Rockwell-automation 1794-OF8IH FLEX Isolated Input/Output HART Analog Manual do Utilizador descarregar pdf (Página 76)

Publication 1794-UM065B-EN-E - September 2010

64 1794-IF8IH and 1794-OF8IH Configuration

Provide all data to the Primary Data table in Word Swap byte order, except the

MSW and EDT words (Words 0, 1 and 15), these remain in Little Endian byte

order.

The following tables are an example of the Primary Input Data, if BYTE

ORDER indicated Word Swap.

Default: 0

Fault Mode (8 of 1 bit)

Selects whether the channel fault detection is enabled or disabled. There is a

100 ms filter for wire off/lead break and short circuit detection.

Range: 0=Disable, 1= Wire off/ead break and short circuit fault detection

enabled.

Default: 0

Bus Communications and Module Fault Mode (1 of 1 bit)

This parameter determines how the Module Fault State is used for bus

communication and internal module faults. This parameter sets this

characteristic for the module.

Range: 0=Fault States activated by bus communication faults, 1=Fault States

activated by any failure (bus communications, wire off or short circuit if

detection enabled, for example.)

Partial Configuration Assembly After BYTE ORDER Inspection and Processing

1 Param A Ch2 Param B Ch2 Param A Ch1 Param B Ch1

2 Param C CH0 (2nd byte) Param C CH0 (low byte)

3 Param C CH0 (high byte) Param C CH0 (3rd byte)

Primary Input Data Before BYTE ORDER Processing for Little Endian

1 Ch2 Data A (REAL) (2nd byte) Ch2 Data A (REAL) (low byte)

2 Ch2 Data A (REAL) (high byte) Ch2 Data A (REAL) (3rd byte)

3 Ch2 Data C Ch 2 Data B

Primary Input Data After BYTE ORDER Processing for Little Endian

1 Ch2 Data A (REAL) (high byte) Ch2 Data A (REAL) (3rd byte)

2 Ch2 Data A (REAL) (2nd byte) Ch2 Data A (REAL) (low byte)

3 Ch2 Data C Ch 2 Data B

1 2 ... 71 72 73 74 75 76 77 78 79 80 81 ... 163 164

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Rockwell-automation 1794-OF8IH FLEX Isolated Input/Output HART Analog Manual do Utilizador Página 76