Rockwell-automation 1771-IR INSTL.INSTR RTD INPUT MODULE Uživatelský manuál stáhnout pdf (Strana 7)

RTD Input Module 7

Publication

1771-5.50 – October 1996

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

De o

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

scripti

Word

Real T

ime Sampling -

default = no R

Data

Format

RTD

Type

Units of

Measure

Single channel in ohms

Real time sampling, data format, R

type units of measure, and single

channel in ohms

3.1s

In temperature mode:

0 = Entire module is platinum

1 = Entire module is 10 ohm copper.

Enter exact value in word 2.

In ohms mode:

0 = 30mohm/count resolution

1 = 10mohm/count resolution

If any of these bits are set, the corresponding input

channel will be reported in ohms. If RTDs other than 10

ohm copper or 100 ohm platinum are used you must

report those channels in ohms, not degrees. Data format

on a channel displayed in ohms will default to binary.

Determines what units of measure

the module reports.

Units of measure

Bit 07 Bit 06

Degrees C

Degrees F

Ohms

Not used

Set to match your

processor.

BCD (default)

Reserved

Two’s complement binary

Signed magnitude binary

Bit 10 Bit 09

0.5s

0.4s

0.3s

0.2s

0.1s

1.0s

0.6s

0.7s

0.8s

0.9s

000 01

1.5s

2.0s

2.5s

3.0s

111

No RTS (50ms)

Important: Use decimally addressed bit

locations for PLC-5 processors.

bit 10 is set in word 1, and temperature readings are desired, word 2 must also be used. Enter

the exact resistance of 10 ohm RTD at 25

C in BCD. Range is 9.00 to 1

1.00 ohms. V

alues less

than 9.00 ohms or greater than 1

1.00 ohms will default to 10.00 ohms. Non–BCD values will also

default to 10.00 ohms.

10 ohm resistance @ 25

3, 4, 5, 6, 7, 8

Individual channel bias

- entered in BCD. This value is subtracted from the channel data in the

BTR. The bias value is always a positive number. Bias value range is 0<

bias<9999.

Channel 1-6 bias

9, 10, 11, 12, 13,

14, 15

Channel 1-6 calibration

Individual channel calibration

Not used

Channel failed calibration

FC EE

Not used

S G O

auto-calibration request word

Offset calibration complete

Gain calibration complete

Save complete

EEPROM fault

Faulty calibration (no save)

For detailed configuration

information, see chapter 5 of your

RTD Input Module User Manual

(publication 1771-6.5.76).

Configure the Module

1 2 3 4 5 6 7 8 9 10 11 12

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