Siemens Sinamics S110 Function Manual page 602

Communication
9.3 Communication via PROFIBUS DP
Setting criteria for times
● Cycle (T
● T
● A tool can be used for settings and optimization (e.g. HW Config in SIMATIC S7).
Minimum times for reserves
Table 9- 38
Base load
Per slave
Per byte of user data
One additional class 2 master
600
)
DP
– T must be set to the same value for all bus nodes.
DP
– T > T and T > T
DP DX DP
T is thus large enough to enable communication with all bus nodes.
DP
NOTICE
After T has been changed on the PROFIBUS master, the drive system must be
DP
switched on (POWER ON) or parameter p0972 = 1 (reset drive unit) must be set.
and T
I O
– Setting the times in T
position control loop.
– T > T + T
O DX Omin
Minimum times for reserves
Data
O
and T to be as short as possible reduces the dead time in the
I O
Time required [µs]
300
20
1.5
500
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
Function Manual