Allen-Bradley 1794-IE8H, User Manual, Page: 98 / 146

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