6
System Configuration
Section 1-2
The equipment and models which can be used in the system configuration
are shown in the following table.
Note The MC Unit must be used with a Servo Driver with software version 14 or
later. The MC Unit cannot be used with software version 8.
DeviceNet Configuration
(MCW151-DRT-E only)
A DeviceNet system can be constructed in two ways: fixed allocation or free
allocation.
Fixed Allocation
A DeviceNet system can be constructed easily without the Configurator. With
fixed allocation, predetermined words are allocated to each node for the
Slave’s I/O.
An OMRON Master must be used in order to perform fixed allocation. More-
over, with fixed allocation only one Master Unit can be used in a DeviceNet
network and only one Master Unit may be mounted to a PC.
Free Allocation
The Configurator can be used to freely allocate the words used by each
Slave. With free allocation, more than one Master Unit can be connected in a
DeviceNet network and each Master’s Slave I/O can be set independently.
More than one Master Unit may be mounted to each PC and those Masters
can be used independently. Furthermore, other companies’ Masters can be
Device
Model
Motion Control Unit
R88A-MCW151-E
R88A-MCW151-DRT-E
Servo Driver (see note)
R88D-WT
❏
Servomotor
R88M-W
❏
Control Devices (using
Host Link)
Programmable Terminals
CPU Units
Personal Computer (for
Motion Perfect)
IBM Personal Computer or 100% compatible
Motion Perfect
Version 2.0 or later
CPU Unit
Master Unit
Remote I/O communications
Slave
Slave
MC Unit