Rockwell Automation 1779-KP3R DATA HIGHWAY II - Manual (Page 45)

Programming
Chapter 3
3Ć10
The KP5 can also have more than one user. When using the KP5 as a
Data Highway II/Data Highway Plus interface, you can use user
numbers from 2 to 20 to identify Data Highway Plus devices.
For example, the address of a PLC–5 (that has its node address
switches set to 4) connected to a KP5 (with a node #20) that is
connected to a Data Highway Link might look like: :20.04 (figure 3.2).
Figure 3.2
Addressing a Node When the Interface Has More Than One Device Attached
KP5
PLC-5 PLC-5
Data Highway II Link
Node #20
User #4 User #5
Address :20.04
11014-I
In addition to addressing a node, you need to address the PLC controller
memory at your node or the memory of the device connected to another
node. Data is referenced by its address in memory. In a command line,
you must precede a memory address with a dollar sign ($), which acts as a
delimiter to tell the KP3 module that it has encountered a data address.
A memory address is made up of one or more of the following parts:
This: is:
wordaddr the numerical address of a word.
fileaddr the alphanumeric address of a PLC-2, PLC-3 or PLC-5 controller file.
size the number of words of data you are transferring; this is always preceded
by a comma (,).
bit the number of a particular bit within the addressed word; this is always
preceded by a back-slash mark (/).
extraddr PLC-3 extended address format. You can use this to address any
memory section, not just a data table section. Refer to the PLC-3
Programmable Controller Programming Manual (publication 1775-6.4.1)
for more information on extended addressing.
imblock immediate block number at some remote KP3.
Addressing Memory