CV500BC051 Omron, CV500BC051 Datasheet - Page 123

• Manufacturer Part Number: CV500BC051
• Description: Programmable Logic Controller
• Manufacturer: Omron

Specifications of CV500BC051

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

4-3-4
98
C200HX/HG/HE Controller Link Units
Terminating Resistance
Note
Note
1. Do not use the same operating level for more than one Unit mounted to the
2. Operating levels are used by the CPU Unit to distinguish different Commu-
Turn ON the terminating resistance using the switch on the bottom of the Unit
for the Units of both ends of the Network. The terminating resistance is
required at both ends of a Network to absorb unnecessary signals and reduce
noise.
The Controller Link Unit has built-in terminating resistance, which can be con-
nected simply by turning ON the slide switch.
1. Always turn OFF the PLC’s power before setting the terminating resistance
2. Turn ON the switch to connect terminating resistance at the nodes at both
3. The TER LED indicator will light when the terminating resistance switch is
OFF (factory default)
ON
OFF (factory default)
ON
same PLC. An error will occur is the same operating level is set twice.
nications Units. Each node can have a different operating level, i.e., it is not
necessary to use the same operating level for all nodes in the same Net-
work.
switch.
ends of the Network and turn OFF the switch at all other nodes. Normal
communication cannot be performed in the Network unless all the nodes
are set properly.
set to ON.
Operating level 1
Operating level 0
Pin 4
Bottom switch
Note
It is not necessary to use the same operating
level for all nodes in the same Network.
Operating level 1
Operating level 0
Operating level
ON
Not connected.
Connected.
Operating level 0
Terminating resistance
Set all the nodes on the
Network to either Operat-
ing level.
Operating level 1
Node
Section 4-3