Assembly structure – Rockwell Automation 1403-NDNET DeviceNet Communications Card Installation Instructions User 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
For 3&7 param record, range = 1 to 845
For 1 param record, range = 1 to 1861
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