Functions Of The Machine Control Panel - Siemens SINUMERIK 840Di sl Commissioning Manual

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PROFIBUS DP Communication

8.6 DP slave MCP 310

Functions of the machine control panel

The machine control panel offers the following functions:

● Additional I/Os

The function: "Standard" transfers the I/O data to the function and user-specific keys and

● Input data: 8 bytes

● Output data: 8 bytes

The function: "Handwheel" transfers the absolute values of the two to the handwheels that

can be connected to the machine control panel:

● Input data: 2 x 2 bytes

For each handwheel the current handwheel value is transferred as a 16-bit absolute value

relative to the starting value. The starting value for the sensor counter in the handwheel is 0.

The absolute values are transferred to the Big Endian Format.

The data for both handwheels is always transferred. The absolute value for a handwheel that

is not connected is always 0.

If the "Handwheel" function is used, the MCP must be connected to the PROFIBUS

interface X101 of the MCI board. The handwheel is evaluated by the NC and the NC only

has direct access to this PROFIBUS interface.

Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0

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Sinumerik 840die sl control