Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual - Manual (Page 118)

G–8
Publication 1794ĆUM057B-EN-P - November 2001
station
an address or software location on the network. Also referred
to as node.
SET command
in a MSG instruction, allows transfer of an element, an array
of elements or an FMS structure to or from a node on the
network.
slave
are only allowed to transmit immediate acknowledge or
immediate response to master requests. At the Link Layer
level, any master can access any slave without restrictions.
Also referred to as passive stations or adapters.
STATUS command
in a MSG instruction, retrieves status information from a
remote node and stores it locally.
system parameters
allow you to check the current state of the coprocessor
third party multivendor configurator
a remote software tool used to define connections between
devices and their communication parameters on the network.
The tool is available on the open market from many vendors.
UINFO command
Unsolicited Variable Information. In a MSG instruction, a
command that sends unsolicited data such as an element,
array of elements or predefined FMS structure.
USTAT command
Unsolicited Status Information. In a MSG instruction, a
command that sends unsolicited status information such as
an element, array of elements or predefined FMS structure.
user interface
three LED indicators located on the front panel of the
coprocessor provide the user with the status of the
coprocessor and its communication channels. Also referred
to as diagnostics.
variable objects
data that can be accessed from the network within an FMA
server.
VFD
Virtual Field Device. A portion of the FMS server
application process that makes a set of resources (data files,
program files, I/O) and their associated functionality
available for control and monitoring. For more information
on VFDs, refer to DIN 19245 Parts 1 and 2: Process Field
Bus.