Siemens SINUMERIK 840D sl Commissioning Manual

Function name Description
Ncfunc cap write 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.
Attributes:
● return - Execution status
– Value = 0 - faultless
– Value = 1 - The variables could not be read
● rows - Number of additional lines of an array to be written (optional)
If an array index is defined for the reference variables, as from this
index, the function copies the values into the target variable.
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>
or
<let name="cu_p978" dim="25" ></let>
...
...
<function name="ncfunc.cap.write" return="error"
rows="23">cu_p978, "drive/cu/p0978[0, 1]"</
function>
Generating user dialogs
1.10 Predefined functions
Easy XML
Programming Manual, 12/2017, 6FC5397-1DP40-6BA1 99

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based