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RTU8

Product catalog summary

Introduction
The RTU8 is a compact outstation designed for industrial environments, featuring data logging and local control capabilities. It is suitable for DIN-rail mounting and can operate independently of mains supply interruptions due to its built-in power supply and battery charger.

Specifications
The RTU8 supports various input/output configurations, including digital and analog inputs and outputs. It is compatible with Brodersen Series 2000/4000 expansion modules and can be programmed using IEC 1131-3 PLC programming language. The unit supports local data logging and can accommodate up to 32 I/O terminals.

Communication and Control
The RTU8 uses the Modbus RTU protocol for data transfer and can connect to a PC via direct connection, dial-up modem, GSM, or radio modems. It offers an SMS alarm option when connected to a GSM modem.

Technical Description
The RTU8 includes opto-couplers for digital I/Os and galvanic isolation for analog inputs. It supports various power supply configurations and includes a real-time clock for time-based operations.

I/O Expansion
The RTU8's I/O capabilities can be expanded with additional modules, supporting up to 104 analog or 496 digital I/Os.

Power and Performance
The RTU8 includes a power supply block diagram and details on power consumption and battery performance. It supports various power supply options, including built-in mains and battery charger configurations.

Additional Features
The document covers special registers, error indicators, modem control registers, and user registers. It provides technical data on interfaces, control and data logging, power supply, digital and analog I/Os, and relay outputs.

Power Supply Requirements
If the current consumption of expansion modules exceeds the power supply's capability, an additional power supply is necessary.

CPU Capacity and Performance
The RTU8 is equipped with an 8-bit micro-controller. Its performance is dependent on the load, which is application-specific. Testing is recommended to evaluate performance.

Local Control
The RTU8 includes an IEC 1131-3 (B-CON) programming facility, programmable via Instruction list language. Local processing and data handling are configured using a PC with programming tools like B-CON or A-WARE.

Programming Instructions
Examples include LD (load), ST (store), AND (logical and), ADD (add), MUL (multiply), R (reset), and GT (greater than). Compiled instructions are stored in Flash memory.

Registers
The RTU8 has 2048 internal BM registers, with the first 30-40 reserved for specific functions. Registers from BM512 and up are battery-backed.

I/O Addressing
The RTU8 uses a structure similar to other Series 2000/4000 products, with digital, analogue, auxiliary, and gateway I/O types.

Data Logging
Data can be uploaded cyclically, event-driven, or on request. The log buffer can store up to 480k bytes, with data uploaded via RS232 or modem.

Log Buffer
A ring buffer stores data, with older data overwritten when full. The buffer size is user-configurable.

Overview
The document provides technical details on the RTU8, outlining installation, data upload, communication protocols, and modem control features.

Specifications
The RTU8 can be connected to a standard PC via RS232 or a Hayes compatible modem for data upload. It uses the Series 2000/4000 tool-kit for Windows 95 and NT.

Data Upload and Logging
Data from the RTU8 is uploaded to a PC, stored in a CSV file format, and organized by station number and year.

Communication Interfaces
The RTU8 supports both RS232 and RS485 interfaces. The RS485 interface is isolated to prevent noise interference.

Modem Control
The RTU8 can initiate or receive dial-up connections using Hayes commands. It supports multiple pre-stored numbers for retries.

Modbus Protocol
The RTU8 uses the Modbus protocol for I/O transfer and configuration. It supports Modbus holding registers and a special protocol for program download and log data transfer.

Driver and Interface Support
The RTU8 is supported by low-level PC drivers for various Windows versions and standard SCADA packages.

Conclusion
The RTU8 is a versatile outstation with robust data logging, communication, and control features, suitable for integration into larger monitoring and control systems.

Specifications
The document outlines the specifications for the RTU8, including a logical address range of 0-65535 and a physical Modbus address range of 1-31.

Power Supply and Battery Management
The RTU8's power consumption is dependent on the number of I/Os connected. It features a current limiter and provides examples of power consumption for different RTU8 versions.

Counter Inputs
The RTU8 supports two 32-bit counters on digital inputs, which are battery-backed and include a reset function.

Communication and Modem Control
The RTU8 includes modem control registers for managing communication states and initiating calls.

