Rockwell Automation 1785-Lxxx Enhanced and Ethernet PLC-5 Programmable Controllers - Manual (Page 223)

Publication 1785-UM012D-EN-P - July 2005
Programming Considerations 13-5
Using Protected Controllers
If you are using a PLC-5 protected controller, you must configure forcing
online since, by their design, protected controllers cannot download forcing
operations. This protects controller operation from possible force operations
programmed in offline mode. For more information about protected
controllers, see the PLC-5 Protected Controller Supplement, publication
1785-6.5.13.
Using Selectable Timed Interrupts (STIs) and Controller Input
Interrupts (PIIs)
We recommend that you do not use forcible block-transfer data table files
within STIs or PIIS due to the unique data flow of forcible block-transfer data.
Block-transfer data that is written out or read in is never valid within the
interrupt program file execution itself. Any necessary additional program scan
time may defeat the purpose for programming the STI or PII.
Setting Up and Using
Extended Forcing Use your programming software to set up and use the extended forcing
feature. The following table lists the software requirements for the extended
forcing feature.
To set up and use the extended forcing feature, you need to:
1. Select the group of data you want to force.
2. Use the programming software to enter or edit the data you want to
force in the extended force configuration table.
3. Use the programming software to enter force values for the specified
data table files.
4. Enable or disable the forces.
With the Programming Software
Package You Need this Software Release
RSLogix5 2.0 or later
6200 5.3 or later
A.I. 5 8.03 or later
WinLogic 5 3.22 or later