HP E8491A manual Installing VXI Instruments

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If you want the E1406 to provide slot 0 functionality in addition to providing an HP-IB interface, set its configuration as follows:

1.Set the E1406 logical address to a value other than 0.

2.Set the Slot 0 and System Controller switches to “Enable” (default).

3.Set the CLK 10 source to “Internal” (default).

4.Set the VME BTO Disable switch to 0 - Enable (default). Set VME Bus Timeout (BTO) on the E8491A to ‘Off’ (see “Editing the

HP E8491A Configuration” later in this chapter).

5.Set the E1406 servant area to include the logical addresses of those instruments it is to control. Note:

E1406 servant area = (E1406 logical address + 1) through (E1406 logical address + servant area switch setting)

6.Install the E1406 in slot 0.

If the E1406 is not the slot 0 device, its slot 0 functionality must be disabled. From step 2 above, set the E1406A Slot 0 and System Controller switches to “Disable”. From step 4, set its VME BTO Disable switch 1 and ensure that VME Bus Timeout (BTO) on the E8491A is set to ‘On’.

If you are using the E8491A in a configuration with multiple mainframes linked with MXI extender cards, the E8491A must be the resource manager; however, VME Bus Timeout (BTO) must be disabled (off - Step 4 above). Again, the E8491A is generally installed in mainframe slot 0 so that it also provides the system’s slot 0 functionality. Refer to the MXI documentation for configuration guidelines based on where the E8491A is installed.

Where to go Next If you are installing the IEEE 1394 interface and your VXI system for the first time, continue with “Step 3: Installing VXI Instruments.” If your VXI instruments are already installed, proceed to “Step 4: Installing the HP I_O Libraries.”

Step 3: Installing VXI Instruments

Generally, any VXI instrument can be installed in any slot other than slot 0.

When installing instruments, notice that the E8491A and the IEEE 1394 bus do not extend the (VXI) backplane between frames in multi-frame VXI systems (MXI cards are required). This means that the multimeter and multiplexers in a VXI scanning multimeter for example, must be installed in the same mainframe (in adjacent slots). Devices sharing the VXI Local bus must also be installed in the same mainframe.

Installing C-sizeFigure 2-8 shows the installation of C-size instruments.

Instruments

20 Interface Installation and Configuration

Chapter 2

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Contents Contents Chapter Index Contents HEWLETT-PACKARD Warranty Statement Documentation History Manufacturer’s Name Page Business Reply Mail Page Interface Installation Configuration Component OverviewVXI Programming Using Ieee 1394 Serial Bus Additional InformationInterface Installation and Configuration Installing Ieee Host AdapterLayout of the Adaptec AHA-8940 1394-to-PCI Host Adapter Locating a PCI bus Expansion Slot Connecting the Power Cable Installing HP E8491A Interconnect Where to go NextPage Connecting the HP E8491A to the Host Adapter Installing VXI Instruments InstrumentsInstalling C-size Instruments Installing A- and B-size Instruments Shows the installation of A- and B-size instrumentsPage Interface Installation and Configuration Chapter Configuring the HP E8491A Interconnect 10. The HP IO Libraries Program Group11. The HP IO Libraries IO Config Utility Editing the HP E8491A Configuration 12. Editing the HP E8491A ConfigurationInstrument Drivers InstallingEditing the HP E8491A Configuration on Windows 95 Platforms Verifying the Installation Viewing the Resource Manager Output 17 is a partial listing of a typical resource manager output Page Running the Resource Manager Page VXI Programming Using the Ieee 1394 Serial Bus Optimizing Programs Block Data TransfersBlock Transfers using HP VXIplug&play Drivers For i=0 i10 i+=2 Printf%lf\n\n,dataPtri*range/32768 Comments HP Visa Error checking routine Comments HP E8491A Triggering TTLTRG7 TTLTRG0Configuring the E8491A Trig In and Trig Out Ports ItrigallTurn off the autozero function iprintfe1412, Zeroauto OFF\n Program, ivxitrigroutee8491s, ITRIGEXT0 Using HP E8491A Shared Memory Locating E8491A Shared MemoryLocating Shared Memory Using HP Visa Starting address of E8491A shared Memory hexadecimal Storing Readings Shared Memory HP Visa Example #define E8491 VXI00INSTRUnsigned char ViClosefw E8491 Error handling function Storing Readings Shared Memory Sicl Example Ivxirminfoe8491, 0, &info startaddr = info.memstart Comments Ieee 1394 Fundamentals Interface Overview Ieee 1394 Topology and TerminologyFeatures of the Ieee 1394 Bus Terms shown in -1 are defined in the following tableOptimizing the Configuration Ieee Data Transfer ProtocolIeee 1394 Fundamentals and Interface Overview Chapter Adaptec AHA-8940 Host Adapter Interface Cable HP E8491A PC to VXI Interconnect PIN #Configuration Label Using the HP E8491A With the HP E1406 Command Module HP IO LibrariesInterface Characteristics VXI Characteristics GeneralExternal Trigger Output CLKExternal Trigger Input Cooling Trigger DelaysPower Supply Loading Specifications Appendix a Editing the HP E8491A Resource Manager Configuration Configuration File OverviewPage Page Page Using ivxisc Utility Function OverviewPage Iclear Sicl interface name, logical address Page Index MXI Trig In specifications Index
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