12 Functional Descriptions 09.95
12.28.8 Overview of function identifiers and configuring parameters (DB 2, DR 2 ... DR 6)
Signal
number
Meaning Data
format
1)
Unit Attribute
5 Part setpoint SL 0.01 % of max. load speed
3)
Read
6 Synchronism deviation SL UMS Read
7 Angular offset (mech.
coupling)
SL UMS Read
8 Absolute position actual
value (without modulo
compensation)
SL UMS Read
9 Part actual value 1st
measuring system
SL 0.01 % of max. load speed
3)
Read
10 Part actual value 2nd
measuring system
SL 0.01 % of max. load speed
3)
Read
AXIS
100 Contour deviation SL UMS Read
101 Abs. compensation value SL UMS Read
SPINDLE
200 Current speed setpoint
(before ramp generator)
SL (0.1) RPM Read
201 Speed setpoint (ramp
generator output)
SL (0.1) RPM Read
202 Speed actual value SL (0.1) RPM Read
Explanation of digital I/O in NCK:
Function
identifier
Explanation
Max. permissible
number
Parameter 1 Parameter 2 Parameter 3 Parameter 4
01
Digital I/O in
NCK
32
Data group
21H
Data type
Signal
number
Axis/spindle
number
The digital I/O peripherals (e.g. 6 digital inputs of Central Service Board or maximum 2 mixed
I/O modules with 2 input and output bytes each) can also be used to a limited extent in the
NCK area.
The status of these inputs/outputs can be read from the PLC by means of the high-speed data
channels. However, the outputs cannot be written from the PLC!
_______
1) Data format SL.. Signed Long (32 bit)
2) Unit UMS ... Units Machine system
(0, 1) RPM ... Revolutions / minute, load-related
0.1 rpm when MD bit 520* bit 3 =1
1 rpm when MD bit 520* bit 3 = 0
3) Load speed: 400000H corresponds to 0.01% of the max. load speed
12–292
© Siemens AG 1992 All Rights Reserved 6FC5197- AA50
SINUMERIK 840C (IA)
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