Detailed Description
2.3 Setpoint/actual-value system
Velocities, Setpoint/Actual-Value Systems, Closed-Loop Control (G2)
2-26 Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Prerequisite for routing
All NC machine axes must be uniquely defined in machine data:
MD10000 $MN_AXCONF_MACHAX_NAME_TAB[n] (machine axis name).
This name must be unique throughout the system (all mode groups and channels).
References:
/FB1/Description of Functions, Basic Machine;
Axes, Coordinate Systems, Frames (K2)/
Mode Group, Channel, Program Operation, Reset Behavior (K1)
Speed setpoint routing
For speed setpoint routing, the following setpoint assignments for parameterizing the
relevant machine data must be made:
Setpoint assignment Number
Drive type: Of the bus segment
Drive number/module number: Of the module within the bus segment
Output on drive module/module: Of the setpoint output
Output type of setpoint: Type of speed setpoint output
Setpoint output is unipolar
(only active in conjunction with PROFIBUS DP)
Polarity of the output driver for speed setpoint
output
Index of MD for speed setpoint routing
The index [n] of the machine data for setpoint routing is coded with 0 for setpoint assignment
with default setting 1.
Speed setpoint routing
The following machine data need to be parameterized for each setpoint branch:
MD30100 $MA_CTRLOUT_SEGMENT_NR[n] (setpoint assignment of bus segment):
The number of the bus segment, via which the output is addressed, is entered here.
Depending on the SINUMERIK version, certain bus segments are preassigned.
• Local bus (similar to SINUMERIK FM NC, for example)
= 0
• 611D I/O bus (1st DCM, e.g. SINUMERIK 810D)
= 1
• Local I/O bus
= 2
• 611D I/O bus (2nd DCM)
= 3
• Reserved for virtual buses
= 4
• PROFIBUS-DP (NCU 573.2 and higher)
(PROFIBUS line for ProfiSafe at PLC end)
= 5
• PROFIBUS DP link module (NCU 573.2 and higher)
= 6
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