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E3X-DRT21-S
User’s Manual
Section 3
DeviceNet Remote I/O Communications
DeviceNet Remote I/O Communications
Allocating to Master
Data of E3X-DRT21-S is stored in the IN area of the DeviceNet master.
Select one of the following three modes using the DIP switch:
In addition, a connection type can be set by using the Configurator. The Communication
Unit supports Bit-Strobe, Poll, COS, and Cyclic.
“DeviceNet Connection Settings” on p. 88
■
Remote I/O Communications 1CH Mode (SW1=OFF, SW2=OFF)
Up to 13 sensors can be connected. The IN area occupies 1CH of the master. Unit
numbers of sensors are automatically assigned to the units from unit number 1 starting
from the communication unit side (left).
• Communicating with Sensor:
When the communication with a sensor is established, it is turned ON.
• Sensor communications error:
When the registered number of connected sensors doesn’t match the number of sensors
that can be communicated, or when communications with a sensor fail after the
connection with the sensor is established, it is turned ON.
• Communicating with the Mobile Console:
When the connection with the Mobile Console is established, it is turned ON.
Once the Mobile Console is connected, either Explicit message communications or
setting/monitoring operations from the Configurator cannot be performed.
SW1
SW2
Operating Mode Settings
Number of Sensors
that Can Be Connected
MODE0 MODE1
OFF
OFF
Remote I/O communications 1CH mode
Max. 13
ON
OFF
Remote I/O communications 2CH mode
Max. 16
OFF
ON
Remote I/O communications 2CH + detection level monitor mode
Max. 16
ON
ON
Cannot be set
-
Bit
Description
Bit
Description
00
Unit No. 1 ON/OFF output data
08
Unit No. 9 ON/OFF output data
01
Unit No. 2 ON/OFF output data
09
Unit No. 10 ON/OFF output data
02
Unit No. 3 ON/OFF output data
10
Unit No. 11 ON/OFF output data
03
Unit No. 4 ON/OFF output data
11
Unit No. 12 ON/OFF output data
04
Unit No. 5 ON/OFF output data
12
Unit No. 13 ON/OFF output data
05
Unit No. 6 ON/OFF output data
13
Communicating with the Mobile Console
06
Unit No. 7 ON/OFF output data
14
Sensor communications error
07
Unit No. 8 ON/OFF output data
15
Communicating with Sensor