3: I
NSTALLATION
AND
W
IRING
FC5A M
ICRO
S
MART
U
SER
’
S
M
ANUAL
FC9Y-B1268
3-21
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 commu-
nication 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 mod-
ule. Make sure that the total internal current draw does not exceed the current capacity of the CPU module.
Allowable Total Internal Current Draw
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
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.
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
Internal Current Draw by Expansion Modules
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
(Note 3)
FC5A-F2MR2
65 mA maximum
FC5A-F2M2
65 mA maximum
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.
Note 3:
For details about the PID module, see FC5A Series PID Module User's Manual.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
