3. Product description
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Festo.P.BE-CMMS-ST-HW-EN 0903b
If automatic firmware download (DIP switch 8 = 1) is activated or there is no valid
firmware in the controller, a check is performed at initialisation whether an SD memory
card is inserted, and if so, initialises it. If there is a firmware file on the card, it is checked
first (device type, checksum). If no fault is found, the firmware is transferred from the card
to the controller and saved in the FLASH program.
If the Load automatic parameter set is activated via the commissioning software, the
system checks whether a card is inserted when the firmware is started and it is initialised
if applicable.
3.4
Field bus interface
With CMMS-ST, different field busses can be used. By default, the CAN bus is permanently
integrated in the controller with the CMMS-ST. Optionally, the PROFIBUS or DeviceNet can
be used via plug-in modules. But only one field bus can be active at any given time.
For all field busses, the Festo Profile for Handling and Positioning (FHPP) has been
implemented as the communication protocol. Additionally, for the CAN bus, the
communication protocol based on the CANopen profile in accordance with the CiA Draft
Standard DS301 and the drive profile in accordance with the CiA Draft Standard Proposal
DSP402 have been implemented.
Independent of the field bus, a factor group can be used so that application data can be
transferred into user-specific units.
Required I/O connection for field bus control
The connection plan shows the switch position in the active operating state.
*) The limit switches are set by default to opener (configuration over FCT)