Rockwell Automation 1771-OFE/B Analog Output Module User Manual User Manual

Page 41

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4-5

Publication 1771Ć6.5.30 - November 1998

Table 4.B

PLCĆ2 Family Data Table Word

ALLEN-BRADLEY

Programmable Controller

DATA TABLE WORD ASSIGNMENTS (64-WORD)

WORD ADDR

DESCRIPTION

WORD ADDR

DESCRIPTION

0

1

2

3

4

5

6
7

0

1

2

3

4

5

6
7

0

1

2

3

4

5

6
7
0

1

2

3

4

5

6
7

0

1

2

3

4

5

6
7

0

1

2

3

4

5

6
7

0

1

2

3

4

5

6
7
0

1

2

3

4

5

6
7

PAGE

ADDRESS

OF

TO

PROJECT NAME

DESIGNER

PROCESSOR

DATA TABLE SIZE

OFE PROGRAM

PLC-2 FAMILY & PLC-3

CH 1 DATA

CH 2 DATA

CH 3 DATA

CH 4 DATA

0100

0

4095

0

4095

20

275

100

500

2

2

Comments:

Block length for block transfer write is 00. Unscaled channels have a minimum scaling
value of 0 and a
maximum scaling value of 4095. If channels 1 and 2 were configured for + 10V operation,
then the minimum scaling value would be -4095 and the maximum scaling value would
be +4095. Since channel 3 has a negative minimum scaling value, you must set the polar-
ity bit (bit 10) associated with channel 3’s minimum scaling word in the configuration
word (word 5 of the write block).

12891

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