IDEC FC4A-C10R2 User Manual page 183

Fc4a series microsmart micro programmable logic controller

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I/O Expansion for Slim Type CPU Modules

All slim type CPU modules can connect a maximum of seven expansion I/O modules including analog I/O modules.

The expandable I/O points and the maximum total I/O points vary with the type of CPU module as listed below.

Allocation Numbers (Slim Type CPU Modules)

Expansion Input (I)

Expansion Output (Q)

Maximum Total

16-pt Output

The system setup shown above will have I/O operand numbers allocated for each module as follows:

40-I/O Type CPU Module

32-pt Output Module

16-pt Input Module

16/8-pt Mixed I/O Module

8-pt Input Module

Analog I/O Module

4/4-pt Mixed I/O Module

32-pt Input Module

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. When an I/O module is mounted next to a 4/4-point mixed I/O module, note that the allocation numbers 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 relo-

cated, the I/O numbers are renumbered automatically.

Allocation No.

Expansion I/O Modules (7 maximum)

Allocation No.

I0 to I7, I10 to I17, I20 to I27, Q0 to Q7, Q10 to Q27

Q30 to Q37, Q40 to Q47, Q50 to Q57, Q60 to Q67

I30 to I37, I40 to I47

I50 to I57, I60 to I67, Q70 to Q77

See page 24-8.

I80 to I83, Q80 to Q83

I90 to I97, I100 to I107, I110 to I117, I120 to I127

Allocation No.

I/O Operand Numbers

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