Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual - Manual (Page 58)

Publication 1760-UM003A-EN-P - September 2005
6-14 Application Examples for Pico
Local P buttons: P1 – P4
The local P buttons are the display cursor buttons of the Pico basic
unit. You can scan the buttons in both RUN and STOP mode.
Only one byte has to be transferred for the P buttons.
Table 6.23 Byte 3 (master) or byte 4 (slave): Data 1
Data 1 Bit 7 6 5 4 3 2 1 0
O1 0/1
O2 0/1
O3 0/1
O4 0/1
... ... ... ... ...
IMPORTANT
Ensure that the P buttons are also activated via the
System menu (in the basic unit).
Table 6.24 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 6-348
0 1 Len 01 01
1 2 Type 8A 8A
2 3 Index 00 00
3 4 Data 1 (Low Byte) 00 Table 6.25
4 – 6 5 – 7 Data 2 – 4 00 00