The on-line command processing mode is active if the controller is
provided with a serial interface and the parameter P00 = 2 has been set
or if the controller is provided with a field bus interface. In this mode,
single movement commands and other commands are transmitted to the
controller and executed immediately. A comprehensive command set for
programming is available for on-line command processing. The signal
inputs and outputs of the controller can be freely used in this mode. This
operating mode is described in a separate documentation for each
appropriate interface.
On-line command processing
If the controller is provided with a serial interface (RS 232 or RS 485),
either position processing mode or on-line command processing mode
can be selected via the front panel (parameter P00).
Communication via
the serial interface
Several controllers with RS 485 interfaces can be addressed from a
master control unit or a PC. The network address of the controller is set
on the front panel with the P60 parameter. The master controller must
use a polling command to specify the unit with which it wants to com-
municate (see separate documentation).
RS 485 network
A standardized field bus interface, e.g. Interbus-S (fig. 1-4) or Profibus-
DP, can be used for transmitting movement and other commands from
a master unit to the controller for execution; see on-line command
processing.
Communication via a field bus interface is described in a separate
documentation for each appropriate interface.
Communication via
field bus network
Interbus-S
master
Interbus-S
slave
Interbus-S
slave
or
Movement
and other
commands
PLC
MP 927
MP 927
256 slaves max.
M
20
_
+
21
OPT.1
22
OPT.2
23
Signal/
24 V DC
24
V
W
U
L
N
M
3-phase
stepping motor
3-phase
stepping motor
20
_
+
21
OPT.1
22
OPT.2
23
Signal/
24 V DC
24
V
W
U
L
N
PC
Signal
inputs/outputs
Signal
inputs/outputs
Fig. 1-4 Interbus-S network
configuration
General description
WDP3-01X Ident. no.: 00441109760
1-7
