Chapter 2
Configuration and Startup Procedures
2-20
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You can change the self-assigned default GPIB address of the GPIB-VXI/C
through the nonvolatile memory configuration as described in the
section of Chapter 4,
. The default GPIB address of the GPIB-VXI/C when
configured for multiple secondary addresses is Secondary Address 0
(Primary Address 1). The default GPIB address of the GPIB-VXI/C,
when configured for multiple primary addresses, is Primary Address 1
(no secondary address).
At times, especially when using multiple primary addressing, you may
find it necessary to avoid particular GPIB addresses to avoid conflicts with
GPIB instruments outside of the VXI mainframe. You can specify what
GPIB addresses to avoid through the nonvolatile memory configuration as
described in the
Change Configuration Information
section of Chapter 4,
System Configuration Table
During the execution of the RM and general configuration operations,
the GPIB-VXI/C builds up a table of system configuration information.
Each device has an entry in the table containing the device’s logical
address, its Commander’s logical address, its GPIB address, slot number,
device class, manufacturer ID number, model code, memory space
requirement, memory base address, and memory size. The GPIB-VXI/C
retains this table after the RM and general configuration operations
are complete. The information in the table is accessible through the
GPIB-VXI/C local command set. The GPIB address entry is meaningful
only for immediate Message-Based Servants of the GPIB-VXI/C.
Non-Slot 0 Resource Manager Configuration
Follow these steps to configure the GPIB-VXI/C for Non-Slot 0 Resource
Manager operation. Refer to Table 2-11 for the switch and jumper settings.
1.
Disable the VXIbus Slot 0 hardware functions.
2.
Set the model code of the GPIB-VXI/C to be configured for
Non-Slot 0 operation using the nonvolatile configuration mode.
3.
Set the logical address to 0 in nonvolatile configuration mode or by
using DIP switch SW1.
