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3. Product description
36
Festo.P.BE-CMMS-ST-G2-HW-EN
1008NH
Setting the operating mode
Due to a necessary synchronisation of internal processes, the change of operation mode
can require some cycle times of the controller. We therefore recommend that you always
verify and wait for reception of the desired operation mode.
Operating mode
Syntax
Response
Regulating torque
OW:0030:00000004
Speed adjustment
OW:0030:00000008
Positioning
OW:0030:00000002
OK! or OW:EEEEEEEE
Table
3.12 Operating mode
Faulty return values can be called up due to invalid values that do not come from the
above-named group. The current operation mode can be read by using the “OR”
command.
Control via RS-485
Note
Before activating the RS-485 interface, please make sure that you
are using a completely wired null modem cable. All pins of the
cable must be occupied according to the following specification
(also see chapter
Pin Brief
description
Name Signal
direction
Description
1 DCD
Data
carrier
detect
Transfer device -->
end device
Data carrier signal was recorded by
transfer device.
2
RxD
Receive (x) Data
Transfer device -->
end device
Line at the end device that receives a
data bit from the transfer device.
3
TxD
Transmit (x) Data
End device -->
Transfer device
Line at the end device that sends a data
bit to the transfer device.
4 DTR
Data
terminal
ready
End device -->
Transfer device
End device is ready for use.
5
GND
Ground (earth)
None
Reference potential at 0 V.
6
DSR
Data set ready
Transfer device -->
end device
Transfer device is ready for use.
7
RTS
Request to send
End device -->
Transfer device
End device displays that the remote
station should send (send request).
8
CTS
Clear to send
Transfer device -->
end device
Transfer device shows reception
readiness (send permission).