2 Overview
15-04-2016 9 7000.05052
2.2
Pre-requirement for communication
FAULHABER drives are supplied with the node number 0xFF (unconfigured) and a RS232
transmission rate of 9600 bits/s. For operation over an RS232 or USB interface, a unique
node number must be assigned and in addition for RS232 a suitable Baud rate set at
commissioning (see ).
The Motion Controller uses the same communications protocol for USB and RS232.
If a change is made to the node number or Baud rate, the response must be made from
the old node number or at the old Baud rate.
2.2.1
Operation over the RS232 interface
2.2.1.1
Operation of an individual Motion Controller
1.
Establish a connection with a host interface (typically a PC or PLC).
Connect the Tx data cable on the host side with the Rx pin of the drive
Connect the Rx data cable on the host side with the Tx pin of the drive (null
modem cable)
Alternatively a USB/RS232 converter can be used at the PC side.
2.
Configure the host interface to match the drive settings (see chap. 5, p. 36):
The same Baud rate
8 data bits, no parity, 1 stop bit, no flow control
3.
Switch on the Motion Controller.
Communication will be established. The drive will report a boot-up message at the
last Baud rate setting.
Fig. 2: Wiring between PC/controller and a drive
PC or
High Level Control
Node 1
TxD
RxD
RxD
TxD
GND
GND
(D-Sub9 Pin 2)
(D-Sub9 Pin 3)
(D-Sub9 Pin 5)