Real-Time Clock and Time Base
The RTU8 features a real-time clock for time-based functions and a time base for cyclic logging and other applications.

Special Registers and User Configuration
The document describes various special registers for error monitoring, user configuration, and code switch settings.

Conclusion
The RTU8 is a versatile outstation designed for efficient power management, data logging, and communication.

SMS Sending and Receiving Procedures
The document outlines the procedure for sending SMS messages using a pre-stored message system.

SMS Safety and Acknowledgement
The system can restrict SMS commands to three predefined numbers for safety.

Technical Specifications

Power Supply: Various supply versions with specific voltage ranges and power consumption limits.
Digital I/O: Input voltage ranges and current specifications are detailed.
Interface: RS232C serial interface with specified baud rates and Modbus protocol support.
Control and Data Logging: The RTU supports IEC 1131-3 programming.
Relay Outputs: Specifications for relay outputs including voltage, current, and lifetime.
Environmental and Mechanical: Operating temperature ranges, EMC compliance, and mechanical protection standards are provided.

Configuration
The RTU8 configuration is managed via IOExplorer or System Monitor.

Analog Inputs
Details on analog input configurations, measuring ranges, and accuracy are provided.

Overview
The document provides technical specifications, procedures, and recommendations for the RTU8.

Specifications

Clock Adjustment: Time in the RTU8 can be adjusted manually or by syncing with a PC clock.
Linearization Tables: User-defined tables for analogue I/O are supported.
Password Facility: Can be enabled or disabled for security purposes.
Scan Interval: User-selectable but limited by micro-controller capacity and CPU load.
Power Supply: Includes a mains indicator and a charger with thermal protection.
Battery Management: Battery capacity should match consumption and backup time requirements.
Communication: Setup via IO Explorer, with station address defined by binary values.

Procedures

Battery Checks: Battery is disconnected from the charger at startup and every 24 hours to check voltage.
Log Upload: Time depends on data speed; can be reduced by uploading only new data.

Recommendations

Battery Selection: Consider temperature and age for high-security applications.
External Fuse: Battery must have an external fuse, max 2A.
Noise Management: Use shielded cables or twisted pairs if necessary.

Limitations

Current Consumption: Must not exceed maximum total output current.
Temperature Effects: Maximum load current should be de-rated above 25°C.
Firmware Limitations: Earlier versions provide less memory capacity.

Additional Notes

Registers BM 0-511 are cleared at startup; BM 512-2047 are battery-backed.
External output is short circuit and overload protected.

Catalog excerpts

Compact outstation with data logging and local control RTU8 INTRODUCTION The RTU8 unit is a compact outstation with data logging facilities designed for use in the industrial environment. The unit is designed in a very compact 108/162 mm wide module for DIN-rail mounting (35 mm symmetrical ). Dimensions conform to DIN 43880 (used for circuit breakers) thus insuring easy installation in standard installation panels and boxes widely available in the electrical industry. The RTU8 can be delivered with a built-in mains power supply and a charger (with a battery monitor) for an external lead acid battery, enabling the RTU to operate regardless of interruptions in the mains supply. The RTU8 has a number of integral inputs and outputs and further I/O´s can be added via an expansion bus. The RTU8 is compatible with the Brodersen Series 2000/4000 product range and thus a wide variety of expansion modules can be easily connected to the unit by standard cables. The unit can be programmed to perform simple control sequences using an IEC 1131-3 (PLC) programming language. The RTU8 includes facilities for local data logging, the process values to be logged are defined as part of the IEC 1131-3 application program. Programming, setup and data transfer is achieved by using the IOTOOL32. When connected to a GSM modem the RTU offer a simple SMS message alarm option. The Modbus RTU protocol is used for data transfer from the RTU8 to a PC either directly or via Hayes compatible dial-up modem, GSM, or radio modems. VERSIONS/ORDERING CODES RS232 Expansion Mains supply Input/output 8 digital input/8 digital output 16 digital input/16 digital output 32 digital input (10-30V DC) 8 digital input/4 analog input 16 dig. in./8 dig.out./4 analog in. 24 digietal input/12 relay output Options RTC and data logging Power supply 12V DC PS (not isolated) Built-in mains PS 110-240V Built-in PS and battery charger 110-240V Built-in PS 24-48VDC Loop supply No loop supply 24VDC/200mA* 12VDC/400mA* *)UCR-28IO only Analogue input range 0-10V/0-20mA 4-20mA 0-5V 0-20mA 0-2V Digital input range (digital types only) 10-30VDC uni-polar P1 30-60VDC uni-polar P2 30-60VDC bi-polar P3 40-72VDC uni-polar P4 40-72VDC bi-polar P5 10-30VDC bi-polar P6 DI on modules with AI is always 10-30VDC uni-polar unless other is specified.

