HVG-2020B Instruction Manual
EAR99 Technology Subject to Restrictions Contained on the Cover Page
Page 29 of 40
For carriage-return (default), enter “S65=x0D”.
For line feed, enter “S65=x0A”.
For carriage-return linefeed, enter “S65 =x0D0A”.
5.2.7.2.
RS485 Mode Responses
In RS485 mode, all responses and error messages from commands sent using the broadcast address
(0x99) will be suppressed. The S5 command is an exception to this rule; when the device is the only
HVG-2020B on the bus, the command *99 S5 can be used to get the device’s address.
Other than the above behavior, responses will be no different than responses in RS232 mode. There
will be no address in responses.
5.2.8. Commands
5.2.8.1.
Reporting Commands
P
Pressure
Returns the current pressure in the units specified in S22.
P1
Start Pressure Streaming
Causes pressure readings to be output every 1/2 second.
P0
Stop Pressure Streaming
Stops the 1/2 second pressure reading output.
R
Pirani Pressure
Returns the current Pirani sensor pressure in the units specified in S22.
Z
Piezo Pressure
Returns the current piezo sensor pressure in the units specified in S22.
X
Pirani Drive Data
Returns Pirani drive counts, voltages and operating temperature.
XXP
Get Pressure and Temperature
Returns current pressure and temperature readings.
5.2.8.2.
System Commands
A
Device Address (Read/Write)
The RS485 address (also given in S5). For backward compatibility. The same as S5.