Omron E5 D Series, Communications Manual

Page: 196 / 210

6 Programless Communications
6 - 88 E5@D Digital Temperature Controllers Communications Manual (H225)
Set the terminating resistance switch on the front panel of the KV-L21V to TERM and wire the E5CD
Controllers as shown below.
Note: 1 Use a terminating resistance of at least 54 Ω .
2 The maximum transmission distance is 500 m.
3 For wiring methods, refer to
2-6 Connecting External Devices
in the
KV-L21V Serial Communication Unit
User’s Manual
(254GB).
Set up communications on the KV-L21V to enable communicating with the E5CD Controllers.
The procedure to use when you create a new project is given below. If you use an existing project, set
up communications after you read the data from the PLC.
(1) Connect the computer to the KV-series CPU Module with a USB cable and then start
KV STUDIO.
(2) Select
Communication Setup
−
Communication Settings
from the Monitor/Simulator
Menu on the KV STUDIO.
When the communications setup is displayed, select
USB
for the computer
communications port and click the OK Button.
(3) Select
New Project
from the File Menu, specify the KV-700, enter a project name, and
click the OK Button.
(4) A Unit Configuration Confirmation Dialog Box will be displayed. Click
Read Unit
Configuration
.
(5) The Unit Editor will be displayed. Double-click the KV-L21V and click the
Unit Setup
(2)
Tab. Make the following settings for port 2 and click the OK Button. Use the
default values for other settings.
•
Operating mode: Protocol mode 4
• Interface: RS-485 (2-wire)
• Baud rate: 115,200 bps
• Data bits: 7 bits
• Stop bits: 2 bits
• Checksum: Use
(6) Select
PLC Transfer
from the Monitor/Simulator Menu to write the settings.
(7) The Program Transfer Dialog Box will be displayed. Click the Execute Button. The
settings will be written.
This completes setting up the PLC. Operation will be checked next, so leave the KV STU-
DIO running.
6-11-2 Wiring
6-11-3 PLC Setup
Shield Shield Shield
13
14
E5CD
No.0
E5CD
No.1
E5CD
No.2
B(+)
S/R(
−
SG S/R(+)
A(
−
)
13
14
B(+)
A(
−
)
13
14
B(+)
A(
−
)
120 Ω (1/2 W)
terminating resistance