Acyclic Data Transmission - Siemens SINAMICS G120 Operating Instructions Manual

Commissioning (software)
5.9 Commissioning with PROFIBUS DP
Status word 2 (ZSW2)
Status word 2 has the following default assignment: This can be modified using BICO.
Table 5-34 Assignment status word 2 (for VIK/NAMUR not defined)
Bit Value Meaning
0 1 DC Braking Active
1 1 n_act < P2167
2 1 n_act ≧ P1080
3 1 i_act ≧ P2170
4 1 n_act > P2155
5 1 n_act ≦ P2155
6 1 Speed Setpoint Reached
7 1 DC Link Voltage < P2172
8 1 DC Link Voltage ≧ P2172
9 1 Speed Ramp Finished
10 1 Techn. Controller Output ≦ P2292
11 1 Techn. Controller Output > P2291
12 1 Vdc_max Controller
13 1 Kinetic Buffering and Flexible Response --
14 1 Not used
15 1 Not used
5.9.9

Acyclic data transmission

Extended PROFIBUS DP functionality (DPV1)
The PROFIBUS DP extensions DPV1 include the definition of an acyclic data exchange
which can take place in parallel to cyclical data transmissions.
Acyclic data transfer mode allows:
● Large quantities of user data (up to 240 bytes) to be exchanged
● Simultaneous accessing by other PROFIBUS masters (class 2 master, e.g. start-up tool).
5-92
Description
DC current brake active
Drive inverter frequency < Shutdown limit
Actual frequency > min. frequency
Current ≥ Limit
Actual frequency > Reference frequency
Actual frequency < Reference frequency
Actual frequency ≥ Setpoint
Voltage < Threshold value
Voltage > Threshold value
--
PI frequency < Threshold value
PI saturation
--
--
--
Operating Instructions, 11/2006, A5E00766042B AA
Control Units CU240S