National Instruments FOUNDATION NI-FBUS Hardware And Software User Manual page 28

Chapter 2 Installation and Configuration
Caution Do not modify the Advanced parameters without good reason. If you must
modify parameters for certain devices, the device manufacturer will recommend settings.
Modifying these parameters can have an adverse affect on data throughput rates. If settings
are incorrectly modified, some devices might disappear off the bus.
NI-FBUS Hardware and Software User Manual
3. Enter an interface name for the port, or use the default name.
The interface name is for local use on the PC.
4. Enter a unique tag in the Device Tag field, or use the default device
tag. The device tag is the name that will be visible on the Fieldbus
network to the other devices.
5. Your interface must be given either a fixed or visitor device address for
you to start using NI-FBUS. This address must be unique on the link
to which the interface is connected.
a. To assign a fixed address to your Fieldbus interface, choose Fixed
Address and enter a value in the range 0x10 to 0xF7.
By convention, the lower addresses starting at 0x10 are usually used
for interface boards and link masters. Upper addresses, starting at
0xF7 and working down, are generally used for other devices.
Using a lower address for your interface will reduce the likelihood
that the interface will conflict with another device on the bus.
b. If you want your interface to be a temporary device that you do not
intend to connect to the Fieldbus for an extended time, choose
Visitor Address. Over a long period of time, using a visitor address
could break VCR endpoints and cause
c. If you want third-party Fieldbus configuration software to assign
an address to your interface over the Fieldbus, choose Default
Address. You should only choose to use a default address when
you want third-party configuration software to assign a permanent
address. A device at a default address cannot be communicated
with until a permanent address has been assigned by the
configuration software.
6. Select a Device Type. You should choose to use Link Master Device.
7. Make sure that NI-FBUS is selected for Usage, unless you will be
using the board in conjunction with the NI-FBUS Monitor software.
If you are using this interface as a bus monitor, the other interface
(if this is a two-port board) cannot be used for NI-FBUS. This means
that you must have another link master on the link, either another
NI-FBUS interface device or a device with link master capabilities.
NI-FBUS software assigns default values for other network
communication parameters.
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errors.
VCR_FULL_ERROR
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