
Appendix
Communication interfaces
Control via CAN bus
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SW-HB 13.0002-EN EN 3.0
10.2
Communication interfaces
10.2.1
Control via CAN bus
Functions available
The 931E servo positioning controller uses the CANopen protocol according to
DS301 / DSP402.
The following operating modes specified in CANopen are supported:
ƒ
Torque control (profile torque mode)
ƒ
Speed control (profile velocity mode)
ƒ
Homing (homing mode)
ƒ
Positioning (profile position mode)
ƒ
Synchronous position selection (interpolated position mode)
The following access types are supported for data exchange:
Access type
Description
SDO
Service Data Object
Used for the standard parameterisation of the controller.
(Approx. 150 SDOs are supported.)
PDO
Process Data Object
Fast exchange of process data (e.g. actual speed) possible. (2
PDOs are supported.)
SYNC
Synchronisation Message
Synchronisation of several CAN nodes.
EMCY
Emergency Message
Transfer of error messages.
NMT
Network Management
Network service: E.g. all CAN nodes can be influenced at the same
time.
HEARTBEAT Error Control Protocol
The bus devices are monitored by means of regular messages.
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