Rockwell Automation 1755-OF8 GuardPLC Controller Systems - Manual (Page 216)

216 Publication 1753-UM001C-EN-P - March 2010
Chapter 19 Use GuardPLC Controller as an Adapter
3. Type the name for the input assembly in the Name field.
The Assembly ID can be any number from 120…183. All
Assembly IDs under the same EtherNet/IP folder must be
unique.
If the Run/Idle header box is checked, the assembly uses a
Run/Idle header. This four-byte header contains Run/Idle
information about the GuardPLC controller that can be used in
the scanner’s application logic. The GuardPLC controller sends
this Run/Idle header along with the data in the assembly when it
is read.
Usually this box should be unchecked. Normally, the Run/Idle
header will always be used for output assemblies and sometimes
used for input assemblies. However, this may not hold true for
connections to non-Rockwell Automation scanners.
If the Run/Idle header is checked, the input data size specified
by the scanner should be four bytes larger than the actual
GuardPLC controller input assembly size. This is necessary
because the input Run/Idle header, unlike the output one, is not
stored in the GuardPLC assembly, it is automatically added by
the GuardPLC controller when it sends the packet. So, if both
input and output assembly Run/Idle flags are checked, the input
size specified by the scanner should be four bytes larger than
the target assembly size and the output size specified by the
scanner should be four bytes smaller than the target assembly
size.
Configure the Adapter Output Assembly
1. You can use the default output assembly OUT_121 or create a
new output assembly by right-clicking EtherNet/IP in the project
tree and choosing New > Output Assembly.