Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual - Manual (Page 64)

Publication 1760-UM003A-EN-P - September 2005
6-20 Application Examples for Pico
Example:
Data 1 = 2
hex
l ö 3 is active.
Read/write function block
data
General notes
Always note the following when working with function blocks:
• The relevant data is transferred in Intel format. In other words,
the first byte is the low byte (Byte 5) and the last byte (byte 8)
the high byte.
Command rejected –
C0
(1)
0 1 Len 01 01
1 2 Type 90 90
2 3 Index 00 00
3 4 Data 1 (Low Byte) 00 Table 6.37
4 – 6 5 – 7 Data 2 – 4 00 00
(1) Possible causes page 6-34
Table 6.37 Byte 3 (master) or byte 4 (slave): Data 1
Data 1 Bit 7 6 5 4 3 2 1 0
HW1 0/1
HW2 0/1
HW3 0/1
HW4 0/1
HW5 0
HW6 0
HW7 0
HW8 0
Table 6.36 Telegram Structure
Byte Meaning Value (hex), sent by
Master Slave Master Slave
IMPORTANT
Refer to the Pico User Manual, 1760-UM001 for
information on function blocks.