Rockwell-automation 1771-IFE/C INSTL.INSTRUCTIONS ANALOG INPU Manual de usuario descargar pdf (Pagina 10)

Analog Input Module10

Publication

17715.45 - July 1997

Because of the many analog devices available and the wide variety

of possible applications, you must configure the module to conform

to the analog device and specific application that you have chosen.

Use the configuration information below to configure your module

to your specifications.

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

Description

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

Description

Word 1 8 7 6 5 4 3 2 1

Range Selection  Channels 1 - 8

2 16 15 14 13 12 11 10 9

Range Selection  Channels 9 - 16

Input range selections

allow the

Bit 01 Bit 00

oltage or Current Input

Input range selections

allow the

user to configure the inputs for any of

7i t lt t T

0 0

1 to 5V dc, 4 to 20mA (default)

user

configure

the

inputs

for

any

7 input voltage or current ranges. T

bits are required for each channel.

0 1

0 to 5V dc, 0 to 20mA

bits

are

required

for

each

channel

Bits 00 and 01 for channel 1, bits 02

and 03 for channel 2, etc.

1 0

5 to +5V dc, 20 to +20mA

and 03

or channel 2, etc.

1 1

10 to +10V dc, 0 to 10V dc

3 Real T

ime Sampling

Data

Format

Input

Type

Digital Filter

Real time sampling, data format, input

type and digital filter

Digital filter

reduces ef

fect of noise on input. (Default is no

filter.)

Input type

, set bit for dif

ferential mode on all channels.

Reset (0)

= singleended inputs (default)

Set (1)

= dif

ferential inputs

Real time sampling

- Default is no R

TS.

Data format

- set to match

your processor

BCD (default)

Reserved

Two's

complement binary

Signed magnitude binary

Bit 10

(12)

Bit 09

(11)

0 0

0 1

1 0

1 1

Minimum sign bits, when set, designate negative minimum scaling values for the

corresponding input channels. Bit 00 corresponds to channel 1, bit 01 corresponds to

channel 2, etc.

Sign Bits, minimum scaling values

Maximum sign bits, when set, designate maximum scaling values that are negative.

Maximum scaling value must be greater than minimum on any particular channel. Bit 00

corresponds to channel 1, bit 01 corresponds to channel 2, etc.

Sign Bits, maximum scaling values

6, 8, 10, 12, 14, 16,

18, 20, 22, 24, 26,

28, 30, 32, 34, 36

Minimum scaling

values for each channel. Enter in BCD format.

Channel 1  minimum scaling

7, 9, 1

1, 13, 15, 17,

19, 21, 23, 25, 27,

29, 31, 33, 35, 37

Maximum scaling

values for each channel. Enter in BCD format.

Channel 1  maximum scaling

Offset calibration - Each bit represents a channel (bit 00 to channel 1, bit 01 to channel

2, etc.). When the bit is set, and a BTW has been sent, the module will read the channels

and adjust the offset to analog ground potential. In differential mode, bits 08 thru 15 (10

thru 17 in octal) are ignored. In current mode, apply 0mA.

Offset

Calibration

Gain calibration - Each bit represents a channel (bit 00 to channel 1, bit 01 to channel 2,

etc). When the bit is set, and a BTW has been sent, the module will read the channels and

adjust the gain correction values. If used on +, 0 to 5, or 1 to 5V ranges, a value of 5V is

expected. If used on +10V range, 10V is expected. In differential mode, bits 08 thru 15 (10

thru 17 in octal) are ignored. In current mode, apply 20mA.

Gain

Calibration

For

detailed configuration

information, see chapter 2 of

your

Analog Input User Manual

(publication 17716.5.1

15).

Configure the Module

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 16

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