195-RUG3 Remote Terminal Unit 
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The 195-RUG3 Remote Terminal Unit (RTU) is ideal for applications requiring multiple stations in a system. The units are addressable and can communicate through other RTUs or directly to a base station. The RUG3 is small (3.5" x 4.5" x 1.25") and packaged in a 16 gauge steel powdercoated case. It can be panel or DIN rail mounted and housed in a NEMA enclosure for outdoor use. Units can be linked together using radio communications.
The RUG3 is low power (< 4 mA) when running full time with the display and modem on.
The RUG3 uses a secure CRC error checking protocol for monitoring and control applications. It is compatible with modbus binary protocol and can be configured as a modbus slave unit.
The display is sunlight readable with or without the LED backlight. The display/keypad make it possible for you to set up the unit without a field computer, observe sensor values, and enter set points on site. Set point entry can be password protected.
All calculations are performed in engineering units using floating point math so no operator interpretation of raw data is necessary.
The built-in operator interface uses familiar prompts and engineering units display, eliminating operator guesswork and code memorization. The sealed tactile keyboard enables setpoint and mode changing.
The CPU is integrated and has 2K of battery backed RAM, 60K of program FLASH and 512K of logging memory. The top I/O includes 6 analog inputs, 8 digital inputs, and the loop supply.
The rear panel provides access to the modem and program port. The power interface and the 4 relay outputs are also accessible.
Specifications
| LOGIC Family All low power CMOS MICROPROCESSOR 16-bit MSP430, 8 Mhz, 16 bit data bus, 16-bit address bus. MEMORY RAM-2 Kbytes battery backed low power static RAM Program FLASH-60 Kbytes Logging FLASH-512 Kbytes Battery Backup-Lithium coin cell backs up RAM and real-time clock/calendar min 2 years DISPLAY 2 line X 16 char backlit LCD, sunlight readable, backlight switchable by software. KEYBOARD 16 key sealed tactile membrane with interrupt scanning REAL-TIME CLOCK/CALENDAR Battery backed clock/calendar 0.005% crystal accuracy OPERATION SECURITY Watchdog Timer-Hardware timer resets unit .5 seconds after interrupt fail. Cannot be disabled. Telemetry Watchdog-Resets rcv buffer if no character received within 1 sec. Brownout Detector-Halts process if logic voltage falls below 2.7 V, restarts when voltage rises to 3 V. AUTOBOOTING Auto startup on power application I/O SURGE PROTECTION All I/O is optically isolated, meets IEEE surge protection requirements. ANALOG INPUTS-12 bit 6 channel per board, 12 bit res, successive approx, optically isolated, 4-20 mA or 0-5 V. Factory calibrated. ANALOG OUTPUTS 4 chan optional, 12 bit resolution, optically isolated. Each module replaces one relay. Factory calibrated. DIGITAL INPUTS Status-8 chan, dry contact compatible, self powered Pulse Counting-All DI count 128 PPS Pulse Duration Detecting-All can convert pulses to analog with 4ms resolution Shaft Encoder-DIs in pairs used to decode shaft encoders | DIGITAL OUTPUTS 4 ch, 10 amp relays Pulse Duration Outputs-Relays can generate pulse width modulated or one shot signals with 4 ms res. ANEMOMETER INPUT AI6 connected to clipping amp, counted to derive windspeed. REFERENCE OUTPUT 2.5 Vdc reference available to power potentiometers, shares pin with DI8. INSTRUMENT POWER Loop supply switchable to battery voltage and can be switched on/off by software. Diode isolated. SERIAL PORTS One programming/gen purpose port plus one RS232/modem port MODEM Bell 103 standard Radio Interface-4-wire audio, adj gain, xformer isolated, optically isolated key line. Low tones mode for splinter chan. Phone Line Interface-4 wire audio adjustable gain, transformer isolated Transmit Power-0-4Vp-p, software adjustable in 32 steps COMMUNICATIONS ASCII-Standard R9 protocol-Background CRC gen/decode, variable length messages, user defined message lengths. Can combine status, integer, float, in any message. Eavesdrop Mode-R9 protocol, any RTU can accept data passing between any other stations. Peer to Peer-Full RTU to RTU or RTU to master or master to RTU messaging Store and Forward-Initiating station sets path through up to 3 intermediary stations. Address Range-1 to 254 POWER INTERFACE 12 VDC ± 20%, diode isolated. < 3 mA normal operation (relays, loop supply and backlight off) to 440 mA max LOOP SUPPLY Built in switchable regulated 24 Vdc ± 5%, 120 mA |
I/O CONNECTIONS
All I/O uses removable rising cage screw headers in banks of up to 10 each, 14 ga wire. Modem signals use RJ45 jack.
SOFTWARE
Storage-Operating system and all user configuration and programming stored in nonvolatile flash memory. Flash loader stored in flash protected boot block.
Security-Parameter voting and memory integrity test on boot up, CRC gen/detect on serial ports. Program loading CRC protected.
Scanning-Built in software scans all I/O, ports, timers, real-time clock.
PROGRAMMING
Modules-Applications use precompiled modules resident in flash memory where programmer interconnects modules and sets properties using supplied Win95/98/NT/XP program. No programming required for most applications.
LADDER LOGIC
Ladder logic is built in to the WIN95/98/NT/XP configuration program to handle misc controls.
DATA LOGGING
Logs floating point, integer and status samples with time tags to onboard flash eeprom. 128K samples and time tags. Can dump logs to serial port as comma delimited ASCII.
VARIABLES
Supports 16 bit integer, 32 bit floating point, boolean, strings.
ERROR MESSAGES
Configuration program handles all setup errors. Run time software is self protecting... no run time errors.
ENCLOSURE
16 ga steel, blue powder coat, DIN rail mountable Case 4.5 X 3.5 X 1.3 in. Panel mount flange 6.0 X 4.7 in. TEMPERATURE RANGE -40 to +85 deg C logic -20 to +60 deg C LCD display DOCUMENTATION 200+ page bound manual PDF version available online WARRANTY 1 year std limited warranty |
Ordering Information
195-RUG3C Remote Terminal Unit, no keypad or display
195-RUG3D Remote Terminal Unit, with keypad and display
195-RUG3P Remote Terminal Unit, panel mounted, includes keypad and display
195-RUG3-PRG Custom Programming
195-evView Graphical Display & Analysis Software
310-140 AC Power Supply, 115V
Consult factory for applications.
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Data Acquisition
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