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How to Use the Node Terminal Block
Note 2
In addition to connection mode 2) above, the CPU Unit Terminal block or Expanded CPU Unit
Terminal block can be used to read and write the Data Link area after building a regular
Controller Link Data Link as a method of connecting the Loop Control Unit to another node PC.
However, the Data Link in connection mode 1) above is required for monitoring the Loop Control
Unit on CX-Process Monitor.
Example of Connection mode 2) Two PCs and one computer are connected by Controller Link Data
Controller Link unit
Leading address S →
Leading address S+24 →
Leading address S+436 →
Leading address S+536 →
Leading address S+636 →
Node: 01, Link start word: S
Node
Send/
Receive
01
Send
02
Receive
32
Receive
OFF
Link
Loop Control Unit
Controller Link
Support Board
PC#1
Data Memory (D) for
Node Terminal
For LCU number
8 words
0
System
For LCU number
information
8 words
1
#1
For LCU number
8 words
2
512 words
Area to send to computer
(16 words x 32
#1
blocks)
P+536 →
Area to send to all nodes
#1
P+636
Area (dummy area) to
100 words
receive from all nodes #1
(2 words x 50
blocks)
Area (dummy area) to
100 words
receive from all nodes #2
(2 words x 50
blocks)
Leading
Number
Offset
word of
of words
self
node
S
636 words
S+636
200 words
436 words
Node: 32, Link start word: P
Node
01
32
02
Computer on which
CX-Process Monitor is
running
Controller Link network
Computer #32
Leading address
P→
For LCU number
0
System
For LCU number
24
information
words
1
#1
For LCU number
2
Leading address T+24 →
Area to send to computer
#1
Area to send to all nodes
#1
For LCU number
→
System
0
information
For LCU number
(not used)
1
For LCU number
2
Area to send to computer
#2
Area to send to all nodes
#2
Send/
Leading
Number
Receive
word of self
of words
node
Receive
P
636 words
Send OFF
Receive
P+636 words
636 words
Loop Control Unit
Controller Link unit
PC#2
Data Memory (D) for
Node Terminal
Leading address T →
For LCU number
System
For LCU number
information
#2
For LCU number
Area to send to computer
#2
Leading address
Dummy send area #1
T+436 →
received by this area
Leading address
T+536 →
Area to send to all nodes
#2
Leading address
T+636 →
Receive from Area to
receive from all nodes #2
Node: 02, Link start word: T
Node
Send/
Leading
Number
Receive
word of
of words
self
node
01
Receive
T+636
100 words
02
Send
T
636 words
32
Receive
OFF
Offset
0 word
0 word
Appendix 2
0
1
2
Offset
536 words
229
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