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2. SYSTEM CONFIGURATION
MELSEC-A
2.3
Applicable CPU Modules
The AD57G can be used with the following CPUs.
(1)
Applicable CPU modules and the number of AD57G modules
The following table shows the PC CPU modules with which the AD57G
can be used and the number of AD57G modules which can be connected
to PC CPU modules.
The CPU modules listed below include those which have the MELSEC-
NET (II) link function.
For
example, in the case of an A1CPU, this means that an A 1CPUP21
or A1CPUR21 can also be linked to an AD57G.
Number of
Applicable CPUs
Connectable
Remarks
AD57Gs
When used with one of the following modules, the
numbers in the middle column must be included
AOJ2H
in the number of modules used.
A1S
0
AOJ2-C214S1 Computer Link/Multidrop Link
A1.A1N
Module (only when the computer link function
A2 (-Sl), A2N (-S2)
2
is used)
A3,A3N
A3H,A3M
0
AD51 (S3)/AD51 H Intelligent Communication
A73
Module
0
AJ71 C21 (81) Terminal Interface Module (only
when the BASIC program mode is used)
0
AJ71 C22(S1) Multidrop Link System Module
0
AJ71 C23 Higher Controller High-Speed Link
A2A (-Sl)
6
Module
A3A
AJ71 C24(S3/S6/S8) Computer Link Module
0
AJ71 Ell Ethernet Interface Module
•
(The AOJ2CPU, A2CCPU, A3VTS, and A81CPU modules are not ap-
plicable.)
•
(2)
Applicable base units
The AD57G can be loaded to any slot in a main base unit or extension
base unit with the following two exceptions:
(a) The power supply capacity may be insufficient to connect the AD57G
to an extension base unit with no built-in power supply (A55B or
A58B).
Wherever possible, avoid connecting an AD57G module to this type
of extension base unit.
If an AD57G module must be connected to an extension base unit
with no built-in power supply, it is important to consider the power
supply capacity of the main base unit, and the voltage drop along the
extension cables when selecting the power supply module and the
extension cables. (The User's Manual of the respective CPU module
gives details.)
2-10
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