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51
Component Names and Functions
Section 3-1
3-1-3
C200HX/HG/HE Controller Link Unit
Wired Unit Indicators
1
Indicators
LED indicators that display the Unit and network status.
Node address switches
Two rotary switches. The node address of the Unit on the
Controller Link Network is set in 2-digit decimal.
Baud rate and operating level settings
A four-pin DIP switch. The following settings are made.
Pins 1, 2: Baud rate
Pin 3: Not used (leave set to OFF)
Pin 4: Operating level
Bus Connection Unit Connector
Connector used for connection to the CPU Unit.
Terminal block for the communications cable
Terminals to connect to the Controller Link Network communications
cable (twisted-pair cable).
Terminating resistance switch
(underneath the Unit)
A slide switch. Use this switch to set the terminating resistance to ON for
nodes at both ends of the Controller Link Network.
CLK21
NODE NO.
X10
1
X10
0
SW1
ON
BD
H
BD
L
SHLD
RUN
ERC
INS
SD
TER
ERH
M/A
LNK
RD
TER
SW
#0, #1
1
2
3
4
RSV
BAUD
RATE
0
1
ON
234
(Refer to page 96)
(Refer to page 97)
(Refer to page 61)
(Refer to page 68)
(Refer to page 98)
Name
Color
Status
Meaning
RUN
(operating)
Green
Lit
Unit operating normally.
Not lit
Unit error.
TER
(terminating
resistance)
Yellow
Lit
Terminating resistance switch ON.
Not lit
Terminating resistance switch OFF.
ERC (communica-
tions error)
Red
Lit
Communications error, node address
setting error (same address set twice), or
hardware error.
Not lit
Normal operation
ERH
(PLC error)
Red
Lit
PLC error, PLC interface error, EEPROM
error, or PLC model setting error.
Not lit
No error.
INS
(network
participation)
Yellow
Lit
Unit is participating (inserted) in the net-
work.
Not lit
Unit is not participating (inserted) in the
network.
M/A
(data link mode)
Yellow
Lit
Manual
(see note)
Note:
M/A is always not lit
when data links are not
active in the network.
Not lit
Automatic
LNK
(data link)
Yellow
Lit
Data links participating.
Flashing
Error in data link table.
Not lit
Not in a data link or data link inactive.
SD
(send)
Yellow
Lit
Data transmission.
Not lit
No data transmission.
Summary of Contents for C200HW-CLK21
Page 3: ...iv ...
Page 9: ...x ...
Page 12: ...xiii TABLE OF CONTENTS Index 367 Revision History 373 ...
Page 13: ...xiv ...
Page 19: ...xx ...
Page 57: ...32 Application Precautions Section 1 5 Example CX Programmer Response Timeout Setting ...
Page 69: ...44 Message Service Procedure Section 2 2 ...
Page 111: ...86 Constructing Networks with Repeater Units Section 3 4 ...
Page 154: ...129 Setting Data Links Section 5 2 Device Information Setting Data Link Tables ...
Page 261: ...236 Response Codes Section 6 7 ...
Page 297: ...272 Message Delay Times Section 8 4 ...
Page 353: ...328 Handling Precautions Section 9 6 ...
Page 364: ...339 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Page 365: ...340 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Page 369: ...344 Standard Models Appendix A ...
Page 391: ...366 Using the Relay Terminal Block Appendix C ...
Page 397: ...372 Index ...
Page 401: ...376 Revision History ...