Timeouts And Other Errors - Siemens SINAMICS CU240S DP-F Operating Instructions Manual

Communication
6.6 Communication via USS
6.6.6

Timeouts and other errors

Telegram Timeouts
For the timeout monitoring, the character run time is important:
Table 6-41
Baudrate in bit/s
9600
19200
38400
115200
The following figure shows the meaning of the "residual run time":
Figure 6-19
The character delay time can be zero and must be smaller than the start delay!
The following figure shows the various delays and transmission times:
: : :
Figure 6-20
182
Character run time
Transfer time per character (= 11 bit) Transfer time per bit
1.146 ms
0.573 ms
0.286 ms
0.059 ms
Residual run time
(compressed telegram)
Residual Run Time and Character Delay Time
: : :
Start Delay and Response Delay
104.170 us
52.084 us
26.042 us
5.340 us
50 % of the compressed
: : :
: : :
Operating Instructions, 07/2008 - FW 3.2, A5E00766042B AD
Character run time
1.146 ms
0.573 ms
0.286 ms
0.059 ms
: : :
Control Units CU240S
: : :