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Rockwell Automation 1772-LP3 PLC - 2/30 Programmable Controller Programming and Operations Manual User Manual

Page 35

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Data Table

Chapter 3

3Ć8

Figure 3.3

PLCĆ2/30 Memory Organization (Default Configuration)

Processor Work Area

No. 1

Processor Work Area

No. 2

Timer/Counter

Accumulated Values (ACC)

Internal Storage

Timer/Counter

Preset Values (PR)

Internal Storage

1

Bits in this word are used by the processor for

battery low condition, message generation,

and data highway. Do not put output modules

in rack 2, I/O group 7.

2

These words are used to indicate remote rack

fault status in a remote I/O system. Do not

put input modules in rack 2, I/O groups 5 or 6.

Default

Configured

Data Table

(128 Words)

Octal

Word Address

Decimal

Words

Per Area

Total

Decimal

Words

8

24

64

72

88

128

Up to

16,256

8

16

40

8

16

40

007
010

026

027
030

077
100

107
110

127
130

177

17777

000

User Program

Input

Image Table

Output

Image Table

Bit

Address

17
00

17

00

17
00

17
00

17
00

17

00

125

126

2

1