Rockwell Automation 1403-NDNET DeviceNet Communications Card Installation Instructions - Manual (Page 73)

Publication 1403-IN054B-EN-P - August 2001
DeviceNet Data Tables B-43
Instance 37 Attributes (Oscillography data)
Assembly Structure
Attribute ID Access
Rule
Name DeviceNet Data Type
3 Get Data Structure of
50 bytes (25 Words)
Param
# Parameter name Data
Type # bytes Description Word No.
1 Timestamp of Oscillogram Int x 4 8 Year 1
Month = Value/256
Day = Remainder of Value/256 2
Hour = Value/256
Minute = Remainder of Value/256 3
Seconds = Value/256
Hseconds = Remainder of Value/256 4
2 Channel number Int 2 Indicates the channel associated with the data returned in
this table.
1 = Capture #1 V1 11 = Capture #2 V1
(1)
2 = Capture #1 I1 12 = Capture #2 I1
(1)
3 = Capture #1 V2 13 = Capture #2 V2
(1)
4 = Capture #1 I2 14 = Capture #2 I2
(1)
5 = Capture #1 V3 15 = Capture #2 V3
(1)
6 = Capture #1 I3 16 = Capture #2 I3
(1)
7 = Capture #1 I4 17 = Capture #2 I4
(1)
8 = Channel A
9 = Channel B
5
3 Block number Int 2 Indicates which portion of the capture is returned in this
table. The number of blocks per waveform depends on the
‘Oscillograph type’ (parameter 10 in this table)
For Oscillograph type…
0: block range = 1 to 24 for channels 1 through 7
0: block range = 1 to 144 for channels 8 and 9
1: block range = 1 to 169
1
2: block range = 1 to 85
1
3: block range = 1 to 169
1
4: block range = 1 to 85
1
5: block range = 1 to 169
1
6: block range = 1 to 85
1
6
4 Unique capture identifier Int 2 This value increments for each new capture. This can be
used to determine if multiple reads of this table return data
for the same capture.
Range = 0 to 32767 7
5 Oscillogram data point 1 Int 2 Data point = (Block# - 1)*18 + 0 8
6 Oscillogram data point 2 Int 2 Data point = (Block# - 1)*18 + 1 9
7 Oscillogram data point 3 Int 2 Data point = (Block# - 1)*18 + 2 10
8 Oscillogram data point 4 Int 2 Data point = (Block# - 1)*18 + 3 11
9 Oscillogram data point 5 Int 2 Data point = (Block# - 1)*18 + 4 12