Mitsubishi A2CCPU User Manual

APPENDICES /MELSEC-A
Appendix 4 Instructions for Use with Peripheral Devices
This section gives the instructions for use of the AGGPP, AGPHP,
AGHGP, A7PU, and AGWU modules with the A2C.
4.1 A6GW
The system disk for the A2C is SW4GP-GPPA.
If SW3GP-GPPA or other system disks of former versions is used,
follow the instructions described below.
CPU type
On the AGGPP booted with the SWSGP-GPPA disk, set the CPU
type as "A2".
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.
Number of
I/O points
The A2C has 512 input and output points from
X/YO to X/Y1 FF.
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 interrupt counters cannot execute count processing with
main routine programs and subroutine programs.
Unusable devices
Since the A2C does not execute interrupt programs,
I (inter-
rupt pointer) is not usable.
Unusable instructions
The following instructions are not usable on the A2C.
(a) PR (ASCII print instruction)
(b) EVDI (Interrupt program enabWdisable)
(c) IRET (Interrupt program return)
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.)
Writing to EP-ROM impossible
It is impossible to prepare the ROM for ROM operation in the
ROM mode.
It is possible to prepare two ROMs (even numbered addresses
and odd numbered addresses) for storage.
APP-12
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Mitsubishi A2CCPU Specifications

General

Brand	Mitsubishi
Model	A2CCPU
Category	Controller
Language	English