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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£
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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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