Chapter 1 On Installing type2 light Controllers
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1.1 Functions and Characteristics of the Controller
Unified controller nv series type2 light controllers inherit functions of the conventional
unified controller V series and have the following features:
■ High reliability has been achieved by the redundant structure of modules and
application of ECC circuit of the internal memory.
You can build a duplexed system having two sets of the power module, controller
module and serial bus interface module. Furthermore, you can not only detect errors but
also correct them by applying ECC circuit to the internal memory of each module.
■
It is equipped with “TC-net I/O,” a fast serial I/O system.
I/O data can be quickly collected at a high transmission rate of 100 Mbps, and the
minimum time of collection cycle of 100 μs.
■
High reliability has been achieved with redundant supervisory and control
network.
The supervisory and control network employs Ethernet whose transmission rate is100
Mbps and can further duplex the transmission channel.
■ The inheritance is secured by three basic elements of the supervisory control
system.
・
nV-Tool : It conforms to the international standard
IEC 61131-3 employed by conventional
devices and allows you to customize symbols
to users’ preference for easier operation.
・
Supervisory and control network : It uses the open network Ethernet of a
transmission rate of 100 Mbps.
・
Operator station : It allows you to connect to the conventional
model “OIS-DS” and inherits the conventional
operability. OIS-DS allows you to add functions
as an OPC server.
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