Configuration and diagnostics

Trio radio configuration and diagnostics are provided by the TView+ package. Trio radios are configured through connection of TView+ running on a PC or laptop onto the =system port on a remote radio or radio base.

Additionally, the J-Series radios can be configured through a web browser interface to the on- board web server using Ethernet.

Diagnostic information provided by all Trio radios includes:

Radio alarm status Transmit power

Receive signal strength Frequency deviation Reflected power (VSWR) Temperature

Power supply voltage

Trio radio diagnostics are available using the TView+ package through a number of interfaces: Locally to a remote radio or radio base through connection to the system port

Remotely across a radio network to remote radios and radio bases

Additional diagnostics are provided by Trio base radios to assist in managing the remote communication networks.

SNMP Trio diagnostics

Radio diagnostics information is also available through the open SNMP protocol over IP networks for the J-Series and Ethernet E-Series radios. SNMP V1 and V2c are supported. SNMP provides the ability to integrate status, alarm and configuration capability with IT Network Management System (NMS) infrastructure.

Real-time radio diagnostics information is also available via SNMP notifications. This eliminates the need for polled base radio alarm status monitoring to maximize the available channel bandwidth for critical SCADA applications.

User configurable flexibility is provided for all key radio parameters including temperature, supply voltage, received signal strength (RSSI), transmit power, VSWR and error states, as well as customized alarm limits to ensure that important alarms are generated and sent to the user‟s SNMP agent.

ClearSCADA Trio diagnostics

ClearSCADA integrates Trio diagnostics into a remote SCADA environment using one of two methods:

ClearSCADA Trio Diagnostic driver

Using the native ClearSCADA Trio Diagnostic driver, ClearSCADA connects to the Trio radio diagnostics interface using either a serial interface or encapsulating the serial traffic within a UDP datagram for transmission via an Ethernet interface. From this connection it can obtain diagnostics for all interconnected Trio radios in a remote communication network.

SNMP

By using the SNMP client objects in ClearSCADA, Trio diagnostics can be collected via SNMP (for the Trio J-Series and Ethernet E-Series radios)

Diagnostic information collected by ClearSCADA, using either of these methods, is available for utilization with full ClearSCADA functionality, including historical recording, alarming and

escalation, event logging, display to an operator, access by external applications for analysis, and so on.

4.5.

RTU solutions

SCADAPack smart RTUs (also known as standard SCADAPack), SCADAPack E smart RTUs and M340 PAC with an additional RTU module provide a comprehensive RTU feature set for field installations requiring local control logic, connection with I/O and intelligent field equipment, telemetry communication via remote communication networks and standard protocol support for operation with a wide range of remote SCADA systems.

Important features of the standard SCADAPack RTU range for solutions include: Power management modes well suited to low power applications

Choice of basic ladder logic (Telepace) applications or IEC 61131-3

C/C++ applications, allowing complex algorithm development by sophisticated users Specifications well suited to harsh environments

Important features of the SCADAPack E RTU range for solutions include:

Native data processing providing in-built functionality without user logic programming Remote configuration management allowing manual and automatic configuration and logic management using ClearSCADA; including efficient remote firmware updating

Native IEC 61131-3 logic with comprehensive system services for control, communication applications and interacting with the SCADAPack E RTU database

Comprehensive diagnostics available locally to the RTU and remotely across telemetry links Enhanced security using open DNP3 Secure Authentication

Specifications well suited to harsh environments

The M340 PAC with its additional RTU module provides an interface between a control

application and a telemetry system using DNP3 or IEC 60870-5. It is suited to a complex control logic application where derived data is to be presented to a remote telemetry system.

4.5.1.

Applications for RTUs

The choice of compact or modular RTU is typically made based on complexity and size of individual remote site applications, but may also be influenced by factors such as low power requirements, environmental conditions and remote configuration management requirements. The choice of standard SCADAPack and SCADAPack E is typically made based on application sector (Oil & Gas or Water & Wastewater) or telemetry protocol (Modbus, DNP3, IEC 60870-5). The choice of RTU device model is typically made based on the complexity and size of individual remote site applications.

For example, for gas flow with full operational audit traceability with one or two flow runs using Modbus protocol, a SCADAPack 300 fitting the required I/O mix is ideal. For an application with eight or 10 flow runs, a SCADAPack 32 RTU may be chosen.

Note: The M340 PAC gas flow calculation library does not provide the traceability facilities

normally required for electronic flow measurement applications. For a gas pipeline application requiring a control solution for a compressor station with a requirement for remote communication using DNP3, for example, an M340 PAC with an additional RTU module could be chosen, providing control and an interface to a telemetry system.

Figure 17: Choosing an RTU based on application

A water application with a small to medium I/O count for a small pumping application would result in the choice of a SCADAPack 300E. A more complex application (larger pumping station, combination pumping / dosing system, or site with multiple instrument connections or

communication links) may result in the selection of a SCADAPack ES. A treatment plant with complex drive control and requiring a large number of fieldbus I/O may use an M340 PAC with an additional RTU module as the interface to bring data into the telemetry system.

The Schneider Electric Modicon M340 PAC is a versatile device suitable for a number of higher complexity control applications. Its additional RTU module provides an interface to a telemetry system using open protocols. As a general purpose control device it may not be optimized for all applications. The high level of built-in remote SCADA functionality and configuration management of SCADAPack E RTUs makes them ideal for a wide range of Water & Wastewater applications. The low power and rugged environmental specifications of standard SCADAPack RTUs make them ideal for a wide range of Oil & Gas applications. The M340 PAC specifications, as shown by the yellow arrows in Figure 17, indicate that it may not be suited to applications with severe environmental constraints, such as those with very low temperature and very low power consumption requirements.