Fluke 5500A Operator's Manual page 233

x
SRC_PREF?
IEEE-488
(Source Preference query) Return the source preference from 5500A Calibrator or
5725A Amplifier, when a 5725A Amplifier is attached.
Responses:
P5500
P5725
Example: SRC_PREF? returns P5725
Return P5725 when the source preference is the 5725A Amplifier.
x
*SRE IEEE-488
(Service Request Enable command) Load a byte into the Service Request Enable (SRE)
register. (See "Service Request Enable Register (SRE)" in Chapter 5. Since bit 6 is not
used (decimal value 64), the maximum entry is 255 - 64 = 191.
Parameter: <value>
Example:
*SRE 56
Enable bits 3 (EAV), 4 (MAV), and 5 (ESR).
x
*SRE?
IEEE-488
(Service Request Enable query) Return the byte in the Service Request Enable (SRE).
Response: <value>
Example: *SRE? returns 56
Return 56 when bits 3 (EAV), 4 (MAV), and 5 (ESR) are enabled.
x
SRQSTR
IEEE-488
(Service Request String command) Set the Serial Mode SRQ (Service Request)
response (up to 40 characters) in the 5500A non-volatile memory. (While saving
configuration data in the non-volatile memory, a period of about 2 seconds, the 5500A
does not respond to remote commands.) The SRQSTR is sent to the host over the serial
interface when the SRQ line is asserted (terminal mode only). Default format is:
SRQ: %02x %02x %04x %04x
where the term %02x (8 bits) means print the value in hexadecimal with exactly 2 hex
digits, and %04x (16 bits) means print the value in hexadecimal with exactly 4 hex
digits. The string representations are:
SRQ: (STB) (ESR) (ISCR0) (ISCR1)
See the commands, respectively, *STB?, *ESR?, ISCR0?, and ISCR1? A typical
string in the default format sent to the host is: SRQ: 44 00 0000 1000. This
command is for format. See the SPLSTR command for the serial poll response.
Parameter:
"<string>\n"
Example:
SRQSTR "SRQ: %02x %02x %04x %04x\n"
Set the SRQSTR to the default values SRQ: %02x %02x %04x %04x\n.
x x
RS-232
(5500A Calibrator is set as the source preference)
(5725A Amplifier is set as the source preference)
x x
RS-232 Sequential
(the decimal equivalent of the SRE byte, 0 to 191)
x x
RS-232 Sequential
(the decimal equivalent of the SRE byte, 0 to 191)
x x
RS-232 Sequential
(\n represents the Line Feed character, hex 0A)
Summary of Commands and Queries
x
Sequential Overlapped
x
x
Overlapped
Coupled
x
x
Overlapped Coupled
x x
Overlapped
Remote Commands
x
Coupled
Coupled
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