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Advantech's
ADAM-4000 Remote I/O Solution Enables Modbus System Integration
Do
you know that 60% of the existing control systems worldwide support
Modbus network? The Modbus protocol has become a de facto standard
for data exchange and information communication in industrial network
applications targeting facility automation markets. In view of integrating
with SCADA/PLC/DCS systems as a complete remote I/O solution, Advantech
is introducing the ADAM-4000 Modbus series consisting of
ADAM-4017+ analog input, ADAM-4018+ T/C input, ADAM-4015 RTD input,
ADAM-4024 analog output, ADAM-4051/ADAM-4055 digital input/output,
and ADAM-4068 relay output modules.
Do
I Need Terminating Resistors?
Yes.
For ADAM I/O RS-485 serial networks terminating resistors are almost
always required even when it is only a host and one slave module.
The reason is simple. When the RS-485 network is quiescent, that
is, no communication is taking place, all RS-485 tri-state transmitter-receiver
devices are listening in a passive listening mode. In this mode
their impedance on the RS-485 network line is very high, by definition,
12 k-ohms.
ADAM-4570
Series Networking Notes
Some of the topics covered in this story include: Configuration
Traffic, Payload Traffic (the virtual COM Port driver), abbreviations
used, Windows registry keys, recommended debugging software, Firewall
considerations...etc.
Easily
transmit data over long-distances and in noisy environments with
Advantech's Ethernet to Fiber Network Convertors
ADAM
I/O is one of the original products of Advantech. It was first conceived
as a remote real I/O solution for industrial applications using
the common multi-drop networking communication standard of the day,
serial RS-485.
From
its inception ADAM used a proprietary ASCII protocol which was thoroughly
documented and completely 'open' to every user. Today, the concept
of 'open' has been epitomized in technologies like the Internet
itself, the Java development environment, and it even evident in
the industrial arena with protocols like MODBUS. The ADAM ASCII
protocol was one of the earliest pioneers of what has become the
popular standard of 'open' architecture.
Can I Use Shielded Network Cable with ADAM-6000?
Yes.
The ADAM-6000 has shielded RJ-45 sockets that accept standard CAT5
RJ-45 plugs shielded or un-shielded. Be sure to use proper shield
connection to avoid ground loops. Ethernet network communication
tends to be very reliable. The physical characteristics of Ethernet
cable are very similar to serial RS-422 cable. Like RS-422, Ethernet
uses twisted pair that gives it excellent immunity to ambient electromagnetic
interference, EMI. However, significant EMI spikes will still disrupt
the signal on twisted pair.
Advantech's
ADAM-4000 Series Used for Clean Room Environment Monitoring
Clean
rooms are critical facilities for semiconductor production. Processes
that are not strictly controlled can produce defective chips and
waste valuable resources. Supervising a clean room environment includes
managing the air filter system, controlling the HVAC system, and
monitoring room temperature, humidity, pressure, gas presence, and
other factors. Field engineers working for semiconductor manufacturers
want continuous, easy to use PC-based clean room environmental monitoring
and control systems.
 See
What's New in Advantech's ADAM I/O Product Line
With
over 20 years of reputation in the Industrial Automation Market,
Advantech continues to introduce new products that lead the way
in the Industrial I/O market. This year has been no exception. So
far, Advantech Automation has announced over 50 new products to
their already robust line of Industrial I/O products.
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