Siemens sinumerik 840D sl Function Manual page 188

Key to Fig. above:
• T
• T
• T
• T
• T
• T
• GC:
• R:
• Dx:
• MSG:
• RES:
• ①:
• ②:
Special functions: Cycle Times (G3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0
MAPC:
Master application cycle: NC position control cycle for SINUMERIK 840Di always applies
for: T = T
MAPC DP
DP:
DP cycle time: DP cycle time
DX:
Data exchange time: Total transfer time for all DP slaves
M:
Master time: Offset of the start time for NC position control
I:
Input time: Time of actual value sensing
O:
Output time: time of setpoint activation
Global control message frame (broadcast message frame) for cyclic synchronization of
the equidistance between the DP master and DP slaves
Computation time for speed or position controller
Useful data exchange between the DP master and DP slaves
Acyclic services (e.g. DP/V1, pass token)
Reserve: "Active pause" until the isochronous (equidistant) cycle has expired
The actual values for the current DP cycle / position control cycle are transferred from the
DP slave drives to the NC position controller.
The setpoints computed by the NC position controller are transferred to the DP slave
drives
2.3 SINUMERIK 840Di with PROFIBUS DP
Detailed description
11