PC-JUN09-PG14.OK:PC-JUN09-PG14.OK.qxd 02/06/2009 13:03 Page 14
Products Editor’s choice
Competitively-priced composite
PLC performs on price and size
valves offer chemical resistance
The MELSEC FX3 series of PLCs, from gram step memory enables it to handle
Tyco Flow Control has intro- resistance and reduced weight, Mitsubishi Electric, has been expanded significant automation tasks, and opens
duced the Keystone Composeal while being competitively-priced with the addition of the FX3G, a compact up the possibility to utilise structured pro-
range of butterfly valves which when compared to traditionally controller for mechanical handling and gramming techniques to IEC 61131-3.
feature a composite body and constructed products. plant engineering automation. It offers 128 In addition to the standard system bus
disc-shaft assembly. This means The range has a split body that I/O (expandable to 256 I/O with a serial net- for up to eight expansion, special func-
the valves offer good chemical clamps the seat securely in posi- work) a powerful CPU and easy configura- tion and network modules, the controller
resistance, external corrosion tion around the whole 360˚, so it tion through clip-on application modules. also has a second bus system. Up to four
is suitable for high line velocities The compact PLC replaces the FX1N, additional modules, two interface mod-
and vacuum applications. Its one and is said to include a larger program ules and two analogue adapters can be
piece disc stem is said to min- memory, faster instruction execution, connected to this ‘adapter’ bus.
imise hysteresis problems, so it is additional programming instructions and With communications and networking
suitable for regulating, as well as improved functions and expansion becoming ever more important, the FX3G
on/off duty, options. It is based on the same space supports Profibus, CC-Link, Ethernet and
The valves are available with saving technology as the more powerful CANopen, plus data communications via
short lead times and can operate FX3U and FX3UC. All the necessary com- up to three serial interfaces. A USB port
in a temperature range -40 to ponents, such as power supply unit, and an RS-422 port come integrated in
120˚C with a maximum pressure processor, memory and I/Os, are integrat- the front panel.
rating of 10bar. Thanks to the ed directly into the units. Mitsubishi Electric
improved mechanical properties Its 0.21 microsecond processing per T: 01707 276100 Enter 206
of composites, the valves are said logical instruction cycle and 32,000 pro-
www.mitsubishi.co.uk/automation
to provide comparable perfor-
mance to traditional metal
resilient seated butterfly valves.
Couple this with the increased
costs of materials such as iron,
stainless steel and metal alloys,
and the advantages are clear.
Tyco Flow Control
T: 01858 467281 Enter 205
www.tycovalves-eu.com
Enter 21
14 JUNE 2009 Process & Control
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48