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I/O NUMBER ASSIGNMENT

4.3 I/O Assignment by GX Developer

4.3.2 Concept of I/O assignment using GX Developer

4 - 6

Overview

Performance

Specification

Sequence Program

Configuration and

Execution Conditions

I/O Nunber Assignment

Memories and Files

Handled by CPU Module

Functions

Communication with

Intelligent Function

Module

Parameters

Set the mounted module model name within 16 characters.

The specified model name is not used for the CPU module. (It is used as a user's

memo.)

(d) Points

To change the number of occupied I/O points of each slot, select it from the

followings:

• 0(0 point) • 16(16 points) • 32(32 points)

• 48(48 points) • 64(64 points) • 128(128 points)

• 256(256 points) • 512(512 points) • 1024(1024 points)

If the number of occupied I/O points is not designated for a slot, the one of the

actually mounted module is used.

(e) Start XY

When the I/O number of each slot is changed, you should designate the head I/O

number according to the change.

If Start XY is not designated for a slot, the I/O number continuing from the last

number of the currently designated slot is assigned.

(2) Precautions for I/O assignment

(a) Slot status after I/O assignment

When I/O assignment setting has been made to a slot, that setting has

precedence over the mounted module.

1) When the preset number of points is less than the number of mounted

intelligent function module points

"MODULE LAYOUT ERROR" occurs.

2) Mounted module and I/O assigned module type

The mounted module type and the set type in the I/O assignment setting must

be the same.

If not, normal operation will not be performed.

For the intelligent function module, make sure that the numbers of I/O points

are the same.

Table4.1 describes the operations performed when the mounted module type

differs from the one in the I/O assignment setting.

Table4.1 List of operations performed when mounted module differs from I/O assignment

Mounted module

I/O assignment

setting

Result

Empty slot Intelli. Empty slot

All modules Empty Empty slot

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 233 234

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