Mitsubishi Electric MELSEC iQ-F Series, Руководство пользователя

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4 SYSTEM CONFIGURATION
4.2 Limitations on the Number of Connected Extension Devices
Number of connected extension modules (including extended
extension cable)
Overall system limitation
There is a limitation on the number of connected extension modules in a whole system as follows.
Connection to the CPU module
There is a limitation on the number of extension modules connected to the CPU module as follows.
The number of extension modules added from the right side of the CPU module to powered input/output module or the
extension power supply module must be as follows.
In addition, there are limitations on the above figures: (1) and (2).
■
Limitation (1)
• Up to 2 modules can be connected.
• The total number of occupied input/output points of extension modules must be 32 points or less.
• When the occupied input/output points are 32 points in the first module, limitation (2) applies for connections of the second
and subsequent modules.
■
Limitation (2)
• Up to 2 modules can be connected.
• When one extension module is connected, it unconditionally consumes 200 mA from the 24 V DC service power.
• When the 24 V DC service power is insufficient because external power supply of the extension module is supplied from
the 24 V DC service power of the CPU module, etc., the extension module cannot be connected.
When connecting FX5-  EX/ES to the above figures, (1) and (2), and the 24 V DC service power supply is
used for the input circuit of FX5-  EX/ES, they do not consume the 24 V DC service power supply.
Type Limitations
Extension module Up to 8 modules can be connected to a system.
(Extension power supply modules and connector conversion module are excluded.)
Extension power supply module Only 1 module can be connected to a system.
Connector conversion module Only 1 module can be connected to a system.
Extended extension cable Only 1 cable can be connected to a system.
Type Limitations
Total No. of input modules, output modules, and intelligent function modules Up to 4 modules can be connected.
I/O
module
I/O
module
Extension
power
supply
module
Connector
conversion
module
I/O
module
Up to 1 module Up to 1 module
CPU module
Up to 8 modules
(excluding extension power supply module and connector conversion module)
CPU module
Intelligent
module
Powered input/
output module,
extension
power supply
module
Input
module,
Output
module
Intelligent
module
Input
module,
Output
module
Intelligent
module
Input
module,
Output
module
Up to 4 module
Up to 2 module
(1)
Up to 2 module
(2)