Omron E5ZN-DRT, Руководство по эксплуатации

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Features and System Configuration Section 1-1
1-1 Features and System Configuration
1-1-1 Features
The DeviceNet Communications Unit enables a DeviceNet master to commu-
nicate with multiple E5ZN Temperature Controllers through the DeviceNet to
monitor their process values, write parameters, and control operation.
Using DeviceNet Functions
Simultaneously Managing
Multiple Temperature
Controllers from the
Master Up to 16 Temperature Controllers can be connected to a single DeviceNet
Communications Unit. The DeviceNet Communications Unit is connected to
the master as a DeviceNet slave. Up to 63 slaves can be connected to a sin-
gle master, so multiple DeviceNet Communications Units and other types of
slaves can be managed as part of the same system.
Remote I/O
Communications The master and DeviceNet Communications Units can share I/O by using
remote I/O communications. Data in the E5ZN Temperature Controllers, such
as process values (PVs) and set points (SPs), can be allocated for communi-
cations with the master to enable sending and receiving the allocated data via
remote I/O communications, without requiring special programming.
• Remote I/O Communications without a Configurator
Using the DeviceNet Communications Unit, basic Temperature Controller
data can be allocated for communications with the master, such as pro-
cess values (PVs) and set points (SPs), without requiring a Configurator.
This is called “simple I/O allocation.” Simple I/O allocation can be easily
set from the DIP switch on the rear of the DeviceNet Communications
Unit.
• User-set Data Allocations with a Configurator
The specific data required for communications with the master can also
be allocated by using I/O allocations from the Configurator.
Explicit Message
Communications By executing commands from the PLC, various operations can be performed,
including reading/writing specific parameters, such as reading process values
or writing set points, and performing operations using operation commands.
CompoWay/F communications commands can also be executed using explicit
message communications.
Setting, Monitoring, and
Operating the
Temperature Controller
from the Configurator The Configurator can be used to create the device parameters for the
DeviceNet Communications Unit, including settings for the DeviceNet Com-
munications Unit and setting for the Temperature Controllers. The Configura-
tor can then be used to download the parameters together to the DeviceNet
Communications Unit and Temperature Controllers. (See note.)
The Configurator can also be used to monitor Temperature Controller process
values, and execute operation commands for the Temperature Controllers.
The Configurator can be used to copy parameters between Temperature Con-
troller channels, allowing the initial parameters of Temperature Controllers
requiring the same or similar parameters to be easily set.
Automatically Detects
Baud Rate Previously, the baud rate had to be set for each slave, but the DeviceNet Com-
munications Unit automatically detects and matches the baud rate of the mas-
ter, so this setting is not required. (If the master's baud rate is changed, turn
OFF the communications power supply to the DeviceNet Communications
Unit and then turn it ON again.)