Brookfield YR-1 Rheometer Manual do Utilizador descarregar pdf (Página 52)

Brookeld Engineering Labs., Inc. Page 52 Manual No. M02-215-B0412

APPENDIX E - Communications

Communications

1. Serial (RS-232) Communications Parameters

Baud Rate 9600

Data Bits 8

Stop Bits 1

Parity None

Handshake None

2. RS-232 Output During The Test

All output that occurs immediately before and after the test is described in Section III.4. That

pre- and post- test output is sent out both the serial (RS-232) and parallel ports. When using

the Brookeld Computer Cable (Brookeld part # DVP-80), the YR-1 will output a data string

during the actual yield test run. This data is ONLY sent out to the RS-232 port for use with the

EZ-Yield

software.

The following output is sent to the serial (RS-232) port at the end of every Base Increment period:

xxxxxx:yy.yy:ttt.t:zz.zz

where the delimiter between all elds is a colon (:) character and

xxxxxx = The Base Increment count in hexadecimal format, padded with leading zeroes.

This is the time, in milliseconds that each reading was taken in the instrument.

yy.yy = % Torque value. % Torque is output with a resolution of 0.01% and a maximum

of 99.99%.

ttt.t = Temperature in °C.

zz.zz = Delta Torque (%). This is the actual change in percent torque, measured from the

previous reading, calculated at the end of each Base Increment period.

No Connection

Transmit Data (TxD)

Receive Data (RxD)

No Connection

Serial Ground

Analog Ground

Analog % Torque

(Note 1)

Analog Temperature

(Note 2)

Notes:

1. This is a 0-1 volt d.c. output where 0 volts corresponds to 0% torque

and 1 volt corresponds to 100 % torque with a resolution of 1 millivolt

(0.1%).

2. This is a 0-4 volt d.c. output where 0 volts corresponds to -100 ºC and

4 volts corresponds to +300 ºC with a resolution of 1 millivolt (0.1 º C).

Figure E-1

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 63 64

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