Impulse SCM9B-5000 Series - Manual

SCM9B
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Isolated Intelligent Signal Conditioning Products
SCM9B
SCM9B-5000 Series
Four Channel Sensor-to-Computer Modules
Description
The SCM9B-5000 Four Channel Sensor-to-Computer Modules are a family
of complete solutions designed for data acquisition systems based on personal
computers and other processor-based equipment with standard serial I/O ports.
The modules convert four analog input signals to engineering units and transmit
in ASCII format to any host with standard RS-485 or RS-232C ports. These
modules can measure temperature, voltage, and current. The modules provide
direct connection to a wide variety of sensors and perform all signal conditioning,
scaling, linearization, and conversion to engineering units.
Each channel of the SCM9B-5000 Series can be independently programmed
by the user for zero, span, and filter, to scale linear input signals such as millivolts
and milliamps to desired engineering units such as pounds or percent of full scale.
The SCM9B-5000 modules are easy to use. With these modules, anyone
familiar with a personal computer can construct a data acquisition system. This
modular approach to data acquisition is extremely flexible, easy to use, and
cost effective. Data is acquired on a per channel basis so you only buy as many
channels as you need. The modules can be mixed and matched to fit the
application. They can be placed remote from the host and from each other.
The modules contain no pots or switches to be set. Features such as address,
baud rate, parity, echo, and scaling are selectable using simple commands
over the communications port—without requiring access to the module. The
selections are stored in nonvolatile EEPROM which maintains data even after
power is removed.
The 5000 series is completely hardware and software-compatible with the 1000,
2000, 3000 and 4000 series and may be mixed in any combination.
All modules are supplied with removable screw-terminal connectors and captive
mounting hardware. The connectors allow system expansion, reconfiguration
or repair without disturbing field wiring.
Although software is not required, utility software (S1000) is available on IBM-
compatible diskette to make the 5000 easier to learn and use.
Figure 1: SCM9B-5000 Block Diagram
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Features
• Four Analog Input Channels
• Complete Sensor to RS-485 or RS-232
Interface
• ASCII Format Command/Response Protocol
• 500Vrms Analog Input Isolation
• 15 Bit Measurement Resolution
• Continuous Self-calibration; No Adjustments of
Any Kind
• Programmable Digital Filter
• Requires +10V to +30VDC Unregulated Supply
• Transient Suppression on RS-485
Communications Lines
• Screw Terminal Plug Connectors Supplied
• Mix and Match with Single-Channel Units on
Same Backpanel
• CE Compliant
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Applications
• Process Monitoring and Control
• Remote Data Logging to any Host Computer
• Product Testing
• Direct Connection to Modems