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6B12ADN/a9avaiSingle Channel Signal Conditioning Module


6B12 ,Single Channel Signal Conditioning ModuleGENERAL DESCRIPTION the 6B12 and 6B12HV modules for address, input range, baud The 6B12 and 6B12HV ..
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6B12
Single Channel Signal Conditioning Module
Isolated, Field Configurable Analog Input Rev. 0
FEATURES
Single-channel isolated signal-conditioning modules.
Accepts outputs from, millivolt, volt and process current
signals.
Complete microcomputer-based data acquisition systems.
Can be remotely reconfigured for various sensor types and
input ranges.

APPLICATIONS
Process Monitoring & Control
Test Stand Automation
Machine Monitoring
Material Testing
Remote Energy Mangement
Laboratory Data Acquisition

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 -25oC to +85oC.
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
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.
FUNCTIONAL BLOCK DIAGRAM

Figure 1. 6B12 & 6B12HV 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. 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.
GENERAL DESCRIPTION
The 6B12 and 6B12HV are single-channel isolated signal-
conditioning modules which receive milli-volt, voltage and
process current signals. Unlike conventional signal conditioners,
the 6B12 and 6B12HV are complete microcomputer-based data
acquisition systems. A major advantage of the on-board
microcontroller is its ability to be reconfigured for various
sensor types and input ranges.
Synchronized Sampling – The synchronized sampling
command allows data to be sampled simultaneously from all
6B11, 6B11HV, 6B12, 6B12HV modules and all 6B50 boards in a
6B Series system. Each module or board stores the data in a
separate register within its microcontroller and can access the
data with a separate command.
Software Configuration – The 6B12 and 6B12HV digitize milli-
volt and voltage ranges from +150 mV to +50 V as well as 0 to
+20 mA process current inputs. Software is used to configure
the 6B12 and 6B12HV modules for address, input range, baud
rate data format, checksum status and integration time. All
programmable parameters are stored in the nonvolatile
memory of the module.
Each analog input signal is conditioned and scaled by a
programmable-gain amplifier and digitized by a 16-bit
integrating converter under microprocessor control. The
digitized value is passed serially across a magnetically isolated
barrier (1500 V rms – Model 6B12, 2500 V rms – Model
6B12HV) and clocked in by a custom controller chip. The on-
board microprocessor then converts the data into engineering
units as determined by the channel parameters. In between
conversions, the microprocessor auto zeros the offset and gain
by monitoring the on-board temperature and compensating for
reference drift. Cold junction compensation (CJC) is also
performed at this stage. The 6B12 and 6B12HV use
compensation factors to ensure the highest accuracy possible.
.
.
Figure 2
Models 6B12 and 6B12HV
Range Description
(Software Configurable)
Accuracy
(Typical)
Error
(Maximum)
Noise
(Peak-to-Peak)

±150 mV ±0.03 % FS ±0.06 % FS ±0.02 % FS
±500 mV ±0.01 % FS ±0.04 % FS ±0.008 % FS
±1 V ±0.006 % FS ±0.03 % FS ±0.007 % FS
±5 V ±0.006 % FS ±0.03 % FS ±0.006 % FS
±10 V ±0.006 % FS ±0.03 % FS ±0.005 % FS
±50 V ±0.006 % FS ±0.03 % FS ±0.004 % FS
±20 mA1 ±0.006 % FS2 ±0.03 % FS2 ±0.007 % FS This range requires the use of a 50 Ω current-to-voltage conversion resistor, model AC1381. 2 Does not include the error of the current-to-voltage input resistor, Model AC1381.
6B12 and 6B12HV Specifications

(typical @ +25°C and Vs = +5 V dc)
Description Model 6B12 and 6B12HV
Inputs, Software Selectable

Voltage Ranges
mV ±150 mV; ±500 mV
Volt ±1 V; ±5 V; ±10 V; ±50 V
Current Range ±20 mA
Communications

Protocol RS-485
Baud Rates, Software Selectable 300K, 600K, 1.2K, 2.4K, 9.6K, 19.2K
Accuracy

Initial @ +25°C Refer to Model Table
Input Offset vs. Temperature ±0.3 µV/°C
Span vs. Temperature ±10 ppm/°C (±50 ppm/°C, maximum)
Input Resistance
1 M Ω
Bandwidth, -3 dB
4 Hz
Conversion Rate
9 samples /second
Synchronized Sampling Command
Yes
Conversion Time 70 ms maximum
Common-Mode Voltage (CMV)

Input-to-Output and Power
Model 6B12 1500 V rms, continuous
Model 6B12HV 2500 V rms, continuous
Common-Mode Rejection (CMR)
Normal Mode Rejection (NMR)
1 k Ω Source Imbalance @ 50/60 Hz 56 dB
Input Protection
240 V rms, continuous
Input Transient Protection
ANSI/IEEE C37.90.1-1989
Power Supply

Voltage, Operating +5 V dc ±5%
Voltage, maximum safe limit +6.5 V dc
Current +100 mA
Mechanical Dimensions
2.3" x 3.1" x 0.79"
(58.4 mm x 78.7 mm x 19.1 mm)
Environmental

Temperature Range
Rated Performance -25°C to +85°C
Operating -25°C to +85°C
Storage -40°C to +85°C
Relative Humidity 0 to 95% @ +60°C non-condensing When used with the CJC temperature sensor, model AC1361, provided on each channel of 6B Series backplanes.
Specifications subject to change without notice.
PIN CONFIGURATIONS AND FUNCTIONAL DESCRIPTIONS
Figure 3 . Model 6B Series Module, with pin-out assignments.
Table 1. Pin Function Descriptions—

Figure 4 6B12 & 6B12HV Input Field Connections
ESD CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human
body and test equipment and can discharge without detection. 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.
OUTLINE DIMENSIONS
Figure 5. Outline Dimensions
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