White Papers

Motorola | Beijer

Motorola

Ladder application program Load without database reset - 2010
- The purpose of this technical note is to specify the conditions for Ladder application program 'Load' without Reset, and to recommend to application programmers how to pre-build Ladder application programs that maximize 'Load' without Reset after application update.
Considerations for Defining a Redundant RTU - 2010
- Supervisory Control and Data Acquisition (SCADA) solutions are implemented for controlling
  critical utility infrastructure such as water storage tanks and water supply, electricity distribution,
  and oil and gas pipelines. Among all remote SCADA installations operated by customers, some
  may require using a more reliable Remote Terminal Unit (RTU) along with a more reliable
  communication solution, than others, which are operating in the same system.
Motorola's MDLC Protocol Enhances DNP 3.0 based SCADA Systems - 2010
- Supervisory Control And Data Acquisition (SCADA) solutions must integrate reliable and secure
  communication. The selected data protocol must have tested interfaces to a wide range of
  instrumentation and field sensors as well as SCADA Master Control Centers (MCC). To ensure reliable SCADA system operation, messages sent from the MCC to the Remote Terminal Unit (RTU), whether directly (Point-to-Point) or via one or more repeaters, must be delivered within a reasonable time and absolutely error-free. When the SCADA system utilizes wireless media, the implementation and integration requires more attention and expertise than in non-wireless data communication systems.
Cost Effective Approach to SCADA Security for Water Systems - 2010
- Supervisory Control And Data Acquisition (SCADA) solutions provide the basis for reliable operation of water systems and also means for achieving significant operating and financial benefits. They provide support for complete management of remotely installed equipment such as: wells and booster pumps, pressure reduction valves, motor operated valves, and monitoring of remotely installed pressure and level sensing devices, etc.
Selecting Wireless Network for a Wide Area SCADA System - 2010
- Supervisory Control And Data Acquisition (SCADA) solutions are used to monitor and control remote sites. If one can afford to use optimal communication media regardless of cost, implementing a wide area SCADA may be a relatively simple task. However, when the topology and system requirements call for the use of wireless media, the implementation requires special expertise.
Dynamic Pressure Control Enhances Water System Operation - 2009
- Supervisory Control And Data Acquisition (SCADA) solutions provides a basis for a more reliable and efficient operation of water systems while also providing significant financial benefits. Both of these are important for utility management, by providing a means for increased productivity, helping to reduce the number of failure events, and by minimizing the loss of potable water.
Advances RTUs Simplify and Enhance SCADA-data communications - 2009
- Supervisory Control and Data Acquisition (SCADA) solutions must provide reliable and timely
  communications, and have tested interfaces between a wide range of instrumentation and field sensors as well as SCADA HMI's. This means that to assure reliable SCADA-Data communications messages are sent between the control center and the Remote Terminal Unit (RTU), directly (point -to- point) or via one or more repeaters. They must be delivered error-free. When the SCADA engineer utilizes any type of wireless medium, the implementation requires more attention and expertise in order to achieve communication reliability. To achieve this important goal, engineering firms often suggest Radio Frequency (RF) path analysis. Measurement of the Signal-to-Noise (S/N) ratio and calculation of the Fade Margin provides indications on the expected communication quality and reliability. However, as explained in this paper, one must differentiate between mobile and transportable data communication vs. Fixed Data communication, where the RF engineer may consider unique solutions without spending time and money on actual point-to-point signal strength measurements.

Beijer Electronics

Trends in HMI - 2011
- What are latest trends in HMI? And what should you look for or be aware of, when you browse the market in search for new HMI solutions? The purpose of this white paper is to outline and describe some of the most recent key trends in software driven industrial HMI solutions.