Omron EJ1 - 07-2008, Operation Manual

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Setup Procedure Section 2-1
2-1 Setup Procedure
Use the following procedure to prepare the DeviceNet Communications Unit
for use. Refer to the reference pages provided for detailed information on
each step.
Step Item Details Reference
page
1 Connect the DeviceNet Communi-
cations Unit and the Temperature
Controllers. Connect the DeviceNet Communications Unit to the
Temperature Controllers. Attach the seal supplied with
the End Unit to the hole on the side of the DeviceNet
Communications Unit. 28
2 Mount the connected DeviceNet
Communications Unit and the Tem-
perature Controllers to the DIN
Rail. Mount the joined DeviceNet Communications Unit and
the Temperature Controllers to the DIN Rail. To ensure
secure mounting, always attach an End Plate to each
end. 28
3 Connect the RS-485 communica-
tions cable (only for distributed
placement). When using a multiblock configuration for the Tempera-
ture Controllers connected to the DeviceNet Communi-
cations Unit, connect the RS-485 communications cable
to port B on the End Unit for each block. 8
4 Connect the power supply Connect a 24-VDC power supply to the power supply ter-
minals of the End Unit.
Note Do not turn ON the power supply at this time. This
power supply is used as the internal circuit power
supply of the Temperature Controllers and the
communications power supply between the
DeviceNet Communications Unit and the Temper-
ature Controllers.
---
5 Wire the Temperature Controllers. Wire the Temperature Controller temperature inputs and
control outputs.
Note Do not turn ON the power supply at this time.
---
6 Set the communications unit num-
bers of the Temperature Control-
lers. Set the communications unit number of each Tempera-
ture Controllers using the rotary switch and DIP switch
on the Temperature Controller. Set a unique communica-
tions unit number for each Temperature Controller. ---
7 Set the DeviceNet node address. Set the DeviceNet node address (0 to 63) of the
DeviceNet Communications Unit. Set the ten’s digit using
the
×
10 rotary switch, and the one’s digit using the
×
1
rotary switch. Set a unique node address for each slave
connected to the same master.
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