Communication via PROFIBUS
Cyclic communication
4-102
E Siemens AG, 2004. All rights reserved
SINAMICS S120 Installation and Start-Up Manual, 12/04 Edition
4.3.3 Description of status words and actual values
Note
This chapter describes the assignment and meaning of the process data in
SINAMICS interface mode (p2038 = 0).
The reference parameter is also specified for the relevant process data. The
process data is generally normalized in accordance with parameters p2000 to
r2004. A temperature of 100 °C = 100% and an electrical angle of 90° also =
100%. For more information, see Section 7.4.
Overview of status words and actual values
Table 4-7 Overview of status words and actual values
Abbrevia-
tion
Name Signal no. Data type
1)
Comments
STW1 Status word 1 2 U16 r2089[0]
(bit serial)
2)
STW2 Status word 2 4 U16 r2089[1]
(bit serial)
2)
NACT_A Speed setpoint A (16 bit) 6 I16 r0063
NACT_B Speed setpoint B (32 bit) 8 I32 r0063
G1_STW Encoder 1 status word 10 U16 r0481[0]
G1_XACT1 Encoder 1 actual position 1 11 U32 r0482[0]
G1_XACT2 Encoder 1 actual position 2 12 U32 r0483[0]
G2_STW Encoder 2 status word 14 U16 r0481[1]
G2_XACT1 Encoder 2 actual position 1 15 U32 r0482[1]
G2_XACT2 Encoder 2 actual position 2 16 U32 r0483[1]
G3_STW Encoder 3 status word 18 U16 r0481[2]
G3_XACT1 Encoder 3 actual position 1 19 U32 r0482[2]
G3_XACT2 Encoder 3 actual position 2 20 U32 r0483[2]
MSGW Message word 102 U16 r2089[2] (bit
serial)
2)
A_STW1 Status word for A_INFEED 321 U16 r899, r2139
(bit serial)
2)
1) Data type to PROFIdrive Profile V3.1:
I16 = Integer16, I32 = Integer32, U16 = Unsigned16, U32 = Unsigned32
2) Bit-serial interconnection: see the following pages, r2089 via binector/connector converter