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參數(shù)資料
| 型號： | SCM9B-4000 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Computer-to-Analog Output Modules |
| 中文描述： | 計算機直接模擬輸出模塊 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 30K |
| 代理商： | SCM9B-4000 |
DATAFORTH
151
Call 800-444-7644
For Information and Assistance
SCM9B-3000/4000 Series
Computer-to-Analog Output Modules
FEATURES
G
ANALOG OUTPUT RANGES: 0-1V,
±
1V, 0-5V,
±
5V, 0-10V,
±
10V,
0-20mA, 4-20mA.
G
COMMUNICATES IN ASCII WITH RS-232 OR RS-485 SERIAL PORTS.
G
PROGRAMMABLE HIGH/LOW OUTPUT LIMITS.
G
500Vrms OUTPUT ISOLATION.
G
12-BIT OUTPUT RESOLUTION.
G
SCALING IN ENGINEERING UNITS.
G
BAUD RATES: 300 TO38,400.
G
NONVOLATILE DIGITAL CALIBRATION.
G
OUTPUT PROTECTION: 240VAC (CURRENT OUTPUT).
±
30V (VOLTAGE OUTPUTS).
G
DIRECT CONNECTION TO‘DUMB’ TERMINALS OR MODEMS.
G
REQUIRES +10 to +30Vdc UNREGULATED SUPPLY.
G
MAY BE LOCATED UP TO10,000 FEET FROM HOST (RS-485).
G
ADDRESSABLE: UP TO124 UNITS PER SERIAL PORT.
G
‘ BUMPLESS’ MANUAL CONTROL INPUTS.
PROGRAMMABLE FEATURES (4000 Series)
(Provides inteligentfeatures notfoundinthe3000 Seres.)
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.
DESCRIPTION
The SCM9B-3000/4000 series are complete computer-to-analog output
interfaces. They are designed to be mounted remotely froma host computer
and communicate, in ASCII, wth 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 mcroprocessor provides an intelligent interface
between the host and the DAC. The 3000/4000 are compatible wth the 1000/
2000 input modules and may be mxed 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 mxed and matched to fit the application. They can be placed remote
fromthe host and fromeach other. You can string up to 124 modules on one
set of wres.
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 wth a purchase
order and is not copy protected.
Figure 1. Bock Dagram SCM9B-3000/4000
POWER
SUPPLY
12 BIT
DAC
–OUT
+15V
–15V
+5V
–10V
+10V
EE Prom
OPTO
ISOLATOR
MICRO-
PROCESSOR
8 BIT
ADC
OUTPUT
PROTECT
SCALING
+OUT
TRANSMIT
RECEIVE
D12
D11/UP*
D10/DN*
Y+
GND
S
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