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3. SPEC~F~CAT~ONS
/MELSE
3.6
1 1 0
Interface with Programmable Controller CPU
The digital
I 1 0
bus may be used for communication between the PC
CPU and the AD51. The following table indicates the function of
each signal. The drive number will vary depending on the AD51
slot location; in the table the AD51 is assumed t o be in slots 011 of
the main base unit.
(1) There are 48 input signals t o the PC CPU (XOO t o X2F) from the
Input
Description
Number
Unused
XOF
Switched onloff by
the
BASIC
program
and the contacts
used in the
sequence program.
(Known as
Unused
X2F
X17
-
X18
-
X I 9
-
X1A
-
X1B
-
X1C
X I D
X1E
-
X l F
AD51.
Address
~eneral-purpose input!
Switched on to
indicate an
AD51
CPU fault
Unused
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