3130
Users Manual
32
Compound Commands
Commands that have more than one command on one line.
For example:
PRES_UNIT LOWER, PSI;PRES_UNIT?
This command sets the pressure unit to PSI on the lower display and queries the
Product to verify. In this case, it will show the pressure units of all three displays:
BAR,BAR,PSI
Character Processing
The data entered into the Product is processed as follows:
• ASCII characters are discarded if their decimal equivalent is less than 32 (space),
except 10 (LF) and 13 (CR):
• Data is taken as 7-bit ASCII.
• The most significant data bit is ignored.
• Upper or lower case is acceptable.
Response Data Types
The data shown by the Product can be divided into these types:
Integer
For most computers and controllers they are decimal numbers ranging from -32768
to 32768.
For example:
FAULT?
Could show 110
Refer to the Error Codes table (Table 8) for more information on error codes.
Floating
Floating numbers can have a maximum of 15 significant figures and exponents.
For example:
VAL?
Shows 5.830000E01,PSI,0.000000E00,PSI,0.000000E+00,A
Character Response Data (CRD)
Data shown as keywords.
For example:
PRES_UNIT?
Shows BAR,BAR,PSI
Indefinite ASCII (IAD)
Any ASCII characters followed by a terminator. For example:
*IDN?
Shows Fluke, 3130, 1234567, 1.00 (1234567 is the serial number)
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