Siemens SINUMERIK 840D sl Function Manual page 425

Actual-value routing
For actual-value routing, the following actual-value assignments for parameterizing the
associated machine data must be made:
Actual-value assignment
Drive type:
Drive number/module number:
Input on drive module/measuring circuit module:
Type of actual-value acquisition (position actual
value):
Encoder set independently/dependently
Machine data actual-value routing
The following machine data must be parameterized for each actual-value branch:
MD30210 $MA_ENC_SEGMENT_NR[n] (actual-value assignment of bus segment):
The number of the bus segment, via which the encoder is addressed, is entered here.
Depending on the SINUMERIK version, certain bus segments are preassigned.
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MD30220 $MA_ENC_MODULE_NR[n])
(actual-value assignment: drive module number/measuring circuit number):
The number of the module in the bus segment, via which the encoder is addressed, is entered here.
The logical drive number of the axis module can be set via machine data:
MD13010 $MN_DRIVE_LOGIC_NR[n]
for:
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MD30230 $MA_ENC_INPUT_NR[n])
(actual-value assignment: Input on drive module/measuring circuit module):
The number of the input, to which the position actual-value encoder is connected, is entered here.
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Basic logic functions: Velocities, Setpoint/Actual Value Systems, Closed-Loop Control (G2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Local bus (similar to SINUMERIK FM NC, for example)
611D I/O bus (1st DCM, e.g., SINUMERIK 810D)
Local I/O bus
611D I/O bus (2nd DCM)
Reserved for virtual buses
PROFIBUS-DP (NCU 573.2 and higher)
(PROFIBUS line for ProfiSafe at PLC end)
PROFIBUS DP link module (NCU 573.2 and higher)
SINUMERIK 810D
SINUMERIK 840D as 611 digital drive number
SINUMERIK 840D PROFIBUS on link module
SINUMERIK 840D/810D:
2.3 Setpoint /actual-value system
Number:
Of the bus segment
Of the module within the bus segment
Of the setpoint input
The encoder type used
The encoder is independent
Actual-value corrections by the NC
Range of values 0 - 15
Range of values 0 -31
Range of values 0 -125
= 1 or 2 (counting down)
Detailed description
= 0
= 1
= 2
= 3
= 4
= 5
= 6
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