Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual User Manual
Page 60
Publication 1760-UM003A-EN-P - September 2005
6-16 Application Examples for Pico
Example:
Data 1 = 52
hex
l Q2, Q5 and Q7 are active.
Inputs/outputs of PicoLink: R1 – R16/S1 – S8
This service allows you to read the local R and S data and the data of
the NET stations (1 – 8) transferred via PicoLink, again from the
relevant Pico image.
Q2
0/1
..
..
Q8
0/1
Table 6.28 Telegram Structure
Byte
Meaning
Value (hex), sent by
Master
Slave
Master
Slave
Attribute ID: Read
88
–
0
Response:
Read successful
–
C2
Command
rejected
–
C0
(1)
(1) Possible causes page 6-34
0
1
Len
01
01
1
2
Type
for R data
88
88
for S data
89
89
2
3
Index
00
00
3
4
Data 1 (Low Byte)
00
Table 6.29
4
5
Data 2 (Low Byte)
00
Table 6.29
5 – 6
6 – 7
Data 3 – 4
00
00
Table 6.29 Byte 3 to 4 (master) or Byte 4 to 5 (slave): Data 1 to 2
Data 1
Bit
7
6
5
4
3
2
1
0
RW
SW
R1
S1
0/1
R2
S2
0/1
...
...
...
Table 6.27 Byte 4: Data 1