6B21 Analog Devices Inc, 6B21 Datasheet

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6B21

Manufacturer Part Number
6B21
Description
Manufacturer
Analog Devices Inc
Datasheet

Specifications of 6B21

Lead Free Status / RoHS Status
Not Compliant
FEATURES
Module accepts commands from the host computer and
converts it into an isolated process current suitable for
interfacing with valves and actuators.
Complete microcomputer-based data acquisition systems.
Output range can be selected to either a 0 to 20 mA or 4 mA
to 20 mA process current.
APPLICATIONS
Process Monitoring & Control
Test Stand Automation
Machine Monitoring
Remote Energy Mangement
PRODUCT OVERVIEW
The 6B Series delivers sensor-to-host signal-conditioning for
remote applications. Software-configurable for a wide variety of
sensor types, including: analog input, analog output, and digital
I/O, the 6B Series is intended for remote data acquisition,
machine monitoring, remote energy management and process
monitoring and control applications.
Including transformer-based isolation, ranging, linearization,
A/d conversion and RS-232C/RS-485 serial communication for
up to 256 channels per serial port, the 6B Series modules and
boards are a complete, low-cost interface between computers
and analog signals.
All 6B Series input/output modules are fully encapsulated and
identical in pin-out and size, facilitating their ability to be mixed
and matched with all other 6B Series modules on the same
backplane. The 6B Series is fully rated over the industrial
temperature range of -25
Each 6B Series module and board is a complete
microcontroller-based process monitoring and control system,
with all calibration, address and linearizing parameters stored in
non-volatile memory. Being microcontroller-based, 6b Series
modules can be configured for various sensor types, including
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
Material Testing
Laboratory Data Acquisition
o
C to +85
o
C.
Isolated, Field Configurable Analog Input
RTD and thermocouple, and a wide variety of input ranges. This
reduces the number of different modules that need to be used
in a given application and carried in inventory.
Designed for industrial applications, the 6B Series modules
incorporate transformer-based isolation with surface-mount
manufacturing technology – providing increased reliability at
low cost. The compact, rugged 6B Series analog modules can be
mixed and matched on a 16-channel backplane for high density,
remote process monitoring and control.
Communications between backplanes, modules and host is in
ASCII over an RS-232C link or RS-485 bi-directional serial bus.
Circuitry to convert RS-232C to RS485 is built into the 6B
backplane. Baud rates are software programmable, with speeds
up to 19.2 K Baud.
The 6B Series digital subsystem communication is compatible
with the overall 6B Series communication protocol. Each digital
I/O board can be configured for its address, baud rate and
checksum status. Connection to the 16 and 24-channel solid
state relay backplanes is by a 50-conductor ribbon cable. This
enables interfacing with input and outputs from 4 V to 240 V.
Power control modules are also available that can switch up to
3A and come with a variety of ratings for low voltage DC up to
280 VAC.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
FUNCTIONAL BLOCK DIAGRAM
Figure 1. 6B21 Functional Block Diagram
© 2004 Analog Devices, Inc. All rights reserved.
www.analog.com
6B21

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6B21 Summary of contents

Page 1

... FUNCTIONAL BLOCK DIAGRAM Figure 1. 6B21 Functional Block Diagram Designed for industrial applications, the 6B Series modules incorporate transformer-based isolation with surface-mount manufacturing technology – providing increased reliability at low cost ...

Page 2

... The output range can be selected to either process current electrically and mechanically compatible with the 6B Series input modules and backplanes. The 6B21 takes a command from the host computer and converts it into an isolated process current suitable for interfacing with valves and actuators. The 6B21 offers a normal mode output protection of 240 V rms as well as 1500 V rms CMV isolation ...

Page 3

... Hz 100 samples/second ±0.1% Full Scale Range Output Slew Rate 0.125 mA/sec to 128 mA/sec Common-Mode Voltage (CMV) 1500 V rms continuous Common Mode Rejection (CMR) 108 dB 240 V rms, continuous ANSI/IEEE C37.90.1-1989 Rev Page 6B21 Accuracy (Maximum) ±0.05 % FSR ±0.05 %FSR Model 6B21 ...

Page 4

... Full Scale Range ±5 µA/°C ±200 ppm/°C ±0.5% Full Scale Range ±0.5% Full Scale Range Power Supply + ±5% +6 +250 mA 2.3" x 3.1" x 0.79" (58 78 19.1 mm) Environmental -25°C to +85°C -25°C to +85°C -40°C to +85° 95% @ +60°C, non-condensing Rev Page 6B21 ...

Page 5

... Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Figure 4 6B21Input Field Connections Rev Page 6B21 ...

Page 6

... OUTLINE DIMENSIONS Figure 5. Outline Dimensions Rev Page 6B21 ...

Page 7

... NOTES Rev Page 6B21 ...

Page 8

... NOTES © 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective companies. D05166-0-9/04(0) Rev Page 6B21 ...

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