Filter
Top Products
6 Examination of System Configuration
6.4 Number of Connected Extension Devices (Including Extension Cable)
75
FX3G Series Programmable Controllers
User's Manual - Hardware Edition
1
Introduction
2
Features and
Part Names
3
Product
Introduction
4
Specifications
5
Version and
Peripheral
Devices
6
System
Configuration
7
Input/Output
Nos., Unit Nos.
8
Installation
9
Preparation and
Power Supply
Wiring
10
Input Wiring
6.4 Number of Connected Extension Devices (Including Extension Cable)
6.4.1 Number of connectable expansion boards and special adapters
The number of connectable expansion boards and special adapters varies depending on the number of points
in the main unit. The connector conversion adapter (FX
3G
-CNV-ADP) is required to connect the special adapter.
→ For assignment of communication channels, refer to Section 7.3.
• In the case of Main units (40/60 point type)
*1. Only one FX
3G
-4EX-BD, FX
3G
-2EYT-BD and FX
3G
-8AV-BD can be connected to a single PLC main unit.
*2. Only one FX3U-ENET-ADP can be connected to a single PLC main unit.
• In the case of Main units (14/24 point type)
6.4.2 Input/output powered extension units
Up to 2 input/output powered extension units can be connected in one system.
6.4.3 Extension Power Supply Unit
Only one extension power supply unit (FX3U-1PSU-5V) unit can be connected to a single PLC main unit.
Available when the main unit is the AC power supply type.
6.4.4 Special function blocks
Up to 8 special function units/blocks can be connected in one system.
When connecting the following products, take into consideration the combination, number of units/blocks and
connecting order.
6.4.5 Extension cable
One extension cable can be used in a system.
The FX
2N-CNV-BC is required when the extension block is connected.
•FX
0N-65EC(650mm(25.59"))
•FX
0N-30EC(300mm(11.81"))
Use of expansion board
Number of connectable
expansion boards
Number of connectable special adapters of each type
Communication
special adapters
Analog
special adapters
When expansion board is not used 0
2 units
*2
2 units
When expansion board is used
1 unit
Communication expansion board
1 unit 2 units
FX
3G-4EX-BD, FX3G-2EYT-BD,
FX3G-8AV-BD
Analog expansion board
2 units
*2
1 unit
2 units
*1
Cannot be connected. Cannot be connected.
Use of expansion board
Number of connectable
expansion boards
Number of connectable special adapters of each type
Communication
special adapters
Analog special adapters
When expansion board is not used 0 1 unit 1 unit
When expansion board is used 1 unit Cannot be connected. Cannot be connected.
Type Limitations
FX3U-16CCL
• Only one FX3U-16CCL-M unit can be connected to a single PLC main unit.
• This master cannot be used together with FX2N-16CCL-M.
FX2N-16CCL-M
• When some units are used, a remote I/O station cannot be connected to the second and following master stations.
• This master cannot be used together with FX3U-16CCL-M.
FX3U-64CCL • Only one FX3U-64CCL unit can be connected to a single PLC main unit.
FX2N-2AD
FX2N-2DA
When any of these products is connected to a FX2N Series input/output powered extension unit, the current
consumption is restricted.
The total current consumption of FX2N-2AD and FX2N-2DA must be the following value or less.
-FX2N-32E : 190mA or less
-FX2N-48E : 300mA or less