Expansion Options
The difference between a base unit, extension unit and extension block is described as follows:
쎲 A base unit is made up of 4 components i.e. power supply (for base units with AC power
supply only), inputs, outputs and CPU.
쎲 An extension unit is made up of 3 components i.e. power supply, inputs and outputs.
쎲 An extension block is made up of 1or 2 components i.e. inputs and/or outputs.
It can be seen that the extension block does not have a power supply. It therefore obtains its
power requirement from either the base unit or extension unit.
Hence it is necessary to determine how many of these unpowered units can be connected
before the "On Board" power supply capacity is exceeded.
The Hardware System Configuration
Training Manual GX IEC Developer 2 - 35
PLC
Number of modules on the
left side of base unit
Number of boards in expan
-
sion board port of base unit
Number of modules on the
right side of base unit
FX
1S
The modules FX0N-485ADP and
FX
0N-232ADP can be mounted
in combination with a communi
-
cation adapter FX
1N-CNV-BD.
1
(product code FX
첸첸-첸첸첸-BD)
—
FX
1N
Up to 2 special function mod
-
ules of the FX
2N series.
FX
2N
Up to 8 special function mod
-
ules of the FX
2N series.
FX2NC
The modules FX0N-485ADP and
FX
0N-232ADP can be mounted
on the left side directly. An
adapter is not required.
—
Up to 4 special function mod
-
ules of the FX
2N series.
FX
3G
Up to 4 special adapters of the
FX
3U series can be mounted on
the left side of the base unit in
combination with an adapter
board FX
3G-CNV-BD.
Up to 2
(dependent on the type
of base unit)
(product code FX
3G-첸첸첸-BD)
Up to 8 special function mod
-
ules of the FX
2N or FX3U series.FX3U
Up to 10 special adapters of the
FX
3U series can be mounted on
the left side of the base unit
directly or in combination with
an interface/communication
adapter FX
3U-첸첸첸-BD.
1
(product code FX
3U-첸첸첸-BD)
FX
3UC
Up to 6 special adapters of the
FX
3U series can be directly
mounted on the left side of the
base unit.
—
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