog value actually output in engineering units. This might be different than output tag Ch6Data if
the value exceeds the LowLimit or HighLimit, has a MaxRampRate applied, is being Held for
initialization, or controller in Fault or Program mode

Ch7Data

REAL

Float

Analog value actually output in engineering units. This might be different than output tag Ch7Data if
the value exceeds the LowLimit or HighLimit, has a MaxRampRate applied, is being Held for
initialization, or controller in Fault or Program mode

CSTTimestamp

DINT[2]

Decimal

64-bit coordinated system time timestamp in microseconds of the last output update. Timebase
synchronized with other modules in the rack

RollingTimestamp

INT

Decimal

16 bit timestamp in milliseconds. Timebase local to the 1756-OF8H module.

Table 67 - Analog Only (AB:1756_OF8H_Analog:I:0)

Member Name

Type

Style

Description

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