Siemens SINUMERIK 840DE SL Commissioning Manual

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1.12 Configuring your own buttons

Buttons can be integrated into a form as action buttons or selection buttons.

1.12.1 Pushbutton

Tag property

The pushbutton is a control element that can be used as a button or checkable button. The

button can be designed by means of attribute definitions in the "softkey look & feel" style as

well as in a customized style. The relevant attributes must be defined with the property tag.

The foreground or background color can be changed using the color_fg, color_bk,

color_fg_pressed and color_bk_pressed attributes.

The pressed/checked or released states are represented by the values one or zero. A handler

function must be indicated to evaluate a button's change of state. The handler function is

indicated with the function attribute in the control tag.

The state of a checkable button can be determined by reading out the control variable or an

assigned reference variable.

With a touch operation, the finger gestures are "pressed" and "released" only when the finger

gesture is "let go".

Syntax

<control name="name" xpos="x position" ypos="y position"

fieldtype="pushbutton" >

</control>

Or with handler function

<control name="name" xpos="x position" ypos="y position"

fieldtype="pushbutton" function="button_handler" hotlink="true" >

</control>

…

<function_body name="button_handler">

…

</function_body>

Generating user dialogs

1.12 Configuring your own buttons

Easy XML

Programming Manual, 12/2017, 6FC5397-1DP40-6BA1 147

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Questions and Answers:

M
mitchelljenniferJul 25, 2025
What to do if all four LEDs on the Siemens Controller PLC flash (DI disaster)?
- J
  Joshua LarsonJul 25, 2025
  If all four LEDs on the Siemens Controller PLC are flashing, it indicates a system error. Here's what you should do: 1. Stop the PLC (set the "PLC" switch to position 2). 2. Perform a hardware reset. 3. Read the diagnostic buffer using STEP 7 to analyze the error in detail. 4. Relay the diagnostic buffer information to the Hotline / Development Service. 5. If requested after the hardware reset, perform a general reset. You can then read the diagnostic buffer with the PLC in the Stop state. Alternatively, resetting or reloading the PLC program might resolve the issue. Even if the system returns to normal, send the diagnostic buffer content to the Development Office.
J
Justin LeeAug 8, 2025
How to troubleshoot no MPI connection to Siemens Controller PLC?
- A
  Amanda CarrollAug 9, 2025
  If there is no connection via MPI to the Siemens Controller PLC, the MPI cable might not be plugged in or could be defective. Also, the STEP 7 software might not be correctly configured for the MPI card. To test, create a link with the programmer in the STEP 7 editor using the "Direct_PLC" connection. A number of node addresses should appear. If they don't, the MPI cable is likely defective or not plugged in.

Siemens SINUMERIK 840DE SL Specifications

General

Application	High-end machine tools
User Interface	SINUMERIK Operate
Axis Capacity	Up to 31 axes
Safety Integrated	Yes
Relative Humidity	5% to 95% (non-condensing)
Control System	CNC
Type	SINUMERIK 840DE SL
Programming Languages	DIN 66025, ISO 6983, G-code
Communication Interfaces	Ethernet, PROFIBUS, PROFINET
Control Loops	Position, Speed, Current
PLC	Integrated SIMATIC S7-300 PLC
Data Storage	CompactFlash card, hard disk
Operating Temperature	0°C to 45°C
Spindle Capacity	Dependent on machine mechanics