Rockwell Automation 1775-KA PLC-3 Communication Adapter Module User Manual - Manual (Page 83)

Message Procedure Commands
Chapter 6
6Ć5
For example, the command
#H027$0121=17407
would generate a protected write command to write the value 1740–7 into
word 121 of Data Highway station 27. The command
#H027$0121=17407 U
would generate an unprotected command to do the same thing.
You may disable the transmission of unprotected commands through LIST
options (section titled Module Options, chapter 2).
The CREATE command generates a symbolic address and assigns it to a
logical address. Table 6.A illustrates the format of the CREATE
command. To create a local symbolic address, use the CREATE command
by itself (the modifier/LOCAL is optional). To create a global symbolic
address, use the modifier/GLOBAL after the CREATE command. In
either case, the symbol has meaning only at the station where it was
created.
The modifier/GLOBAL can be abbreviated to /G, and /LOCAL can be
abbreviated to /L. For example, the statement
C/G @ TOTAL $E0.0.0.7
creates the global system symbol TOTAL to represent the logical address
E0.0.0.7.
Note that this CREATE command for generating symbolic addresses
should not be confused with the CREATE command for allocating file
space in PLC–3 programming (Chapter 4).
The DELETE command serves three main purposes:
Deleting message procedures from PLC–3 memory
Deleting symbolic addresses
Deleting interprocedural user symbols
CREATE Command
DELETE Command