Placing the modules with 1ćslot addressing – Rockwell Automation 1785-LTx,D17856.2.1 Classic PLC-5 Programmable Controllers Users Manual User Manual

Page 56

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Assigning Addressing Modes,

Racks, and Groups

Chapter 4

4-14

Placing the Modules with 1ĆSlot Addressing

Figure 4.6 shows a possible module placement to configure
complementary I/O using 1-slot addressing.

Figure 4.6

Complementary I/O Configurations with 1ĆSlot Addressing

I

I

O

I

O

O

O

Double–slot

BT

E

M

P
T
Y

0

2

1

3

4

5

6

7

1

2

BT

O

I

I

I

O

O

E

M

P
T
Y

O

O

I

I

O

O

I

I, O,
BT

I

I

I

O

O

O

0

1

2

3

4

5

6

7

0

2

1

3

4

5

6

7

0

1

2

3

4

5

6

7

I

O

I

O

I

O

I

O

I

O

I

O

I

O

I

O

I

O

I

O

I

O

I

O

I

O

I

O

I

O

I

O

13080

1

3

3

Primary 16ĆSlot

Chassis

I/O Group

Number

Complementary

16ĆSlot Chassis

Complementary

16ĆSlot Chassis

I/O Group

Number

Primary 16ĆSlot

Chassis

Example A

Example B

I = Input Module (8 or 16Ćpoint)

O = Output Module (8 or 16Ćpoint)

BT = Block Transfer Module

1 Output modules use the same output image table bits

2 Can be input or output module (8 or 16Ćpoint) singleĆslot block transfer module

3 Must be empty if corresponding primary slot is block transfer module

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