27
E3NW-CRT
User’s Manual
Sec
tion 2
In
st
al
la
ti
on an
d Con
n
ec
ti
ons
Section 2
Connecting Sensor Amplifier Units
Number of Connectable Sensor Amplifier Units
You can connect the Sensor Communications Unit to up to 16 Sensor Amplifier Units,
including any Sensor Amplifier Units connected to Distributed Sensor Units. The number
of connectable Sensor Amplifier Units also depends on the settings of the Sensor
Communications Unit.
Up to 10 Sensor Amplifier Units can be connected to a Distributed Sensor Unit.
The number of connectable Amplifier Units is not affected by the types of Amplifier Units.
The following are some connection examples.
Example 1: Communications Unit Only
Type
Setting
Number of
connectable
Sensors
Features
Unit with CompoNet
Communications
(E3NW-CRT)
I/O Mode 1
15 max.
Two input words, outputs for 15 Sensors (with two
outputs each for a total of 30 outputs), and two
status bits are allocated as I/O.
Explicit messages are used to change settings and
perform tuning. This Sensor Amplifier Unit is best
for connections to an OMRON NJ-series, CJ-
series, or CS-series master.
I/O Mode 2
16 max.
This mode allocates six input words and six output
words.
It is best suited for gateways and other products
that do not support explicit messages. You can only
change settings and perform tuning through control
inputs and outputs assigned in the I/O area.
Unit 1
Unit numbers are in ascending order from the left.
DIN Track
Sensor
Communication Unit
Sensor Amplifier Unit
Sensor Heads
Connectors
Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit
8
Unit 9
Unit 10
Unit 11
Unit 12
Unit 13
Unit 14
Unit 15
Unit 16
