Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual - Manual (Page 40)

Publication 1760-UM003A-EN-P - September 2005
5-4 Direct Data Exchange with Pico/GFX (Polled I/O Connection)
Byte 2: not used
Output Data:
Mode, R1 – R16 Attribute ID: 4
The cyclic data transfer between DeviceNet master and the Pico
DeviceNet Interface slave is provided by the output data byte 0, 1 and
2.
The master writes the following data to the bytes 0, 1 and 2:
EXAMPLE
Value 19hex = 0001 1001bin:
S5, S4 and S1 are active
TIP
If control commands and I/O data are used at the
same time:
• The inputs will retain their previous state until
this control command has been executed.
• The input bytes will be updated again after the
data exchange control command has been
terminated.
If the status value of the coupling module is invalid
(= 04hex), then byte 1 (data byte) is transferred with
the value 00hex to the communication bus.
Table 5.13 Byte 0 to 2: Output Data, Mode
Byte Meaning Value
0 Determine mode
1 Setting/resetting of the
Pico/GFX inputs R9 to R16
2 Setting/resetting of the
Pico/GFX inputs R1 to R8