slc5/05

[trieulh 0]

Hi anybody i am uploaded a existing program SLC5/05 , and insert 1 rung , re-download but it isn't run this rung (only this rung), every thing ok, no error.... - RSlogix500 ver 5.2.00 rslinx pro 2.4 - Win XP SP2 what can i do? step? Thanks

[Ken Moore 23]

First thought is that the PLC has an EEPROM installed and is reloading the program from there. You say isn't running this rung, is the rung there but not executing? Did you place the new rung in a new subroutine, and forget to call it? If you do an online edit an isert the rung what happens?

[trieulh 0]

No, in existing rung I tested: use a contact I:2/1 connect to coil B3:0/0 , when I:2/1 =1 but B3:0/0=0

[Ken Moore 23]

Search for B3:0/0, something else may be turning it off. Your screen does not update as fast as the plc, so you may want to do a data monitor of B3:0/0 as well.

[Mickey 71]

If you put this new rung in any ladder file other then Lad2 you will need to have JSR jump to subroutine for this new ladder file.