Rockwell Automation 1403-NDNET DeviceNet Communications Card Installation Instructions - Manual (Page 57)

Publication 1403-IN054B-EN-P - August 2001
DeviceNet Data Tables B-27
Instance 23 Attributes (Snapshot configuration/readback record
select)
Assembly Structure
Attribute
ID Access
Rule Name DeviceNet
Data Type
3 Set Data Structure of
14 bytes (7 Words) (when Master Module firmware is
V2.10 or earlier)
22 bytes (11 Words) (when Master Module firmware
is V3.00 or later)
Param # Parameter name Data Type # bytes Description Default
Setting Word No.
1 Password Int 2 The correct password (0 to 9999) is required to
configure/reconfigure snapshot functionality, but not
required to select a snapshot record to be read back in
one of the 4 snapshot read assemblies. If the user is
only selecting a snapshot record to be read, set
password to –1. 0 1
2 Snapshot record to
be read Int 2 Specifies the snapshot record to be read in a
subsequent read of Instance 25 to 28, 50 to 55. The
range of this value depends on the snapshot log type
(parameter 8).
For 46 param record, range = 1 to 50
For 16 param record, range = 1 to 265
(1)
For 8 param record, range = 1 to 489
(1)
For 3&7 param record, range = 1 to 845
(1)
For 1 param record, range = 1 to 1861 (1)
1 specifies the most recent record.
1 2
3 Snapshot interval;
hours Int 2 Specifies the time interval (in hours) between saving of
snapshot records. Valid range is 0 to 32766. Setting
interval hours, minutes, and seconds to 0 disables
periodic logging of snapshot records. 0 3
4 Snapshot interval;
minutes Int 2 Specifies the time interval (in minutes) between saving
of snapshot records. Valid range is 0 to 99. 15 4
5 Snapshot interval;
seconds Int 2 Specifies the time interval (in seconds) between saving
of snapshot records. Valid range is 0 to 99. 0 5
6 Snapshot buffer
type Int 2 Specifies how the snapshot log (buffer) is filled.
0= Fill and stop (records are logged until the log is full
and then logging is halted).
1= Circular (once the log is full, the oldest record is
dropped and the new record gets added). 0 6
7 Clear snapshot log Int 2 Write a 1 here to clear the entire snapshot log,
otherwise write a 0. 0 7