Siemens SINAMICS G130 Operating Instructions Manual page 218

Operation
6.6 Communication according to PROFIdrive
Properties of the controller, supervisor and drive units
Table 6- 6
As bus node
Sending messages
Receiving messages
Communication services
Four communication services are defined in the PROFIdrive profile:
● Cyclic data exchange via a cyclic data channel
Motion control systems require cyclically updated data in operation for open-loop and
closed-loop control tasks. This data must be sent to the drive units in the form of
setpoints or transmitted from the drive units in the form of actual values, via the
communications system. Transfer of this data is usually time-critical.
● Acyclic data exchange via an acyclic data channel
An acyclic parameter channel for exchanging parameters between the control/supervisor
and drive units is additionally available. Access to this data is not time-critical.
● Alarm channel
Alarms are output on an event-driven basis, and show the occurrence and expiry of error
states.
● Isochronous mode
Interface IF1 and IF2
The Control Unit can communicate via two different interfaces (IF1 and IF2).
Table 6- 7
PROFIdrive and SIEMENS
telegram
Free telegram
Isochronous mode
Drive object types
Can be used for
Cyclic operation
PROFIsafe
218
Properties of the Controller, Supervisor, and Drive Unit
Properties
Active
Permitted without external re-
quest
Possible without any restrictions Only receive and acknowledge
Properties of IF1 and IF2
IF1
Yes
Yes
Yes
All
PROFINET IO, PROFIBUS DP,
SINAMICS Link, PN Gate,
Ethernet/IP
Yes
Yes
Controller Supervisor
Operating Instructions, 07/2016, A5E00331449A
Drive unit
Passive
Only possible on request by the
controller
permitted
IF2
No
Yes
Yes
All
PROFINET IO, PROFIBUS DP,
CANopen, SINAMICS Link,
PN Gate, Ethernet/IP
Yes
Yes
Inverter chassis units