Addressing Nc Variables; Generating Nc/Plc Addresses During The Runtime; Addressing Drive Components - Siemens SINUMERIK 828D Commissioning Manual

Generating user dialogs
1.8 Addressing components
1.8.2

Addressing NC variables

Addressing the NC variables starts with the path section nck.
This section is followed by the data address; its structure should be taken from the List Manual
NC Variables and Interface Signals.
Example:
<LET name = "tempStatus"></LET>
<OP> tempStatus ="nck/channel/state/chanstatus" </OP>
1.8.3

Generating NC/PLC addresses during the runtime

It is possible to generate an address identifier during runtime.
In this case, the content of a string variable is used as address in an operation statement as
well as in the nc.cap.read and nc.cap.write functions.
Observe the following for this type of addressing mode:
● Write the variable names in quotation marks.
● Use three ‚$' characters as prefix for variable names.
Syntax:
"$$$variable name"
Example:
<PRINT name="var_adr" text="DB9000.DBW%d"> 2000</PRINT>
<OP> "$$$var_adr" = 1 </OP>
1.8.4

Addressing drive components

Addressing the drive components starts with the path section drive.
Then the drive device is specified:
CU
DC
The parameter to be set is added to this section.
Example:
<LET name="r0002_content"></LET>
<LET name="p107_content"></LET>
<!— Reading of value r0002 on the CU ->
<OP> r0002_content = "drive/cu/r0002" </OP>
<OP> r0002_content = "drive/cu/r0002[CU1]" </OP>
76
Programming Manual, 10/2015, 6FC5397-3DP40-5BA3
Easy XML