VXI Test Systems, Components and Frequently Asked Questions Page.
Our favorite system is the Hewlett Packard / HP /Agilent E1300A, E1301A, E1301B B size VXI Mainframe. This system is small, versatile, widely available, easy to use and cost effective. Follows is a list of some of the versions of the HP / Agilent E1300 series mainframe and plug in cards:
Manuals:
On occasion we will post manuals that were have scanned from paper (image only, no OCR) in Acrobat format.
The image included here is of the E1300A/B series internal MC68000 based controller shown without an optional memory board installed. Referring to the large image that is linked to the thumbnail the connector on the lower right is the VXI/VME Bus interface connector. The connector on the upper right is the communication and trigger interface connector, this connector has the HP-IB interface, RS-232 interface, Event In, Trigger Out and Pacer Out signals. The connector on the upper left provides the connections for the front panel keyboard and Vacuum Florescent Display. The optional memory expansion cards may be installed in the two sockets in the lower left corner of the board. The board pictured is a late production unit shown removed from the mainframe.
Response: The E1300A serial port follows the electrical conventions of RS-232D. The RS-232 interface of the E1300A is configured as a "Data Terminal", the same as a PC or Terminal and thus a "Null Modem" connection is required between the Terminal or PC and the E1300A VXI mainframe. The connection must be made using a Null Modem adapter or cable or a cable constructed per the illustration below.
HP E1300A RS-232 factory default settings:
If communications can not be established from the terminal or PC with the E1300A VXI mainframe connected through a null modem cable, null modem adapter or cable as illustrated above you can restore the factory defaults by following the instructions below.
Restoring the E1300A RS-232 serial interface to factory defaults:
Warning: If you restore the factory defaults this will clear the User and System non-volatile RAM areas.
With the E1300A mainframe power OFF connect a terminal (VT100 or VT52 emulation works best) set to the E1300A factory default setting listed above. Power ON the mainframe and press and hold the CTRL and the R keys (CTRL-R) while the mainframe performs the "Testing ROM" portion of the self test. The ROM self test occurs during the first 3 seconds after the power is turned on to the mainframe. You must press CTRL-R during the "Testing ROM" portion of the self test. After the self test has completed the mainframe should display "Select an Instrument".
Response: Check the setting of the logical address switches on the VXI cards, no two cards may be set to the same logical address and each address must be an integer multiple of 8, for example 24, 32, 40, 48 etc. up to 232. Exceptions are multiple module instruments, for example a scanning multimeter configuration where an E1326B is set to Logical Address 24 and one or more multiplexors and or switches are set to consecutive addresses of 25, 26, 27 etc.. The logical addresses of the cards need not be contiguous, cards could be set for addresses 24, 32, 64, 72 and 96 for example and this will work fine in an HP E130X mainframe.
If the logical address of all the cards in the system are correct and you have an older E1300A or E1301A mainframe you may need to set the VME IACK (Interrupt Acknowledge) Switches on the back plane board inside the mainframe. Later production mainframes handle the IACK bypass, or daisy chaining, automatically but the older mainframes may have dip switches on the VME back plane that must be set by the user. The IACK bypass switches are accessible without disassembling the mainframe by removing any cards, adapters and covers installed in the A-Size slots 10, 11 and 12 at the rear of the instrument. Empty Mainframe slots that are between installed VXI cards must have their IACK switches set to "Empty", Mainframe slots that are occupied by VXI Cards must have their IACK bypass switches set to "Full" See the illustrations for setting of the IACK Bypass Switches and E1300 Slot assignments.
Click for illustration of HP E1300X IACK Bypass Switches
Click for illustration of HP E1300X Slot Assignments
If you plan to install cards contiguously in the mainframe starting at slot 3 and continuing with slot 4, 5, 6 ,7 etc. the IACK Bypass switches for these slots can be set to "Full" as the setting of switches for slots greater than the lowest numbered occupied slot have no effect.
Response: The unit was completely checked out before we shipped. Are you using the Null Modem Cable that was shipped with the mainframe? A null modem cable or adapter is required when connecting the E1300 series mainframe to a PC serial interface, a standard RS232 cable will not work. Be sure the terminal settings on the PC are set to 9600 Baud, No Parity and 1 Stop Bit, these is the default serial interface settings and how we always ship these. Yes, if the unit we sold you actually turns out to be defective we will repair or replace it, be sure and contact us by e mail with your phone number so we can contact you and see if we can sort out your problem. Returns must be assigned an RMA number by us before return shipment. P.S. Get a real terminal emulation program like Procomm Plus and trash that hyper-terminal piece of junk.
Answer: 42
Answer: Yes. But you would have to pay us an outrageous sum of money to get one. The E1300A and E1301A manuals are hard to find and as far as we know they are not available for download from Agilent Technologies. However the E1406A is nearly identical to the E1300A, E1301A, E1301B, E1306A, E1405A and E1405B command modules in operation and functionality. The E1406A users manual may be down loaded from the Agilent Technologies Web site in Adobe Acrobat (PDF) format. Agilent Technologies Test and Measurement
One of the nice features of the Agilent E1300A, E1301A/B, E1405A/B and E1406A is their ability to be operated in a stand alone mode using the built in IBASIC controller if that option is installed. In a hostile environment a Non-Volatile RAM Disk can be configured within the instrument eliminating the need for a floppy or fixed disk drive for data logging. If you are lucky enough to have an E1300 series mainframe with the DC to DC power supply installed you can operate the VXI mainframe from a battery or 12VDC vehicle power. The E1300A (blank front panel with no display or keyboard) consumes very little power, about 40 watts with a nice compliment of cards. We have taken the guts from a few E1300As and installed them in plain VME P1 card cages making a compact data acquisition package that is 8 by 11 by 7 inches with the E1300A controller and five data acquisition cards. Using the on board 2 Megabytes of battery backed RAM and the IBASIC controller we load our data acquisition software written in IBASIC into the mainframe through the serial port, setup parameters and start execution using a palm pilot running Online, from Conklin Systems*. Collected data is stored in a file in the battery backed RAM of the E1300A controller and download as desired to the Palm Pilot. A lap top could be used as well. You could build a system like this and throw it in the trunk of your rally car monitoring eight thermocouples in the exhaust manifold, pressure transducers in the tailpipe, read the oxygen sensor output voltage, oil pressure, manifold vacuum, engine temperature, fuel flow, RPMs, speed and distance.
* This link must not be construed as an endorsement of the current version of Online being sold and supported by Conklin Systems, we have not tried it out yet. We'll down load the latest demo and give it a thorough thrashing. If we like it we will plunk down the $34.95 and post our comments here.
PC Terminal Setup:
Procomm Plus Meta Keys: To map the VT100 Terminal emulation MetaKeys in Procomm Plus to the function keys on the HP E1300 and E1400 terminal interface display use the following mapping:
FORM MAIL WILL RETURN SOON after we figure out how to stop the cybervermin from abusing it.