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APPENDICES
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4.3
A6HGP
The system disk of current version is used for use with the A2C.
Follow the instructions described below.
(1)
CPU type
On the A6HGP booted with the SW3-HGPA disk, set the CPU type as
"A2·.
(2) Program capacity
The A2C has 8K steps of capacity for sequence programs and
microcomputer programs.
By parameter setting, program capacity less than 8K steps should be
set.
(3)
Number of I/O points
The A2C has 512 input and output points from
X/YO
to XlY1 FF.
I
(4)
Interrupt programs and interrupt counters are unusable.
On the A2C, interrupt programs (I to IRET) cannot be executed.
Do not set interrupt counters using parameters. Counters set for inter-
t
rupt counters cannot execute count processing with main routine
programs and subroutine programs.
(5)
Unusable devices
Since the A2C does not execute interrupt programs, I (interrupt pointer)
is not usable.
(6)
Unusable instructions
The following instructions are not usable on the A2C.
(a) PR (ASCII print instruction)
(b) EI/DI (Interrupt program allow/disallow)
(c) IRET (Interrupt program return)
(7)
Remote terminal setting
Remote terminal setting of the A2C is executed with the initial program
of the sequence program. (See Section 4.2.9 for details of the initial
program.)
APP-24

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