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Proton Products InteliSENS DG2030 Diameter Gauge Instruction Manual (Issue 1a)
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ROTON STANDARD PARAMETER ACCESS PROTOCOL
This protocol provides access to individual parameters or blocks of parameters and is typically used in
a production environment where the gauge is connected to a computer, PLC or similar device.
The parameters consist of 16-bit words (DW) and are divided into input and output groups:
•
Input parameters may be read and written and are used to configure the gauge.
•
Output parameters are read only and provide access to gauge status and measurement data.
They may be requested to stream continuously from the gauge.
The Proton standard protocol RS-232 data format is:
Number of data bits
Parity
Number of stop bits
Flow control
Default baud rate
8
None
1
None
115200 bit / s
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ARAMETER WORD FORMATS
Bit pattern words
Words defined as a bit pattern are formatted as 4 characters representing bits 15 – 0 in hexadecimal
(0 – 9; A – F in capitals only), with bit 15 as the most significant bit. Unused or reserved bits are set to
binary zero.
R
EADING INPUT PARAMETERS
If a PC-based terminal program (such as MS Windows HyperTerminal) and keyboard is being used
for RS-232 communication with the gauge, then the carriage return followed by line feed (<CR><LF>)
sequence of commands can be replaced by a single press of the ‘Enter
↵
’ key.
Reading a single input parameter
Use the following request format to read a single input parameter value:
Request
format
?[Input parameter number]<CR><LF>
Response
format
[Input parameter value]<CR><LF>
Reading a block of input parameters
Use the following request format to read a contiguous block of input parameter values:
Request
format
?[Input parameter number][Space][Number of parameters]<CR><LF>
Response
format
[Input parameter value]<CR><LF>
Only consecutive parameter values may be requested in a block parameter request.
