NOVUS myPCProbe User Manual

Page 11

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myPCProbe

NOVUS PRODUTOS ELETRONICOS LTDA www.novusautomation.com

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The simplest way to receive and display data is using a simple communication terminal software, like Windows®
HyperTerminal. This software display on the screen all data received in the specified COM port. Other softwares like
Matlab, Simulink, HPVee, Testpoint, can also be configured to receive and parse measured data.

When operating in the auto-send mode, myPCProbe doesn’t expect to receive any information from the USB port. It
transmits data continuously, with no control from the receiver. If, during a transmission, the module receives a Modbus
RTU command, it will suspend the auto-send mode for 3 seconds and answer the Modbus request. After 3 seconds the
auto-send mode will resume.

The line of text sent after each measurement interval has the following format:

#AAA;BBB;CCC;DDD;EEE\r\n

Where:

#

” is the start of line delimiter.

;

” is the separator of measurement values.

AAA

” is always 0 (zero).

BBB

” is the value of channel 1 (TEMP model) or humidity (RHT model).

CCC

” is the value of temperature (RHT model).

DDD

” is the value of the ambient temperature (TEMP model).

EEE

” is the time in milliseconds since the transmission of the first line.

\r\n

” are ASCII values 13 (Carriage Return) and 10 (Line Feed), end of line delimiters (these

characters are not visible).

Measurements containing values with decimal separators will be transmitted with the character ‘.’ (ASCII 46). Examples:

#0;258.1;-5.7;24.6;16772

#0;74.0;50.3;0;4900

#0;-10.9;0;19.4;338105

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