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SCM9B-3000 PDF даташит

Спецификация SCM9B-3000 изготовлена ​​​​«Dataforth» и имеет функцию, называемую «(SCM9B-3000/-4000) Computer-to-Analog Output Modules».

Детали детали

Номер произв SCM9B-3000
Описание (SCM9B-3000/-4000) Computer-to-Analog Output Modules
Производители Dataforth
логотип Dataforth логотип 

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SCM9B-3000 Даташит, Описание, Даташиты
www.DataSheet4U.com
SCM9B-3000/4000 Series
Computer-to-Analog Output Modules
FEATURES
q ANALOG OUTPUT RANGES: 0-1V, ±1V, 0-5V, ±5V, 0-10V, ±10V,
0-20mA, 4-20mA.
q COMMUNICATES IN ASCII WITH RS-232 OR RS-485 SERIAL PORTS.
q PROGRAMMABLE HIGH/LOW OUTPUT LIMITS.
q 500Vrms OUTPUT ISOLATION.
q 12-BIT OUTPUT RESOLUTION.
q SCALING IN ENGINEERING UNITS.
q BAUD RATES: 300 TO 38,400.
q NONVOLATILE DIGITAL CALIBRATION.
q OUTPUT PROTECTION: 240VAC (CURRENT OUTPUT).
±30V (VOLTAGE OUTPUTS).
q DIRECT CONNECTION TO ‘DUMB’ TERMINALS OR MODEMS.
q REQUIRES +10 to +30Vdc UNREGULATED SUPPLY.
q MAY BE LOCATED UP TO 10,000 FEET FROM HOST (RS-485).
q ADDRESSABLE: UP TO 124 UNITS PER SERIAL PORT.
q ‘ BUMPLESS’ MANUAL CONTROL INPUTS.
DESCRIPTION
The SCM9B-3000/4000 series are complete computer-to-analog output
interfaces. They are designed to be mounted remotely from a host computer
and communicate, in ASCII, with standard RS-232 and RS-485 serial ports.
Simple ASCII commands are used to control a 12-bit DAC (Digital-to-Analog
Converter) which is scaled to provide commonly used current and voltage
ranges. An 8-bit CMOS microprocessor provides an intelligent interface
between the host and the DAC. The 3000/4000 are compatible with the 1000/
2000 input modules and may be mixed in any order.
The modules are easy to use. You do not need engineering experience in
complicated data acquisition hardware. This modular approach to data
acquisition is extremely flexible, easy to use and cost effective. The modules
can be mixed and matched to fit the application. They can be placed remote
from the host and from each other. You can string up to 124 modules on one
set of wires.
Although software is not required, utility software (SCM9B-S1000) is avail-
able on IBM-compatible diskette to make the 3000/4000 easier to learn and
use. S1000 software is provided at no charge on request with a purchase
order and is not copy protected.
PROGRAMMABLE FEATURES (4000 Series)
(Provides intelligent features not found in the 3000 Series.)
• Fully Programmable Output Slopes: 0.01V/s (mA/s)
to 10,000V/s (mA/s).
• Programmable Data Scaling to any Desired Units.
• True Analog Readback of Output Signal.
• Programmable Starting Value.
• Programmable Watchdog Timer Provides OrderlyShutdown in the Event
of Host Failure.
EE Prom
TRANSMIT
RECEIVE
D12
D11/UP*
D10/DN*
MICRO-
PROCESSOR
OPTO
ISOLATOR
Y+
GND
+5V +10V –10V
POWER
SUPPLY
Figure 1. Block Diagram: SCM9B-3000/4000
151
8 BIT
ADC
12 BIT
DAC
SCALING
OUTPUT +OUT
PROTECT
–OUT
+15V
–15V
Call 800-444-7644
For Information and Assistance
DATAFORTH®
A Burr-Brown Company









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SCM9B-3000 Даташит, Описание, Даташиты
SPECIFICATIONS — SCM9B-3000/4000
(Typical at +25°C and nominal power supply unless otherwise noted).
Analog Output
• Single channel analog output.
Voltage: 0-1V, ±1V, 0-5V, ±5V, 0-10V, ±10V.
Maximum output current: 5mA
Current: 0-20mA, 4-20mA.
Compliance Voltage: 12V
• Output isolation: 500V rms.
• 12-bit output resolution.
• Accuracy (Integral & Differential Nonlinearity): 0.1% FSR (max).
• Zero drift: ±30µV/°C (Voltage Output max).
±0.2µA/°C (Current Output max).
• Span tempco: ±25ppm/°C max.
•1000 conversions per second.
• Settling time to 0.1% FS: 300µs typ (1ms max).
• Output change manual mode (–FS to +FS): 5s.
• Programmable output slope (4000): 0.01V/s (mA/s)
to 10,000V/s (mA/s).
• Current output voltage compliance: 12V.
• Voltage Output drive: 5mA min, 10mA max.
Analog Output Readback (4000)
• 8-bit analog to digital converter.
• Accuracy over temperature (–25 to +70°C): 2.0% FS max.
Digital
• 8-bit CMOS microcomputer.
• Digital scaling and calibration stored in nonvolatile memory.
• Programmable High/Low output limits.
• Programmable data scaling (4000).
• Programmable starting value (4000).
• Programmable watchdog timer provides orderly shutdown in the event of
host failure (4000).
Digital Inputs
• Three digital inputs per module.
• Voltage levels: ±30V without damage.
• Switching levels: High, 3.5V min., Low, 1.0V max.
• Internal pull up resistors for direct switch input.
Specifications are subject to change without notice.
Communications
• Communications in ASCII via RS-232C, RS-485 ports.
• Selectable baud rates: 300, 600, 1200, 2400, 4800, 9600,19200, 38400.
• NRZ asynchronous data format; 1 start bit, 7 data bits, 1 parity bit and 1 stop bit.
• Parity: odd, even, none.
• User selectable channel address.
• ASCII format command/response protocol.
• Up to 124 multidrop modules/host communications port.
• Communications distance up to 10,000 feet (RS-485).
• Can be used with “dumb” terminal.
• All communications setups (address, baud rate, parity)
stored in nonvolatile memory using EEPROM.
• Checksum can be added to any command or response.
Power
• Requirements: Unregulated +10V to +30Vdc, 0.75W max. (Voltage Output),
1.0W max. (Current Output).
• Internal switching regulator.
• Protected against power supply reversals.
Mechanical
• Dimensions: See dimension drawing.
• Case: ABS with captive mounting hardware.
• Connectors: Screw terminal barrier plug (supplied).
Replace with Phoenix MSTB 1.5/10 ST 5.08 or equivalent.
Environmental
• Temperature Range: Operating –25°C to +70°C.
Storage –25°C to +85°C.
• Relative Humidity: 0 to 95% noncondensing.
DATAFORTH® Call 800-444-7644
For Information and Assistance
1 A Burr-Brown Company
152










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