Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual - Manual (Page 38)

Publication 1760-UM003A-EN-P - September 2005
5-2 Direct Data Exchange with Pico/GFX (Polled I/O Connection)
Figure 4.6 Input and Output Data Relative to the DeviceNet Master
Input data:
Mode, S1 to S8 Attribute ID: 3
The cyclic data transfer between DeviceNet master and the Pico
DeviceNet Interface slave is provided by the input data byte 0, 1 and
2.
The master reads the following data from bytes 0, 1 and 2:
Inputs
R1 – R16 Outputs
S1 – S8
Pico/GFX
DeviceNet Master
Write: Output
data Read: Input data
Outputs Inputs
IMPORTANT
If Index for transferring valid data is not set, you
cannot read the S1 to S8 bits in RSLogix 5000.
Table 5.10 Byte 0 to 2: Input Data, Mode
Byte Meaning Value
0 Operating mode scan
1 Scan status of the Pico
outputs S1 to S8
2 Not used 00hex