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6 Programless Communications
6-11-2 Wiring
Set the terminating resistance switch on the front panel of the KV-L21V to TERM and wire the E5CD
Controllers as shown below.
−
SG
S/R(
S/R(+)
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).
6-11-3 PLC Setup
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
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 - 88
B(+)
Shield
Shield
13
14
−
A(
)
E5CD
No.0
−
Communication Settings from the Monitor/Simulator
E5@D Digital Temperature Controllers Communications Manual (H225)
120 Ω (1/2 W)
B(+)
B(+)
Shield
terminating resistance
13
13
14
14
−
−
A(
)
A(
)
E5CD
E5CD
No.1
No.2
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