Manual

WEB SERVER CPU MODULE USER’S MANUAL FC9Y-B1278 3-15
3: INSTALLATION AND WIRING
Maximum Quantity of Applicable Expansion Modules
This section describes precautions for installing the expansion RS232C communication module in connection with the
internal current draw by other expansion modules.
The all-in-one 24-I/O type CPU module (except 12V DC power type) can mount a maximum of three expansion RS232C
communication modules. The slim type CPU module can mount a maximum of five expansion RS232C communication
modules.
Including expansion RS232C communication modules and other expansion modules, the all-in-one type CPU module can
mount a maximum of four expansion modules, and the slim type CPU module can mount a maximum of seven expansion
modules, unless the total internal current draw by all connected expansion modules exceeds the allowable current draw
of the CPU module. Make sure that the total internal current draw does not exceed the current capacity of the CPU
module.
Allowable Total Internal Current Draw
Note: The all-in-one 24-I/O type CPU module cannot use the expansion RS232C/RS485 communication module in combination with
function modules listed below. When using the expansion RS232C/RS485 communication module and these function modules, use the
slim type CPU module.
Internal Current Draw by Expansion Modules
Note 1: A maximum of two AS-Interface master modules can be mounted even if the total current draw is within the limits.
Only one expansion interface module or expansion interface master module can be mounted to a CPU module, and is not included in
the calculation of the total current draw by expansion modules.
Note 2: Values indicated in square brackets represent FC5A-SIF2 earlier than version 200.
CPU Module
Quantity of Expansion RS232C
Communication Modules
Quantity of Expansion
Modules
Total Internal Current Draw
(5V DC)
All-in-one 24-I/O Type
CPU Module
3 maximum (Note) 4 maximum 260 mA maximum
Slim Type CPU Module 5 maximum 7 maximum 455 mA maximum
Function Module Type No.
Analog I/O Module
FC4A-L03A1, FC4A-L03AP1, FC4A-J2A1, FC4A-J4CN1, FC4A-J8C1, FC4A-J8AT1, FC4A-K1A1,
FC4A-K2C1, FC4A-K4A1
AS-Interface Master Module FC4A-AS62M
Module Type No.
Internal Current Draw
(5V DC)
Module Type No.
Internal Current Draw
(5V DC)
Input Module
FC4A-N08B1 25 mA maximum
Mixed I/O
Module
FC4A-M08BR1 25 mA maximum
FC4A-N16B1 40 mA maximum FC4A-M24BR2 65 mA maximum
FC4A-N16B3 35 mA maximum
Analog I/O
Module
FC4A-L03A1 50 mA maximum
FC4A-N32B3 65 mA maximum FC4A-L03AP1 50 mA maximum
FC4A-N08A11 60 mA maximum
Analog Input
Module
FC4A-J2A1 50 mA maximum
Relay Output
Module
FC4A-R081 30 mA maximum FC4A-J4CN1 50 mA maximum
FC4A-R161 45 mA maximum FC4A-J8C1 40 mA maximum
Transistor
Output
Module
FC4A-T08K1 10 mA maximum FC4A-J8AT1 45 mA maximum
FC4A-T08S1 10 mA maximum
Analog Output
Module
FC4A-K1A1 50 mA maximum
FC4A-T16K3 10 mA maximum FC4A-K2C1 60 mA maximum
FC4A-T16S3 10 mA maximum FC4A-K4A1 65 mA maximum
FC4A-T32K3 20 mA maximum
FC4A-T32S3 20 mA maximum
AS-Interface Master Module (Note 1) FC4A-AS62M 80 mA maximum
Expansion RS232C Communication Module FC5A-SIF2
40 mA [85 mA]
maximum (Note 2)
Expansion RS485 Communication Module FC5A-SIF4 40 mA maximum
PID Module
FC5A-F2MR2 65 mA maximum
FC5A-F2M2 65 mA maximum