6: D
EVICE
A
DDRESSES
6-32
FC5A M
ICRO
S
MART
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SER
’
S
M
ANUAL
FC9Y-B1268
Expansion I/O Module Devices
Expansion I/O modules are available in digital I/O modules and analog I/O modules.
Among the all-in-one type CPU modules, only the 24-I/O type CPU modules (except 12V DC power type) can connect a
maximum of four expansion I/O modules including analog I/O modules.
All slim type CPU modules can connect a maximum of seven expansion I/O modules including analog I/O modules. When
using the expansion interface module, another eight expansion I/O modules can be added.
I/O Expansion for All-in-One Type CPU Modules
A maximum of four input, output, mixed I/O, or analog I/O modules can be mounted with the 24-I/O type CPU module
(except 12V DC power type), so that the I/O points can be expanded to a maximum of 78 inputs or 74 outputs. The total
of inputs and outputs can be a maximum of 88 points. Input and output numbers are automatically allocated to each dig-
ital I/O module, starting with I30 and Q30, in the order of increasing distance from the CPU module. Expansion I/O mod-
ules cannot be mounted with the 10- and 16-I/O type CPU modules, and the 24-I/O 12V DC power type CPU module.
I/O Device Addresses (All-in-One Type CPU Modules)
Device
FC5A-C10R2
FC5A-C10R2C
FC5A-C10R2D
FC5A-C16R2
FC5A-C16R2C
FC5A-C16R2D
FC5A-C24R2
FC5A-C24R2C
FC5A-C24R2D
Device Adrs
Points
Device Adrs
Points
Device Adrs
Points
Input (I)
I0 - I5
6
I0 - I7
I10
9
I0 - I7
I10 - I15
14
78 total
(except 12V DC
power type)
Expansion Input (I)
—
—
—
—
I30 - I107
64
Output (Q)
Q0 - Q3
4
Q0 - Q6
7
Q0 - Q7
Q10 - Q11
10
74 total
(except 12V DC
power type)
Expansion Output (Q)
—
—
—
—
Q30 - Q107
64
Example:
24-I/O Type
Input
16-pt
Input
Analog
Mixed
4-pt
Input
Input
8-pt
Input
Slot No.:
1
2
3
4
Module
I/O
I/O
Module
4-pt
Output
14-pt Input
10-pt Output
CPU Module
Expansion I/O Modules (4 maximum)
Module
Module
The system setup shown above will have I/O device addresses allocated for each module as follows:
Slot No.
Module
I/O Device Addresses
24-I/O Type CPU Module
I0 to I7, I10 to I15, Q0 to Q7, Q10 and Q11
1
16-pt Input Module
I30 to I37, I40 to I47
2
Analog I/O Module
See page 9-9.
3
4/4-pt Mixed I/O Module
I50 to I53, Q30 to Q33
4
8-pt Input Module
I60 to I67
The I/O numbers of the CPU module start with I0 and Q0. The I/O numbers of the expansion I/O modules start with I30
and Q30. The mixed I/O module has 4 inputs and 4 outputs. When an I/O module is mounted next to a mixed I/O module,
note that the device addresses skip four points as shown above.
Input and output modules may be grouped together for easy identification of I/O numbers. When the I/O modules are
relocated, the I/O numbers are renumbered automatically.
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