5.
MEMORY
ICs, BATTERY, CABLES AND DIN ADAPTER
-------------------
MELSEC·A
5.1.3 Installation
(1) How to hold
Hold
the
memory IC as shown in Fig. 5.1
so
that
fingers may not
touch
the memory
leads. If touched,
the
memory may be
destroyed
by
static
electricity
or leads
may be bent and cause incomplete con-
tact.
(2) Installing direction
Install the memory IC into the direction
marked on
the
memory socket matching
the
notch position. If installed in wrong
direction, the memory will be destroyed
when the A2C is turned on.
Fig. 5.1
How
to
Hold
EP-ROM
Installing
direction
'-'"
D
0.0S£
""(0
Fig.
5.2
Installing
Direction
(3) Procedure
(a) Set memory type with
the
RAM/ROM setting pin.
1) Sequence programs stored in
the
user memory area in
the
A2C
is
used:
ON
2) EP-ROM is
installed:
OFF
(b) Install
the
EP-ROM.
Match the notch mark on the ROM socket with the
notch
of the
EP-ROM.
After installing the EP-ROM, cover it with
the
masking
tape
supplied
with the ROM.
5-2
•
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