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Table 8.25 Sm Sync And Scheduling Objects; Table 8.26 Sm Address Assignment Objects - Flowserve Logix 3400IQ User Instructions

Digital positioner
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Sync and Scheduling Objects
These objects are used by system management to provide application clock synchronization and
macro cycle scheduling for the device. Table 8.25 identifies the sync and scheduling objects with their
object directory index and default values.

Table 8.25 SM Sync and Scheduling Objects

Object
Description
CURRENT_TIME
The current application clock time.
LOCAL_TIME_DIFF
Used to calculate local time from CUR-
RENT_TIME.
AP_CLOCK_SYNC_
The interval in seconds between time
NTERVAL
messages on the link (bus).
TIME_LAST_RCVD
The application clock time contained in
the last clock message.
PRIMARY_AP_TIME_
The node address of the primary time
PUBLISHER
publisher for the local link (bus).
TIME_PUBLISHER_ADDR The node address of the device which
sent the last clock message.
Unused
MACROCYCLE_DURA-
The length of the macro cycle in 1/32 of
TION
a millisecond ticks.
Device ID, Tag Name and Device Address
Each fieldbus device on the network is uniquely identified by:
Device ID that is set by the manufacturer to identify the device.
Device Name (Tag) - set by the user to identify operation
Device Address - a unique numerical address on the fieldbus segment. Address may be set
automatically by system management.
Address Assignment Objects
Table 8.26 is a description of the address assignment objects with their object directory index and
default values.

Table 8.26 SM Address Assignment Objects

Object
Description
DEV_ID
The device ID set by the
manufacturer.
PD_TAG
The physical device tag to be set
using SET_PD_TAG service.
OPERATIONAL_
Controls the state of SM of the
POWERUP
device upon power-up.
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07
OD
Default Value
index
262
Dynamic
263
0
264
Set by SM (mgr.) during
address assignment
265
Dynamic
266
Set by SM (mgr.) during
address assignment
267
Dynamic
268
269
Set by SM (mgr.) during
address assignment
OD index
Default Value
270
464C530201-VAL-LX1
400-0nnnnnnnn
271
All Spaces
272
TRUE (SM goes opera-
tional after power up)

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