Siemens SINUMERIK 840Di Manual page 316

10 NC Start-Up with HMI Advanced
10.5 Axes and spindles
Measuring system
switchover
Machine data
Table 10-19 Setpoint/actual-value channels: Machine data
Number
Axis-specific ($MA_ ...)
30100 CTRLOUT_SEGMENT_NR
30110 CTRLOUT_MODULE_NR
30130 CTRLOUT_TYPE
30200 NUM_ENCS
30210 ENC_SEGMENT_NR[0]
30220 ENC_MODULE_NR[0]
30220 ENC_MODULE_NR[1]
30230 ENC_INPUT_NR[0]
30230 ENC_INPUT_NR[1]
30240 ENC_TYPE[0]
Interface signals
Table 10-20 Switching over the position measuring system: Interface signals
DB Bit, Byte
Number
Axis/spindle-specific
31, ... 1.5
31, ... 1.6
References
10-316
The interface signals
S
DB31, ... DBX1.5 (position measuring system 1 selected)
S
DB31, ... DBX1.6 (position measuring system 2 selected)
can be used to switch from the PLC between the two position measuring
systems of a machine axis.
References: /FB/ Description of Functions, Basic Machine
A2, Various Interface Signals
Identifier
Setpoint assignment: Drive type
5 = PROFIBUS DP
Setpoint assignment: Logical drive number
Setpoint output type
0 = simulation
1 = speed setpoint output
Number of measuring channels
1 = one position measuring system installed
2 = two position measuring systems installed
Actual-value assignment: Drive type
5 = PROFIBUS DP
Actual-value assignment: Logic drive number for
position measuring system 1
Actual-value assignment: Logic drive number for
position measuring system 2
Actual-value assignment: Position encoder 1
1 = motor measuring system
2 = direct measuring system
Actual-value assignment: Position measuring sys-
tem 2
1 = motor measuring system
2 = direct measuring system
Actual-value acquisition modes
0 = simulation
1 = incremental encoder
4 = absolute encoder with EnDat interface
Signals from PLC to axis/spindle
Position measuring system 1
Position measuring system 2
/FB/ Description of Functions, Basic Machine
G2 Velocities, Setpoint/Actual-Value Systems, Closed-Loop Control
Section: Setpoint/actual-value system
Name/remarks
Name
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
06.03
Ref.
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