2. DISPLAYS AND OPERATIONS
2.1 Front Panel Description
① Upper display window, displays PV, parameter code, etc.
② Lower display window, displays SV, parameter value, or
alarm
③ Setup key, for accessing parameter table and conforming
parameter modification.
④ Data shift key, and auto tuning.
⑤ Data decrease key, and also run/pause switch
⑥ Data increase key, and also stop key
⑦ LED indicator. MAN and PRG indicators is non-applicable
for AI-518. PRO is on indicating the program of AI-518P is
running. MIO, OP1, OP2, AL1, AL2, AU1 and AU2 indicate
I/O operation of the corresponding module. For example,
COMM indicator is flashing meaning that the instrument is
communicating with computer.