Knowledge Base / Rockwell In-chassis / ControlLogix / MVI56 Series / MVI56-BAS

MVI56-BAS does not list edits, Why?

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I have made edits to my BASIC program on an MVI56-BAS module. It appears that the edits are being processed, however, when I try to get a listing of the program, the latest edits do not appear in the program. Why?

When the MVI56-BAS module is placed in "PROG2" mode, the BAS module executes from EPROM. This affects how the program in XRAM is listed. By typing a "PROG0" command, the BAS module is taken out of EPROM mode. This will allow any program in XRAM to be completely and correctly listed.