Omron E5ZN-DRT, Руководство по эксплуатации

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4
Features and System Configuration Section 1-1
1-1-2 Overview of Unit Communications Functions
Remote I/O
Communications
DeviceNet Communications Unit data is shared with the master’s IN Area and
OUT Area through DeviceNet. Up to 100 words (200 bytes) each can be used
as the IN Area and OUT Area for the DeviceNet Communications Unit. (The
first two words (four bytes) of the OUT Area are always allocated as Output
Enable Bits).
The IN Area is allocated for data such as the communications status and the
process values of the Temperature Controller channels and the OUT Area is
allocated for the set points of the channels and other data.
When using a CS/CJ-series DeviceNet Unit as the master, the IN Area can be
divided into two areas. One is normally used for input data (such as Tempera-
ture Controller process values), and the other can be used for reading status
(such as Temperature Controller status). Even when the IN Area is divided
into two areas, however, the total number of words that can be used for the IN
Area is still 100 words (200 bytes).
DeviceNet Unit
DeviceNet
PLC
CPU Unit
Unit 0, Ch 1 SP
Unit 0, Ch 2 SP
Unit 1, Ch 1 SP
Unit 15, Ch 2 PV
Unit 0, Ch 1 PV
Unit 0, Ch 2 PV
Unit 1, Ch 1 PV
Unit 15, Ch 2 PV
Input Area
Unit 0 Unit 1
E5ZN Temperature Controllers
Remote I/O communications
output area
Remote I/O
communications
E5ZN-DRT
DeviceNet Communications Unit
Unit
15