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Command 129 – Rockwell Automation 1797-OE8H FLEX Ex HART Analog Modules User Manual User Manual

Page 128

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Publication 1797-6.5.3 - March 2006

B-4 FLEX Ex HART Module Commands

Command 129

With Command 129, Read Loop Status, the status of the current loop can be
read out. The following information is supplied:

• Hardware fault
• Rebuild running for this loop
• SCAN activated for this loop
• Searching transmitter (due to disappeared)
• Transmitter not responding (due to disappeared)
• Transmitter responding again (due to appeared)
• Another transmitter responded instead (due to mismatched)

13

LOC_MET

Locate method

0 = Single analog
(short address 0
only).

14

SCAN_CMD

Scan command

1 = Command 1
2 = Command 2
3 = Command 3

15

SCAN_EN

General scan status

0 = Scan disabled
1 = Normal scan
enabled
2 = Special scan
enabled

16

BUSY_RETRY

Number of retries for a busy response from
instrument

0…11

17

OTHER_RETRY

Number of retries for a other error from
instrument

0…11

Command-specific Response Codes

16

Error

Access restricted

32

Error

Busy

Table B.4 Command 129 Request and Response Data Bytes

Byte

Description

Value

Request Data Bytes

0

CH_NUM

HART channel number

0…7

Table B.3 Command 128 Response Data Bytes

Byte

Description

Value

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