National Instruments 321042A-01 Manual De Usuario
Chapter 2
Hardware Configuration and Installation
© National Instruments Corp.
2-15
STD-GPIB for Windows
Logic Ground Connected to Shield Ground (Default)
Logic Ground Disconnected from Shield Ground
W4
W4
Figure 2-10. Ground Configuration Jumper Settings
3.
Record the jumper setting on the STD -GPIB Hardware and Software Configuration
Form in Appendix C, Customer Communication.
Form in Appendix C, Customer Communication.
Setting the Operating Mode
The STD-GPIB can operate in 8-bit or 16-bit mode. By default, the STD-GPIB is
configured to operate in 16-bit mode. In 16-bit mode, the STD-GPIB works with any
CPU card that is capable of 8-bit and 16-bit data transfers across the STD bus. If the
CPU card you are using is capable of 8-bit transfers only, you must change the
STD -GPIB setting to 8-bit mode. Follow these steps to change the jumper setting.
configured to operate in 16-bit mode. In 16-bit mode, the STD-GPIB works with any
CPU card that is capable of 8-bit and 16-bit data transfers across the STD bus. If the
CPU card you are using is capable of 8-bit transfers only, you must change the
STD -GPIB setting to 8-bit mode. Follow these steps to change the jumper setting.
1.
Refer to Figure 2-3 to locate the shield ground jumper W5 on the STD-GPIB.
2.
Change the jumper setting for 8-bit operation, as shown in Figure 2-11.
16-Bit
8-Bit
16-BIT
8-BIT
16-BIT
8-BIT
Figure 2-11. Jumper Settings for 8-Bit and 16-Bit Mode Operation