Communication Parameters - GE Optica Operator's Manual

Communication
Parameters
Item
Mode Set the method for sending data.
Set the baud rate as required by the receiving device.
Baud
Parity Set the parity as required by the receiving device.
Set the number of data bits as required by the
Data Bits
receiving device.
Set the number of stop bits as required by the
Stop Bits
receiving device
Set the Flow Control mode as required by the
Flow Control
receiving device.
Query Mode Format:
Command:
$HELP < >
Note: The symbol < > indicates a carriage return.
$GETDATA 0 <item> <item> <item> ... <item>
$GETSTATUS 0 < >
Query mode examples:
$GETDATA 0 0 1 < >
Note: The 0 and 1 above, following the "GETDATA 0" command, reference the numeric suffix of
the parameter identifier from Table 4-2 on page 4-5. For example A0 has units Tdew °C, so
the 0 requests Tdew °C.
$GETSTATUS < >
Programming the VGA Optica
Table 4-14: Communication Parameter Options
Function
Returns . . .
Help string
Requested data items
Status string
returns the Dew Point °C, Dew Point °F
Returns a string of 1s and 0s corresponding to PACER,
Service, Control, Heat, Cool, Alarm 1, Alarm 2
January 2006
Available Options
All (Data is sent continuously.);
Query (Data is sent when
requested by receiving device.)
Query mode is described below.
300, 600, 1200, 2400, 4800,
9600, 19200, 38400, 57600
None, Odd or Even
7 or 8
1, 1.5 or 2
None, X-OFF, RTS/CTS
4-17