Frequently Asked Questions

  Who would use a SCADA system and why would I need it?
  In what operating systems can I run Willowglen SCADA software?
  In what industry activities can I apply Willowglen SCADA software?
  Many people tell me that SCADA systems are costly. Is that true?
  How do I choose the right system?
  What is the difference between an RTU and a PLC?
  I read that your RTU comes with video capture capability. What is this and why would I need it?
  Do you support pan, tilt and zoom functions on a camera?
  Are the video images stored?
  Is your system modular?
  Can it interface with third party systems?
  What communication protocols does your system support?
  What are the benefits of a Willowglen SCADA system?

Who would use a SCADA system and why would I need it?  
Anyone who needs to perform control and monitoring over long distances. SCADA is especially useful in harsh environments and in places with sparse availability of communications. A Willowglen SCADA system provides you heightened security monitoring. With real time information at your fingertips, you have greater control and flexibility in your day-to-day operations. You obtain fast and convenient access to critical events and information. In short, Willowglen SCADA system reduces operations and maintenance cost by providing you with vital information for equipment performance evaluation. Back to top

In what operating systems can I run Willowglen SCADA software?  
Willowglen SCADA systems runs on various platforms including Windows XP/Vista/7, X-Terminal and Sun Solaris 8/9/10. Back to top

In what industry activities can I apply Willowglen SCADA software?  
A Willowglen SCADA system is used to acquire telemetry, video and audio data, and to perform controls. You can benefit from this type of system in any industry where there is a need for automation. This includes utilities, electric power generation, transmission and distribution, communications (cellular, fiber, radio), home automation, building security, water and waste water plants, chemical plants, and many industries in between. Any task that can be automated or any data that can be recorded or measured can benefit from a SCADA system. For more functionality, our SCADA systems utilise Remote Terminal Units (RTUs) that process information at the remote site and transmit only specified data to the master (this reporting-by-exception helps keep communication lines free and keeps the master working on vital tasks). There are Willowglen SCADA systems working today that control and monitor communications, substations, waste water, municipal pumps, oil and gas pipelines, factories and transportation systems. You could also use it for security monitoring, climate control, environmental recording, etc. Back to top

Many people tell me that SCADA systems are costly. Is that true?  
SCADA systems are not costly if the correct technology is chosen. We at Willowglen have many years of experience implementing solutions that are technically sound and yet cost effective. Cost saving to the user will typically offset any initial investment within 2 to 3 years of implementation. Back to top

How do I choose the right system?  
We can help. We have a team of marketing representatives around the globe to help you with your requirements. Please feel free to contact us for any help you may need in configuring a system specifically suited to your application. Back to top

What is the difference between an RTU and a PLC?  
A question commonly asked by people involved in automation is " What is the difference between an RTU and a PLC?" Let's start with what the acronyms PLC and RTU really represent. PLC means Programmable Logic Controller while RTU stands for Remote Terminal Unit. Remote Terminal Units RTUs have the intelligence needed to control a process (or multiple processes) without intervention from a more intelligent controller or master. Willowglen RTUs offer SCADA-VIDEO capabilities and features that lesser RTUs cannot begin to offer, such as video streaming, web connectivity, interrupt driven digital and analogue inputs facilitating report-by-exception, remote connectivity, time stamped sequence of events, data logging, intelligent communications, multitasking sequential control, alarm logging, modular construction, easy programming; well, the list just goes on and on. The Remote Terminal Unit is a fast and flexible solution to most control needs. It serves both as the master controller or a slave controller. In fact, it can be used as both a slave and master simultaneously in a vertically deployed control system. It is easy to use as a protocol converter or for controlling intelligent electronics devices (IEDs). Its modularity makes it easily expandable as the control system grows. Programmable Logic Controller The first PLCs were just a software representation of relay logic. In other words, they were designed to duplicate the functionality of a rack of interconnected relays. In the last few years higher end models have been supplemented with analogue inputs and outputs. A wide range of pricing is available from low end PLCs to high end models. The low end PLCs are not even addressable (they cannot be used as a slave to another device or as a component in a control system). PLCs scan their I/O by electrically reading each I/O point. This is done quickly, but in a system with lots of I/O points it can take some time to completely scan all the points. PLCs can be used as stand-alone devices but they are often difficult to configure. Normally, they are not usable as the master controller in a control system. If your system contains lots of I/O that must be monitored or controlled, PLCs are usually not the best choice. They are not appropriate for use as protocol converters or for controlling other IEDs Back to top

I read that your RTU comes with video capture capability. What is this and why would I need it?  
Willowglen has successfully married traditional RTU with video capture technology. This is something special because you now get SCADA information and also video information from the device, equipment or location that is being monitored. Imagine the ability to visually confirm an event or an alarm that was initiated thousands of kilometres away. Even better, SCADA and video data can be carried over the same communication channel. This saves you a lot of money. Back to top

Do you support pan, tilt and zoom functions on a camera?  
Yes we do. The user may pan, tilt and zoom video cameras remotely with the user-friendly SysLink software interface. Back to top

Are the video images stored?  
Most certainly. Storage is done at the remote location itself on a hard disk drive. This has multiple advantages. Firstly, video information is stored 24 hours a day, 7 days a week even if communications is not available all the time. Secondly, video data is not archived at a central location but rather in a distributed fashion. This reduces the risk of "putting all your eggs into one basket". Last but not least, data may be retrieved when required through the communications link and either printed or stored in a floppy, CD-ROM, DVD-ROM, tape drive, etc. No more messy tape backups! Advanced search capabilities mean significant reduction in time taken to find stored video compared to traditional searching through hours of VCR tapes. Back to top

Is your system modular?  
Definitely! Willowglen systems are highly modular and are configurable to suit your specific requirements. Back to top

Can it interface with third party systems?  
Yes, our systems are built on open reliable industry standards that allow easy integration with third party systems. Custom protocols may be provided upon request. Back to top

What communication protocols does your system support?  
Standard industrial communication protocols: IEC 60870-5-101, IEC 60870-5-104, DNP3 and Modbus are included. Our system includes a Multiple Protocol Data Acquisition Service which allows it to easily add new protocols for communication with any device. Back to top

What are the benefits of a Willowglen SCADA system?  
A Willowglen SCADA system would minimise your maintenance costs whilst providing greater reliability, reducing your operations downtime. Also, it provides heightened security monitoring, reducing risks by ensuring access and traffic in any geographical area is traceable and controlled. With a SCADA system, you can expect increased operational efficiency, enabling you to deploy staff to site only when necessary. With real time information at your fingertips, you have greater control and flexibility in your day-to-day operations. You obtain fast and convenient access to critical events and information. In short, SCADA reduces operations and maintenance cost by providing you with vital information for equipment performance evaluation. More importantly, a Willowglen SCADA system added value to your business value via integration with the business systems. More business information are being analyzed to supply critical business intelligence Back to top


 
Willowglen (Malaysia) Sdn. Bhd. (Company No. 351570-A). No 17, Jalan 2/149B, Taman Sri Endah, Bandar Baru Sri Petaling, 57000, Kuala Lumpur, Malaysia.
Tel: (603) 90571228 Fax: (603) 90571218

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