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1794-ie8 – 8 input analog module, 1794-ie8 memory map – ProSoft Technology 3170-PDP User Manual

Page 28

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3170-PDP ♦ FLEX Platform

How Communication Takes Place and I/O Image Table Mapping

FLEX I/O™ PROFIBUS Adapter

Page 28 of 152

ProSoft Technology, Inc.

August 23, 2007

3.2.7 1794-IE8 – 8 Input Analog Module

Module

I/O Image

Input Data Channel 0

Input Data Channel 1

Input Data Channel 2

Input Data Channel 3

Input Data Channel 4

Input Data Channel 5

Input Data Channel 6

Input Data Channel 7

Underrange

Configure select

Not used

Not used

Not used

Not used

Not used

Input Size

Output

0 or 1 Word

1 to 9 Words

PU

1794-IE8 Memory Map

Decimal
Bit

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Size

Oct.

Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00

Read

Words

S

Analog Value Channel 0

Read Word 1

Read Word
1

S

Analog Value Channel 1

Read Word 2

Read Word
2

S

Analog Value Channel 2

Read Word 3

Read Word
3

S

Analog Value Channel 3

Read Word 4

Read Word
4

S

Analog Value Channel 4

Read Word 5

Read Word
5

S

Analog Value Channel 5

Read Word 6

Read Word
6

S

Analog Value Channel 6

Read Word 7

Read Word
7

S

Analog Value Channel 7

Read Word 8

Read Word
8

PU Not used – set to zero

U7 U6 U5 U4 U3 U2

U1 U0 Read Word

9

C7 C6 C5 C4 C3 C2 C1 C0 F7 F6 F5 F4 F3 F2 F1 F0

Write

Word

1

Not used – set to 0

Write Word
2 thru 6

Where: PU = Power up bit – included in series B modules only.
U = Underrange bits for 4 to 20mA inputs
C = Configure select bit
F = Full range bit
S = sign bit (in 2's complement)