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Rockwell Automation 1794-OE8H FLEX I/O HART Analog Modules User Manual User Manual

Page 98

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Publication 1794-UM063A-EN-P - March 2006

B-6 FLEX I/O HART Module Commands

158

Read

Read special SCAN parameters

The current special parameters
and, if available, the transmitter
data are returned for the given
loop. These are:

• Loop number
• Error flag (0 = ok,

1 = special SCAN not
active)

• Polling address (always 0,

no multidrop)

• Minimum number of data

bytes for jubjub bird
special SCAN

• Selected SCAN command
• Long frame address
• Number of available data

bytes

• The data bytes themselves

(if any)

159

Write

Write special SCAN parameters

The threshold data length (0…62)
and the SCAN command to be
used can be written for the given
current loop and polling addresses
(must be 0)

164

Read

Cached data reply CMD 0, 13, 16 The results of commands 0, 13,

and 16 are combined in a response
protocol.

Table B.3 Device-Specific HART Module Commands

Command

Action

Meaning

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