Commissioning (software)
5.9 Commissioning with PROFIBUS DP
Control Units CU240S
5-92 Operating Instructions, 11/2006, A5E00766042B AA
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 Description
0 1 DC Braking Active DC current brake active
1 1 n_act < P2167 Drive inverter frequency < Shutdown limit
2 1 n_act ≧ P1080 Actual frequency > min. frequency
3 1 i_act ≧ P2170 Current ≥ Limit
4 1 n_act > P2155 Actual frequency > Reference frequency
5 1 n_act ≦ P2155 Actual frequency < Reference frequency
6 1 Speed Setpoint Reached Actual frequency ≥ Setpoint
7 1 DC Link Voltage < P2172 Voltage < Threshold value
8 1 DC Link Voltage ≧ P2172 Voltage > Threshold value
9 1 Speed Ramp Finished --
10 1 Techn. Controller Output ≦ P2292 PI frequency < Threshold value
11 1 Techn. Controller Output > P2291 PI saturation
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).
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