Isolated, Field Configurable Analog Input

6B21

Rev. 0

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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

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

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. 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. 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.