Rockwell-automation 1794-OF8IH FLEX Isolated Input/Output HART Analog Manual do Utilizador descarregar pdf (Página 44)

Publication 1794-UM065B-EN-E - September 2010

32 1794-IF8IH and 1794-OF8IH Configuration

1794-IF8IH I/O Profile

All Allen Bradley FLEX I/O modules have a sixteen word table of Real Time

Data (RTD) to be transferred between the controller and the I/O module.

Not all 16 words need be allocated. The IF8IH has the following RTD IO

Profile:

In addition to the RTD, the module uses EDT for Configuration and HART

data. The IF8IH has the following EDT IO Profile:

Configuration Parameters

The configuration is shown in the table below. These are normal module

configuration items and are sent to the module. Configuration is located at

EDT assembly 37.

RTD Index Assembly/Index Asembly

RTD 0 MSW Module Status Word

RTD 1 EDT Read Word EDT Read Word

RTD 2…9 I:0…I:7 RTD Input Data

RTD 10…14 S:0…14 RTD Input Data

RTD 15 EDT Write Word EDT Write Word

Nunmber of Word EDT Assembly

42 EDT Configuration Data

98 Cyclic EDT HART Input Data (Accessed in eight 24 byte Assemblies)

48 EDT Output Pass-Through message request buffer A

48 EDT Output Pass-Through message request buffer B

48 EDT Input Pass-Through message request buffer A

48 EDT Input Pass-Through message request buffer B

Configuration Parameters

Word Bit

1514131211109876543210

0 R R F7F6F5F4

BOB

(1)

RRF3F2F1F0

BOA

(1)

1 DH7 DH6 DH5 DH4 DH

DH2 DH1 DH0

Reserved

(2)

2 CH 3 Format CH 2 Format CH 1 Format CH 0 Format

3 CH 7 Format CH 6 Format CH 5 Format CH 4 Format

4 CH1 HART Current Ratio FLTR1 CH0 HART Current Ratio FLTR0

1 2 ... 39 40 41 42 43 44 45 46 47 48 49 ... 163 164

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Rockwell-automation 1794-OF8IH FLEX Isolated Input/Output HART Analog Manual do Utilizador Página 44