ADC VelociGraph VG03, Руководство по эксплуатации

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IV. Communications
The VelociGraph VG03 includes an RS485 serial port for broadcasting results real-time
during operation. The results are broadcast as an ASCII text string at the end of a pulse
sequence.
Depending on the model and configuration of the VG03, the following information will be
broadcast:

INBOUND VELOCITY (user units): Receiver A->C

OUTBOUND VELOCITY (user units): Receiver C->A

REBOUND TIME (ms): Time between first and second C receiver pulse
MODEL VG03 ONLY

INBOUND ANGLE (degrees): Angle A->B->C

OUTBOUND ANGLE (degrees): Angle C->B->A
OUTPUT FORMAT FOR VG03:
<INBOUND VEL><SP><OUTBOUND VEL><SP><REBOUND TIME><CR><LF>
SAMPLE OUTPUT:
160.0000 83.1344 5.2387
OUTPUT FORMAT FOR VG03
If a pulse sequence is not complete, or has any missing pulses, an error code is generated and
embedded in the result string. Any calculations for which there are enough pulses available
are completed. For any calculations where there are not enough pulses, the result is replaced
by the receiver (A, and/or C) and the direction number (1 for INBOUND or 2 for
OUTBOUND) that is missing.
This is useful for diagnostic purposes, as it allows for the operator to pinpoint any trouble
sensors.
EXAMPLE OUTPUT WITH ERRORS:
160.0000 C2

Missed the C sensor on the rebound.
B1C1 B2C2

Missed the B and C sensors in both directions.
COMMUNICATION SETTINGS:
Communication settings for the VG03 are fixed at:
o
Baud Rate: 9600
o
Data Bits: 8