Table 4-1. Sample READY LED Signals and the Corresponding Status Code Numbers. National Instruments 320727B-01, NI-488.2TM

Installation Verification and Troubleshooting Chapter 4

Step 3. Record Your Status Code Number

When you have computed your status code number, record it on the GPIB -ENET

Hardware and Software Configuration Form in Appendix C, Customer Communication, before calling National Instruments.

Table 4-1 lists some examples of the long and short flashes and the status codes they report.

Table 4-1. Sample READY LED Signals and the Corresponding Status Code Numbers

Number of

Long Flashes

1

2

3

10

5

1

Number of

Short Flashes

1

1

3

8

4

10

Corresponding

Status Code Number

00

10

42

07

23

99

Common Questions

When should I use IBIC 488.2

?

You can use IBIC 488.2

to practice communication with your instrument, troubleshoot problems, and develop your application program. For more information about IBIC 488.2

, refer to Chapter 4, Interface Bus Interactive Control Utility, in the

NI-488.2 User Manual for Macintosh.

How do I use an NI-488.2 language interface?

For information about using NI-488.2 language interfaces, refer to the NI-488.2 User

Manual for Macintosh .

What do I do if the software verification test fails with an error?

Refer to the Troubleshooting Software Problems section of this chapter for information about what might cause this test to fail.

GPIB-ENET for Macintosh 4-4 © National Instruments Corp.

Chapter 4 Installation Verification and Troubleshooting

My driver is not communicating with the GPIB-ENET. What should I do?

Make sure that DIP Switch 7 is set to OFF. If Switch 7 is OFF and the driver still cannot communicate with the GPIB-ENET, make sure that the Ethernet Port Configuration slide switch is in the correct position for your network connections.

My I/O worked with a board interface, but it times out when I use the GPIB-ENET interface. What should I do?

Network communication is slower than straight cable communication. You might need to raise the Timeout value on your NI-488 Config configuration screen.

The Update utility returns the message "Bad checksum." What should I do?

Run the Update utility again. Your imagefile might be corrupted. If the same message appears when you run the utility again, try reinstalling your NI-488.2 software and then running the Update utility again.

I powered off my GPIB-ENET before recording the flashing READY LED pattern.

What should I do?

Try to duplicate the error before calling National Instruments for assistance. Recording the READY LED pattern is not critical to the operation of your GPIB-ENET, but it saves you time and helps Product Support to diagnose the problem more quickly and accurately.

What do I do if I have installed the NI-488.2 software and now my Macintosh crashes upon startup?

Try changing the name of the NI-488 INIT to ZNI-488 INIT . Because INITs load in alphabetical order, the ZNI-488 INIT will load last, preventing possible corruption from INITs that load after it. If changing the name of the NI-488 INIT does not solve the problem, another INIT file might have a conflict with the NI-488 INIT . Try removing some of your other INIT files. You can store them in a temporary folder, in case you need to reload them later. If you are using System 7.5 or later, you can use the

Extensions Manager control panel to disable certain extensions and control panels.

My system has been crashing since I switched to a Quadra computer. What should

I do?

This problem was associated with some versions of the NB Handler INIT . Upgrade to the NI-488 INIT to resolve this situation.

© National Instruments Corp.

4-5 GPIB-ENET for Macintosh

Installation Verification and Troubleshooting Chapter 4

What information should I have before I call National Instruments?

When you call National Instruments, you should have the results of the software verification test. In addition, make sure you have filled out the configuration form in

Appendix C, Customer Communication.

GPIB-ENET for Macintosh 4-6 © National Instruments Corp.

Chapter 5

Using Your NI-488.2 Software

This chapter describes the IBIC 488.2

utility and lists some general programming considerations.

Introduction to IBIC 488.2

The NI-488.2 software includes the Interface Bus Interactive Control utility, IBIC

488.2

. You can use IBIC 488.2

to enter NI -488 functions and NI-488.2 routines interactively and display the results of the function calls automatically. Without writing an application, you can use IBIC 488.2

to do the following:

• Verify GPIB communication with your device quickly and easily.

• Become familiar with the commands of your device.

• Receive data from your GPIB device.

• Learn new functions and routines before integrating them into your application.

• Troubleshoot problems with your application.

For more information about IBIC 488.2

, refer to the NI-488.2 User Manual for

Macintosh.

General Programming Considerations

Depending on the programming language you use to develop your application, you must include certain files, statements, or global variables at the beginning of your application.

For specific instructions, refer to Chapter 2, Developing Your Application, in the NI-

488.2 User Manual for Macintosh .

For information about choosing a programming method, developing your application, or compiling and linking, refer to the NI-488.2 User Manual for Macintosh. For detailed information about each NI -488 function and NI -488.2 routine, refer to the NI-488.2

Function Reference Manual for Macintosh.

© National Instruments Corp.

5-1 GPIB-ENET for Macintosh