01/2007
8.7 DP slave: MCP 483
8-212
© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
The function transfers input/output data from the function keys and user–spe-
cific keys and outputs:
S Input data: 8 byte
S Output data: 8 byte
The input/output data for machine control panel MCP 483 is compatible with the
input/output data from the previous machine control panel:
– Machine control panel (MCP), MPI
– 19” machine control panel
The function transfers the absolute values for the two handwheels that can be
connected to the machine control panel:
S Input data: 2 x 2 bytes
Absolute value handwheel 1
Low byte
High byte
Absolute value handwheel 2
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 in big endian format.
The data for both handwheels is always transferred. The absolute value for a
handwheel that is not connected is always 0.
Notice
If the ”Handwheel” function is used, the machine control panel must be
connected to 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.
The function transfers the data for all non–standard inputs/outputs:
S Direct control keys
S Customer keys: 6 signals (bit 0 to bit 6)
S Rotary switch
with the following distribution:
S Input data: 5 byte
Low byte
High byte
Customer
keys
Direct control keys (OP 012)
1st rotary
switch
2nd rotary
switch
S Output data: 2 byte
Low byte
High byte
Reserved,
always 0
Customer
LEDs
Default
Hand wheel
Additional I/Os
8 PROFIBUS DP Communication
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