System configuration – Toshiba T2N User Manual
Page 20

1.System Configuration
User’s manual
5
1)Minimum Configuration
2) Maximum Configuration
Number of I/O module
8 I/O modules(BU228N)
8 I/O modules(BU268)
6 I/O modules(BU266)
8 I/O modules(BU268)
6 I/O modules(BU266)
8 I/O modules(BU268)
6 I/O modules(BU266)
•
Up to a maximum of 3 expansion units can be connected.
•
There is no limit on combinations of the types of the rack.
•
When one BU228N and three BU268 are used ,a maximum of 32 I/O modules can be
controlled by the T2N CPU.
Power Supply
CPU
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
Power Supply
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
Power Supply
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
Power Supply
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
I/O
/
Basic unit
Expansion Unit No.1
Expansion Unit No.2
Expansion Unit No.3
Basic unit with 8 I/O modules(BU228N)
Power Supply
I/O
/
I/O
/
I/O
O I/O / I/O
I/O
/
I/O
/
I/O
/
CPU