Honeywell Series A - Page 543

18. Appendix I
18.2. Description
R400 Experion PKS Series A Fieldbus Interface Module User's Guide 543
July 2010 Honeywell
Tab
Parameter Default Value Description
Preset Addr Wait
Timer
(T3)
45.0000s
Specifies the preset value for
the set address wait timer in
seconds. The default value is
specified by the
communications profile for the
application area.
This timer allows time for a
device at a new address to be
accessed and added to the
delegated token list of the LAS.
Def Min Token
Delegation Time
(LMINFREC.DMDT)
88
Defines the default minimum
amount of local link capacity
that the LAS allocates to a
single Pass Token Data Link
Protocol Data Unit (PT DLPDU)
sent to the Data Link Entity
(DLE). Its range is 32 to 32767,
its default value is 84 + Data
Link Protocol Data Units
(DLPDU) Physical Layer
Overhead (PhLO) value, which
permits the sending of one
URGENT DLPDU, and its unit is
the transmission duration of one
octet.
Network
Management
(LM)
Def Token Hold Time
(LMINFREC.DTHT)
280
Defines the default initial
amount of local link capacity
that the LAS DLE allocates to
each DLE, in one cycle of
"circulating the token", when the
LAS sends one or more PT
DLPDUs to the DLE. Its range is
276 to 65000 and its default
value is 276 + Data Link
Protocol Data Units (DLPDU)
Physical Layer Overhead
(PhLO) value, which permits the
sending of one
URGENT
DLPDU, and its unit is the
transmission duration of one
octet.