RESPONDER RTU

The micro-sized RESPONDER™ RTU provides advanced telemetry and control functions for SCADA (Supervisory, Control, and Data Acquisition) systems.

A RS-232 interface provides for communications to a Master via dedicated channel, (dial-up) public telephone network, or radio channel. Four of the eight status inputs may be optionally configured as low speed pulse inputs. The unit's firmware is tailored by ADC per requirements to provide protocol support and other real-time routines.

Input/Output: 8DI 4AI 4DO

APPLICATIONS

• Electric power distribution
• Water/Gas pipeline control
• Automatic metering
• Industrial I/O systems

FEATURES

• Inexpensive and easy to install
• Small (4 X 6 X 1") size
• CMOS circuitry for minimum power consumption and high noise immunity
• Single-board design
• Optional 1ms event recording ("SOE")
• Industrial quality components and workmanship for long and reliable operation

SPECIFICATIONS

Operating environment (electronics)

• Standard -10 to +70°C temperature
• 0 to 95% relative humidity (non-condensing)

Operating power

• 10-14VDC input power
  (AC/DC-DC converters/chargers available)
• Typical logic current drain 75mA
• Typical ON control relay draws 33mA

Digital inputs ("status"), common mode

• Input signal must sink 5mA from 12VDC source

Analog inputs (A/D conversion)

• Conversion rate: 20msec per point, nominal
• Conversion accuracy: ±0.10% of span
• Conversion resolution: 1 part in 4000
• Accepts ±1mA, ±2.5V (bipolar) signals or 420mA, 0-2.5V (unipolar) signals
• Inputs are single-ended and are referenced to the instrument supply common

Analog data mode options (firmware setting)

• "Offset:" 0.5-2.5V 0-4000 raw counts
• "Linear:" 0.0-2.5V 0-4000 raw counts
• "Signed:" ±2.5V ±2000 raw counts (2's compliment)

Optional (soft) pulse inputs

• Input frequency: DC to 13Hz

Transient protection

• Meets or exceeds IEEE C37.90A-1987
  surge withstanding specification

Primary control outputs

• Isolated Form A contact
• Rated for 0.6A at 120VAC or 2.0A at 30VDC
• Optional interposing relays per requirements

Communication Port

• Interface: RS232 (DE9 female). Adaptable to RS422 or RS485 with optional line driver chip.
• Word length: 10 or 11-bit, asynchronous
• Data rates: 600-4,800bps

ADDITIONAL INFORMATION

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Terminals & Connectors

ORDERING INFORMATION

200074: RESPONDER RTU CARD

This assembly is provided in the following versions (XXX designation of part number).

• -001: Unit card, bipolar analog inputs
• -002: Unit card, unipolar analog inputs

200074-001 $590
200074-002 $590

Specify communications protocol and/or firmware version when ordering.

OPTIONAL LINE DRIVER CHIPS. These components replace the standard RS-232 line driver I.C. (socketed DIP).

200127-001, RS-485 $24
200127-002, RS-422 $24

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