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Proton Products InteliSENS DG2030 Diameter Gauge Instruction Manual (Issue 1a)
PROTON 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:
PARAMETER 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.
READING 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:
?[Input parameter number]<CR><LF>
[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:
?[Input parameter number][Space][Number of parameters]<CR><LF>
[Input parameter value]<CR><LF>
Only consecutive parameter values may be requested in a block parameter request.
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