Predefined Functions - Siemens SINUMERIK 828D Commissioning Manual

1.9

Predefined functions

The script language offers various string processing and standard mathematical functions. The
function names listed below are reserved and cannot be overloaded.
Function name
Ncfunc cap read
Ncfunc cap write
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Description
The function copies a value from the specified address into a local
variable. If the read operation was error-free, then the return variable
contains the value zero.
Contrary to the operation instruction, in the event of a fault, this func‐
tion does not interrupt the processing of the script operations.
Syntax:
<function name="ncfunc.cap.read" return="error">
lokale variable, "address"</function>
Example:
<let name="error"></let>
<function name="ncfunc.cap.read" return="error">
3, "drive/cu/p0009"</function>
<if>
<condition>error != 0</condition>
<then>
<break />
</then>
</if>
The function writes a value into the specified variable. If the write op‐
eration was error-free, then the return variable contains the value zero.
Contrary to the operation instruction, in the event of a fault, this func‐
tion does not interrupt the processing of the script operations.
Syntax:
<function name="ncfunc.cap.read" return="error">
local variable or constant, "address"</function>
Example:
<let name="error"></let>
<function name="ncfunc.cap.write" return="error">
0, "drive/cu/p0009"</function>
<if>
<condition>error != 0</condition>
<then>
<break />
</then>
</if>
Generating user dialogs
1.9 Predefined functions
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