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29
E3X-DRT21-S
User’s Manual
Sect
ion 3
Dev
ic
e
Net
Co
m
m
u
n
ic
at
io
n Se
tt
ings
Section 3
Overview of DeviceNet Communication Type
Overview of Communication Functions of DeviceNet
Communication Type
●
Remote I/O Communications
The Communication Unit, E3X-DRT21-S, can allocate sensor ON/OFF output data, status,
and the detection level to the master IN area.
Communication
Mode
Occupied CH
Communication Data
Number of Sensors
That Can Be
Connected
Condition
Remote I/O
Communications
1CH mode
IN Area
1CH
Sending the following data to the master unit:
- ON/OFF output data for maximum 13 units
Max. 13
-
Remote I/O
Communications
2CH mode
IN Area
2CH
Sending the following data to the master unit:
- ON/OFF output data for maximum 16 units
- Number of sensors that can be
communicated with
- Number of connected Sensors
Max. 16
Remote I/O
Communicati-
on 2CH +
Detection level
Monitor mode
IN Area 2CH +
Connected
Sensors
Unit CH
Sending the following data to the master unit:
- ON/OFF output data for maximum 16 units
- Number of sensors that can be
communicated with
- Number of connected Sensors
- Detection level of maximum 16 sensors
Max. 16
Not allowed to
monitor the
detection level
when connected
to Mobile
Console.
Example: For using the 1CH mode
Unit
No.
1
Unit
No.
2
Unit
No.
13
Remote I/O
Communications IN Area
Communication Unit
DeviceNet
Communication Type
E3X-DRT21-S
DeviceNet Unit
CPU Unit
PLC
Unit No. 1 ON/OFF output data
Unit No. 2 ON/OFF output data
Unit No. 13 ON/OFF output data
Communicating with Sensor
DeviceNet
●
Remote I/O
Communications
Sensor Head
Amplifier Unit