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"Common-practice" commands:
Command
Reset "Configuration
"
38
changed" flag
"
41
Perform device self test
"
42
Perform device reset
Read additional device
!
48
status
Write number of the
"
59
response preambles
Delete all delayed
"
106
responses pending for
the host
"Device specific" commands:
Command
Read parameterisation of the mul-
!
128
tiplexer
! Read loop status
129
Read transmitter list (max. 49 ent-
!
130
ries, beginning with the given
index)
Read static data of up to 22 trans-
!
131
mitters
Write static data of up to 22 trans-
"
132
mitters
Remove transmitter from transmit-
"
133
ter list (max. 35 at the same time)
Read SCAN list (max. 49 entries,
!
134
beginning with the given index)
Read dynamic data of up to 7
!
135
transmitters
Read SCAN status of up to 31
!
136
transmitters
Subject to reasonable modifications due to technical advances.
Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
Action
Reset the "Configuration changed" response code, see section
5.3.3.
Initiates the self test function in the device (as during power up); if
no error occurs the response code "malfunction" (see section 5.3.3)
is cleared (if set).
Immediately after the response the microprocessor of the device
will be reset.
See section 5.4.
The number of preambles insert in response telegrams can vary
from 2 to 20. Default setting is 4.
All pending response telegrams are deleted. Because only one
response buffer exists, the buffer is always deleted (independent
from the initiating host) in accordance with the specification.
Action
HART Multiplexer Master KFD2-HMM-16
Meaning
Meaning
The actual parameterisation is read out of the multi-
plexer.
With this command 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 ("disappeared")
•
Transmitter responding again ("appeared")
•
An other transmitter responded instead ("mismat-
ched")
The long frame addresses of up to 49 transmitters are
returned beginning at the given index.
For the given long frame addresses the function returns
the following transmitter data:
•
Current loop number (0. ..15)
•
Polling address
•
Supported HART revision
•
Minimum count of required preambles (5 ... 20)
Write static data (see 131). Values out of the range
5 ... 20 will be set to 5 or 20, respectively.
Transmitters with the given long frame addresses will be
removed from the transmitter list (and the SCAN list).
The long frame addresses of up to 49 transmitters are
returned beginning at the given index.
For the given long frame addresses the function returns
the following transmitter data:
•
the selected SCAN command
•
long frame address
•
HART data
For the given long frame addresses, this command
returns the SCAN status of the transmitters (0=SCAN
disabled, 1=SCAN enabled)
Copyright Pepperl+Fuchs, Printed in Germany
Appendix
29
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