Rockwell Automation DeviceLogix System User Manual - Manual (Page 185)

Publication RA-UM003B-EN-P - February 2010 185
RSNetWorx for DeviceNet Software and the DeviceLogix Editors Appendix B
Understand Produced Network I/O
(also known as Network Outputs)
Under normal conditions, an I/O device produces the state of its
inputs and the status of any fault information on the device. However
with local logic running on a device, a master controller sometimes
needs to know the results of some intermediate state or value of logic.
Using a special I/O assembly containing network outputs, it is
possible for the device to report the state of any portion of the logic.
Each network output has a space reserved for it in the module’s
produced I/O assembly. When you connect this network output to
something in the logic, those results are reported in the produced
data.
In the following example, you can see when hardware inputs 0 and 1
are on at the same time. This is reported in Network Output 0.
Network Output 1 reports when Faults have occurred. Both of these
pieces of information are reported in the produced I/O data shown
below the example.
Produced I/O Data
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Byte 0 In 7 In 6 In 5 In 4 In 3 In 2 In 1 In 0
Byte 1 OPWR Logic Ena
Byte 2 Out 7 Out 6 Out 5 Out 4 Out 3 Out 2 Out 1 Out 0
Byte 3 Network
Output 7 Network
Output 6 Network
Output 5 Network
Output 4 Network
Output 3 Network
Output 2 Network
Output 1 Network
Output 0
All data in the assembly including Network Outputs are capable of causing a Change of State production.
OPWR = Output Power; Logic Enabled = DeviceLogix Enabled