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How to Use the Node Terminal Block
Appendix 2
217
Appendix
2
How to Use the Node Terminal Block
Application of the Node Terminal Block
The Node Terminal Block is used in the following cases:
1, 2, 3…
1.
To use CX-Process Monitor or to read data for monitoring the Loop Control Unit from the
host computer
2.
To write data to the Loop Control Unit from the host computer
3.
To send and receive data between node terminals with a Loop Control Unit at another
node PC on the Controller Link network
How to Use the Node Terminal Block
1, 2, 3…
1.
To use CX-Process Monitor (or read data for monitoring the Loop Control Unit from
the host computer)
The Loop Control Unit uses the following Send to Computer function blocks to send data to
the Area to send to computer (data area for monitor) in Data Memory (on CPU Unit) for Node
Terminals.
Function blocks used: DO to Computer (Block Model 401)
AO to Computer (Block Model 402)
1-Block Send Terminal to Computer (Block Model 403)
4-Block Send Terminal to Computer (Block Model 404)
The host computer (including CX-Process Monitor) reads data from the Area to send to
computer.
CPU Unit
Area to send to
computer
Loop Control Unit
Communications
to Computer
block
Data Memory for
Node Terminals
Computer on which
CX-Process Monitor
is running
Read data
At each
operation
cycle