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Compact outstation with data logging and local control RTU8

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Compact outstation with data logging and local control RTU8 TECHNICAL DESCRIPTION Input/output The RTU8 basic I/O fit can include up to 32 input/output terminals. Serial I/O options are available: Version UCR- 8DIO 16DIO Digital inputs 8 16 (10-30V DC) Digital outputs 8 16 (PNP o. c.) Analogue inputs 0 0 (0-10V/4-20mA) Relay outputs (NO) All digital I/O´s are equipped with opto-couplers. The analogue inputs have galvanic isolation between the individual channels. Solid state relays are used for multiplexing the analogue inputs. Spare terminals 8 digital inputs + External + supply 10 - 30V DC...

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Compact outstation with data logging and local control RTU8 I/O expansion The basic I/O fit of the RTU8 can be expanded by attaching System expansion modules. RTU8 with expansion modules BRODERSEN BRODERSEN Expansion modules are available with the following I/O configuration: 8-32 10-30V inputs 8-32 10-30 V PNP (or NPN) open collector outputs 8 230V inputs / 8 230V outputs (potential free relay) 4-8 analogue inputs (0-10V, 4-20mA, etc.) 8 Thermo coupled inputs (J, K, R, S, T type) 8 Pt-100, Pt-500 or Pt-1000 RTD inputs 4 analogue outputs (0-10V, 4-20mA, etc.) A maximum of 30 expansion modules...

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Compact outstation with data logging and local control RTU8 I/O addressing (B-CONW) The address of the I/O in the RTU8 has the same structure as other Series 2000/4000 products. The I/O´s are separated into 4 data types; Digital I/O (DI/DO) Reflect the physical digital input and output on the node (module inclusive any I/O expansion). If you want to have them in our IOTOOL32 database, they need to be defined in the B-CONW application program. Digital input (DI): Bit input: i0.0, i0.1…..i0.7, i1.0…i1.7, i2.0…… i0.0 loads the first digital input (input 0). i1.0 loads digital input number 8 (first...

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Compact outstation with data logging and local control RTU8 B-CON address

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Compact outstation with data logging and local control The up-loading of data from the RTU8 can be: • Event driven (such as an alarm). • Upload on request from the RTU8. The RTU8 can log events and process values for later analysis. The data logging process can be divided into 3 sections: • Defining the events and the selection of values to be logged. • Storage of data, with time stamp, in the log buffer (max. 480k • Upload of the data from the module via RS232 or modem to Theactual process values to be loggedare selected using the IEC1131 - 3 programming facilities in the RTU8. Data logging...

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Compact outstation with data logging and local control RTU8 Log buffer The log buffer is a ring buffer (FIFO), in which the data is stored in the order they appear (up to 480 k bytes). If the buffer is not emptied, (uploaded via the RS232) the oldest data will be over written by new data, when the buffer is full. Each record in the log buffer is separated with DLE/STX characters. If DLE (hex code 10) appears in the data area, DLE stuffing is automatically inserted. The PC utility automatically removes the DLE stuffing during upload. One log record can contain up to 120 words of actual log data,...

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Compact outstation with data logging and local control RTU8 If a data-word is used for individual bits (0-15), a conversion must be made in the spreadsheet if it is required to view the individual bits. Net 1 Net 2 For importing the log direct into another PC programme the IOTOOL32 include a DLL interface to the upload facilities. Are used to import the log data into e.g. SCADA, databases with the purpose of offering extended historical data handling (trends, graphical views etc.). 1996 1997 1998 The comma delimited file can be imported into a database or a spreadsheet for further analysis e.g....

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RTU8

RTU8

Catalog excerpts

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