Chapter 5: Programming  5-19 
Programming Tips 
The following are some tips to help when programming the 7893. 
  Turn the host terminal Off or disconnect all interface cables to the 7893 before entering the 
program. Some host terminals can corrupt the program if they are running and are 
connected to the 7893 while entering the program. 
  To exit a Parameter Program without entering all the parameters, scan the Abort tag. Only 
the parameter sequence which was aborted is not saved. Any prior sequence that 
successfully ended with the scanner saying "Program Mode" is saved. To save the changed 
parameters, scan the Save and Reset tag. 
  To exit programming mode without saving any parameter changes, scan the Abort tag 
while in Program Mode. The 7893 goes through initial startup and operates using the old 
program. 
  If unknown how the 7893 is programmed, set all parameters to default values, then enter 
any required changes. Do this by scanning the Default tag first after applying power to the 
7893. Next, scan the Program Mode tag to enter the Program Mode and enter the 
programming changes. 
Note:  Some parameters do not have default values and are not changed when the Default tag 
is scanned.