Siemens Sinamics S110 Function Manual page 461

Setting criteria for times
● Cycle (T
● T
● A tool is available for setting and optimization purposes (e.g. HWConfig in SIMATIC S7).
Minimum times for reserves
Table 9- 37
Basic load
Per slave
Per byte of user data
One additional class 2 master
Drive functions
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
)
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 the 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
The following must be noted:
– Configuring reserves allows the following:
Class 2 masters can be connected
Non-cyclic communication
Minimum times for reserves
Data
O
and T to be as short as possible reduces the dead time in the
I O
Communication PROFIBUS DP
9.2 Communication via PROFIBUS DP
Time required [µs]
300
20
1,5
500
461