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c3 Memory Offset. 10 data characters which define the base address of the A24 or A32 address space on the device. This value is expressed in hex format (first two characters are # H). c4 Memory Size. 10 data characters which define the size of the A24 or A32 address space in bytes. This value is expressed in hex format (first two characters are # H). c5 Pass/Failed. Up to 5 data characters which define the status of the device; FAIL | IFAIL | PASS | READY. FAIL = failed self-test, IFAIL = configuration register initialization fails, PASS = self-test passed, READY = ready to receive commands s1 Extended Field 1. Not currently used; returns "" s2 Extended Field 2. Not currently used; returns "" s3 Extended Field 3. Not currently used; returns "" s4 Manufacturer’s Specific Comments. Up to 80 character string contains manufacturer specific data in string response data format. This field is sent with a 488.2 string response data format, and will contain the instrument name and its IEEE 488.1 secondary address unless a start-up error is detected. In that case, this field will contain one or more error codes in the form "CNFG ERROR: n, m, ...,z" . See Appendix B, Table B-3 for a complete list of these codes. System Instrument Command Reference 7-55 VXI:CONFigure :DNUMber? Parameters Parameter Parameter Range of Default Name Type Values Units logical_addr numeric 0-255 (or nothing) none Comments • When logical_addr is not specified, VXI:CONF:DLIS? returns information for each of the devices installed, separated by semicolons. If the Command Module is not the resource manager, it returns information on only the devices in its servant area. • Cards which are part of a combined instrument such as a switchbox or scanning voltmeter always return the same manufacturer’s comments as the first card in the instrument. Information in the other fields correspond to the card for which the Logical Address was specified. • This command has been retained for compatibility with existing programs. For new programs you should use the VXI:CONF:INF? command. • Related Commands: VXI:CONF:DLAD?, VXI:CONF:DNUM?, VXI:CONF:INF?, CONF:HEIR? Example Querying the device list for the System Instrument dimension string[1000] string size large in case of multiple device list VXI:CONF:DLIS? 0 Ask for the device list for the System Instrument enter string enter return data into string Example response data (no error):+ 0, -1, + 4095, + 1301, + 0, + 0, HYB, NONE, # H00000000, # H00000000, READY, "", "", "", "SYSTEM INSTALLED AT SECONDARY ADDR 0" Example response data (with error):+ 255, + 0, + 4095, + 65380, -1, + 0, REG, A16, # H00000000, # H00000000, READY, "", "", "", "CNFG ERROR: 11" :CONFigure :DNUMber? VXI:CONF:DNUM? returns the number of devices installed in the mainframe (including the System Instrument itself). If the Command Module is not the resource manager, it returns the number of devices in its servant area. Comments • Use the VXI:CONF:DNUM? command to determine the number of values which will be returned by VXI:CONF:DLAD?. • This command has been retained for compatibility with existing programs. For new programs you should use VXI:CONF:NUMB? • Related Commands: VXI:CONF:DLAD?, VXI:CONF:DLIS? Example Determining the number of devices within the system VXI:CONF:DNUM? query the number of devices enter statement input number of devices 7-56 System Instrument Command Reference VXI :CONFigure :HIERarchy? :CONFigure VXI:CONF:HIER? Returns current hierarchy configuration information about :HIERarchy? the selected logical address. The individual fields of the response are comma separated. If the information about the selected logical address is not available from the destination device (i.e., the requested device is not in the mainframe) then Error -224 ("parameter error") will be set and no response data will be sent. NOTE This command is included in the E1300/E1301 because it is a required SCPI command. Since there are no message based devices in the E1300/E1301, most of these fields will be null valued for the E1300/E1301. Comments • This command returns the following values: Logical address: an integer between -1 and 255 inclusive. -1 indicates that the device has no logical address. Commander’s logical address: an integer between -1 and 255 inclusive. -1 indicates that the device has no commander or that the commander is unknown. This value is always 0 for the E1300/E1301. Interrupt handlers: a comma separated list of seven integers between 0 and 7 inclusive. Interrupt lines 1–7 are mapped to the individual return values. 0 is used to indicate that the particular interrupt handler is not configured. A set of return values of 0,0,0,5,2,0,6 would indicate that: • handler 4 is configured to handle interrupts on line 5 • handler 5 is configured to handle interrupts on line 2 • handler 7 is configured to handle interrupts on line 6 • handlers 1, 2, 3, and 6 are not configured Interrupters: a comma separated list of seven integers between 0 ...

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