Omron E5ZN-DRT, Руководство по эксплуатации

Страница: 51 / 162

36
Allocation Method Overview Section 4-1
4-1 Allocation Method Overview
This section provides an overview of allocation methods for performing
remote I/O communications from the master through the DeviceNet Commu-
nications Unit.
4-1-1 Overview
The DeviceNet Communications Unit can be used to allocate data, such as
the Temperature Controller variable area, in the master’s I/O memory.
The DeviceNet Communications Unit can be used to select data from the
E5ZN Temperature Controllers and DeviceNet Communications Unit and
specify the allocation destination.
Data is automatically exchanged between the master and DeviceNet Commu-
nications Unit, allowing Temperature Controllers to be controlled and moni-
tored from the master without requiring special communications
programming.
Use either of the following two methods to allocate DeviceNet Communica-
tions Unit I/O in the master.
DeviceNet Master
CPU Unit
DeviceNet
Allocated data
IN Area
OUT Area
Master CPU Unit I/O memory
IN Area
OUT Area
E5ZN-DRT
DeviceNet
Communications
E5ZN
Temperature
Controllers
Unit
0 Unit
1 Unit
15
Process
values, etc.
Set points,
etc.
Process
values, etc.
Set points,
etc.