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DS-32C M Main Board | Technical Specifications |
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Technology |
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- CMOS components for low power
consumption and extensive use of surface mount components.
- Employing In-System-Programming
technology for EEPROM and EPLD
- Rear accessible termination for ease of
circuit board replacement
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CPU and Memory |
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- 32- bit HCMOS Motorola 68332 @ 20 MHz.
1 MegaByte EEPROM.
- 1 MegaByte battery backed up RAM with 3
years of shelf life. Battery can be changed with live power on for
uninterrupted operations.
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Real Time Calendar
Clock |
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- Hardware calendar clock with year, month, day
of month, day of week, hour, minute and second.
- Optional high accuracy, temperature
compensated crystal oscillator, 20.0000 MHz +/- 1 PPM at -20 to 70 degrees
Celsius.
- Battery backed up Real Time Calendar Clock
with 3 years of shelf life. Battery can be changed with live power on for
uninterrupted operations.
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Microprocessor Supervisor |
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- Watchdog Timer, Power Monitor, and Reset.
Power switching functions.
- Watchdog relay for system malfunction
annunciation, indication and control overrides.
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Power Requirement |
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- Isolated unregulated 12VDC (1A) or 24VDC
(1/2A) for electronics.
- Separate power supply for Digital Input
excitation.
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On-board Power Supplies |
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- Isolated unregulated 12VDC (1A) or 24VDC
(1/2A) for electronics.
- Separate power supply for Digital Input
excitation.
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Communications |
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- RS232 ports: 4 Sync/Async user ports and 1
Async jumper selectable maintenance or user port.
- Baud Rate: 300 - 38.4 kBaud.
- Hand shaking signals: DCD, RTS, CTS.
- Specifications: Meet all EIA/TIA-232-E
and V.28 specifications.
- Indicators: Transmit and Receive
indicators for all user ports.
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Floating Point
Math Support |
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- Optional MC68882 Floating-point math
coprocessor.
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System Status Indicators and RTU Ambient
Temperature |
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- Power On indicator. Performance indicator.
System Normal indicator. Control Malfunction indicator.
- Temperature sensor provided.
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Operating Environment |
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- Temperature Range: -40 to +85 degrees
Celsius. Humidity: < 95%, non-condensing.
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Physical Dimension |
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- 19.0 x 7.0 inches for 19" standard rack
mount or panel mount (wall-mount solution).
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Digital Inputs |
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- Number of Inputs: 16 optical isolated
Digital Inputs with input indicator on each digital input.
- Isolation Rating: 1500 Vrms (point input
to logic).
- Hardware Digital Filter: Programmable
2-15 ms debounce timer, transition detection and interrupt capability.
(software debounce is 65535 ms).
- Accumulator: Any Digital Input can be
configured as an Accumulator.
- Maximum Rate of Accumulator: 150 Hz.
- Types of point: Form A, Form C and BCD.
- SOE: Any Digital Input point can be
Configured as SOE with accuracy of 1 ms.
- Chatter Filter: Available for preventing
malfunctioning inputs from filling up the SOE buffer.
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Analog Inputs |
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- Number of Inputs: 16 Analog Input points
with one shield for every 2 points: Bipolar, Differential input
+/- 10.0V, +/- 7.5V, +/- 5.0V, +/- 1.0V, +/- 1 mA, 0-1mA, +/- 10 mA,
4-20 mA
- Accuracy: +/- 0.05% (DC voltage input).
- Temperature Coefficient: +/-5PPM per
degree Celsius.
- Resolution: 15 bit plus sign.
- Auto Calibration Reference Points:
-5.000VDC, 0VDC and +5.000VDC.
- CMRR (@0-60Hz): 90 dB.
- NMRR (@60Hz): 60 dB.
- Calibration: Analog Input
self-calibration, Auto-correction of gain and offset errors.
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Digital Outputs |
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- Number of Outputs: 16 relay outputs with
output indicator on each Digital Output.
- Control Output Configurations: Isolated
discrete control output relays, Trip/Close, Raise/Lower, Set/Reset,
Pattern
Controls, Relay fail to OFF, Relay fail to last commanded position.
- Control Security: Single component
failure protection, Master Trip/Close relays, relay driver input
status check back for point selection confirmation, double point
select-before-operate.
Either a malfunction of the system (detected by the watchdog), or the
failure of a point selection confirmation shuts down the control module.
- Remote/Local Switch: Enable/Disable
controls.
- Control Functions: ON/OFF, Timed ON/OFF
(pulse duration of 1 ms resolution), variable duty cycle
pulse output with variable repetition rate (Pulse Train of 1 to 254 or
continuous 1 ms
resolution), Pattern controls (a group of contiguous outputs).
- Contact Rating: 2 Amp at 30 VDC/125 VAC.
- Interposing Relay Connection: Relay
output DB37 socket for ease of interposing relay connections.
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High Speed Accumulators |
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- Number of Inputs: 3 optically isolated
inputs for Turbine, Generator and Motor RPM measurements.
- Maximum input: 20 kHz.
- Isolated rating: 1500 Vrms (Point Input
to Logic).
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