Rockwell Automation 1747-PT1, D1747NP002 Hand-Held Terminal - Manual (Page 183)

11 Chapter
11–1
Processor Modes
This chapter describes the different operating modes a processor can be
placed in while using the HHT. Available processor modes include:
•
Run
•
Program
•
Test
The Test mode has the following options:
– continuous scan
– single scan
Run Mode
While in the Run mode, the processor scans or executes the ladder program
and monitors input devices. It also energizes output devices and acts on
enabled I/O forces.
The Run mode allows you to:
•
Monitor the ladder program, rung state, and data as it is being executed.
•
Use the search function.
•
Force I/O.
•
Upload a processor program to HHT RAM.
•
Monitor and edit data.
Program Mode
The Program mode facilitates the transfer of programs through the download
and upload function. In this mode the processor does not scan or execute the
ladder program and all outputs are de–energized regardless of their current
states.
Once a program is downloaded, you can:
•
Monitor the ladder program in the processor without rung state indication.
•
Set up I/O forces without enables being executed.
•
Use the search function.
•
Monitor last run mode state of data files.
•
Edit data files.
•
Transfer programs to and from a memory module.
Processor Modes