FUTEK IPM52x (D520) Digital Display - Manual (Page 2)

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RS232 CONNECTIONS
The picture to the right shows the
connections for the RS232
communications cord. This
RS232 connections (9600 Baud,
no parity, 8 Data, 1 Stop Bit) is
used to connect with a computer.
This connection will allow the
meter to be controlled by the
computer for custom operations.
Commands
The commands for the D520 series of meters are listed in the following tables. Each table represents a
different function of the D520 meter. Programming this meter can be done through any computer
language however the commands will stay the same. By incorporating the various tables it will be
possible to create commands for any number of meter functions. The structure of these commands is
highlighted below.
Every command starts with a recognition character, ‘*’ or ‘?’. ‘*’ lets the computer know that you are
writing information to the meter and ‘?’ begins every command where information is being read from the
meter.
Following the ‘*’ or ‘?’ is a four character code. These codes are displayed in the attached tables. In
order to read values from the meter it is necessary to start with the ? character and follow it with the four
digit code. However to write values to the meter it is necessary to start the command with the * followed
by the four digit code and then followed by either the value you wish to enter or the command option for
the setting you are choosing. Below are some examples of simple commands for this meter series. All of
the examples refer to the attached tables.
EXAMPLES
Example 1:
‘*DEC1 2’
where: * - Writing recognition character
DEC – Command Mode for Decimal Point Selection (Table 1)
1 – The channel that the Command Function refers to
2 – The Command Option, 2 refers to the number of decimal places you are telling the meter to
display.
Thus, this command will tell the meter to display two decimal points on channel 1.
Example 2:
‘*FNC1
4’
where:
* - Writing recognition character
FNC – Command Mode for F-Keys (Table 8)
1 – The F-key you are writing to
4 – Command Code for Tare 1 (Tare 9)
Thus, this command will tell the meter to set key F1 as a Tare.