Rockwell Automation 1779-KP3R DATA HIGHWAY II - Manual (Page 44)

Programming
Chapter 3
3Ć9
You need to specify both of these to create a complete address. The
general format is:
<link> : <node> . <user> <&> <addr> <, or / > <size>
Information on specifying link, node and user numbers is covered in the
following section. Information on specifying addr (addresses) is covered
in the section titled Addressing Memory.
The order of the addressing Data Highway II nodes is:
<link number> :<node number> .<user number>
This is an example of a node address:
1 :50.1
Where: is:
1 the link number
: a delimiter; must precede the node number
50 the node number; must be preceded by a colon delimiter
. a delimiter; must precede the user number
1 the user number; must be preceded by a decimal point delimiter
You must assign Data Highway II nodes addresses that include each of the
following:
link number, which is the number of the link you are communicating
from. Note that you can omit this parameter, or use zero in its place, if
the remote node is on the local link.
node number, which is the address for the communication interface on
the link. Enter a number from 1 to 376 (octal). Node addresses 0 and
377 are reserved on Data Highway II and cannot be used.
user number, which identifies the particular device attached to the
communications interface. It is optional; the default is user 1. You do
not need to specify the user number when you are transferring data to
or from a KP2, KFM, or another KP3 (you do not need to specify a user
number if you are transferring an immediate read command to a KP2 or
KP3). The KFL can have more than one device connected to it. Use
device number 1 to address KFL channel 1, and 2 to address KFL
channel 2.
Addressing Data Highway II
Nodes