6B SERIES BACKPLANES




General Description

The 6B Series backplanes, combined with modules and the 6B50 digital I/O boards, provide a complete data acquisition system. Each backplane incorporates screw terminals for field wiring inputs and outputs, as well as temperature sensors - Model AC1361 - for cold junction compensation (CJC) with thermocouple modules. The communications interface is RS-232C to host computer and bi-directional RS-485 between backplanes. Functional block diagrams of the 16-channel Model 6BP16 backplanes are shown in Figure 1 and Figure 2.

For flexibility in applications, one, four and sixteen channel backplanes are available. These can be ordered with the standard RS-485 interface (-1 type backplanes) or with the optional RS-232C to RS-485 converter (-2 type backplanes). The RS-232C interface allows easy hookup to most computer serial ports, while the bi-directional RS-485 interface can be used for daisy chaining additional backplanes. The RS-485 interface can drive a twisted pair cable up to a maximum of 4000 feet. Figure 3 illustrates a daisy-chain 6B Series Configuration, while Figure 4 illustrates a multidrop configuration.

All 6B Series backplanes require a +5V ±5% regulated power supply for the backplane circuitry as well as the modules. A backplane and power supply (Model 955, 977 or PWR-01) can be mounted on the Model AC1380 19-inch rack mount kit. Complete 6B Series backplane specifications are shown in the tables.

6BP16-1 FBD

Figure 1. Functional Block Diagram Model 6BP16-1

6BP16-2 FBD

Figure 2. Functional Block Diagram Model 6BP16-2

6B DAISY CHAIN

Figure 3. Daisy-Chain 6B Series .Configuration Example

6B MULTIDROP

Figure 4. Multi-Drop 6B Series Configuration Example



Features

Mix and Match 6B Series I/O Module Capability

CE Certified - EMC Directive 89/336/EEC

Configuration Jumper (W1) on all Backplanes

1500 V rms and 2500 V rms (HV) Channel/Channel and Input/Output Isolation

Three Backplane Options : 1-, 4-, 16-Channels

-25°C to +85°C Temperature Range

6B Series Backplane Benefits

Isolation Options - the 6B Series module family offers two isolation levels : 1500 V rms and 2500 V rms (HV). The 6BP01 and 6BP04HV support 2500 V rms input-output/channel-channel isolation. All other backplanes support 1500 V rms.

Configuration Jumper - The configuration jumper (W1) enables changes to the address, baud rate, and checksum of the 6B module installed in the leftmost position of the backplane. When the W1 jumper is installed on power-up, the module is forced into a known address (00H), baud rate (9600), and checksum status (disabled). It is then possible to address the module to verify and change its configuration.

Screw Termination Block - Each channel on a 6B Series backplane has a screw termination block with four screw terminals for connecting transducers. These screw terminals satisfy all transducer and process current outputs.

50 Ω Current Conversion Resistor Socket - To use a 6B11 or 6B12 analog input module to measure process current inputs, a 50 ½ (0.1%) current conversion resistor - Model AC1381 - is inserted into pin sockets provided on each channel.

Shunt Diode - A shunt diode on each 6B Series backplane provides polarity reversal protection to the backplane.

Fuse - a fuse on each 6B Series backplane protects the backplane from damage caused by short circuits or by failure of one of the modules on the backplane.

Status Indicators - Two LEDs indicate the status of the communication lines.

Networking - Multiple backplanes and multiple 6B50 digital I/O boards can be connected in an RS-485 network. A system may be configured with a total of 256 channels - note each 6B module counts as one channel and, each 6B50 digital 24-channel I/O board counts as one channel.

 

6BP01-1

Order Now    Model 6BP01-1

6BP01-2

Order Now    Model 6BP01-2

6BP04-1

Order Now    Model 6BP04-1

6BP04-2

Order Now    Model 6BP04-2

6BP04HV-1

Order Now    Model 6BP04HV-1

6BP04HV-2

Order Now    Model 6BP04HV-2

6BP16-1

Order Now    Model 6BP16-1

6BP16-2

Order Now    Model 6BP16-2



6B Series Single Channel Backplane Specifications

Feature Model 6BP01-1 Model 6BP01-2
Analog Input/Output Channels 1 1
Interface
Communications Input RS-485 RS-232C
   Connector Type Screw Terminals Female DB-25
Communication Output N/A RS-485
   Connector Type N/A Screw Terminals
Cold Junction Temperature Sensor
Number provided on backplane 1 *
Type AC1361 *
Initial Accuracy @ +25°C ±0.25°C (±0.75°C, maximum) *
Accuracy, +5°C to +45°C ±0.5°C (±0.0125°C/°C) *
Configuration Jumper Yes *
Provision For Mounting AC1381 Resistor Yes *
Isolation
Input-to-Output and Power Continuous 2500 V rms, maximum *
Transient ANSI/IEEE C37.90.1-1989 *
Power Supply
Voltage: Operating Passive +5 V dc ±5%
Voltage: Max Safe Limit-with modules +6.5 V dc *
Current N/A 60 mA
Fuse 0.5 Ampere, slow-blow
Littelfuse 251.500
*
*
Mechanical Dimensions 4.25" x 1.37"
(108 mm x 34.80 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 noncondensing *
Specifications same as 6BP01-1.
Specifications subject to change without notice.


6B Series Four Channel Backplane Specifications

Feature Model 6BP04-1 6BP04-2 6BP04HV-1 6BP04HV-2
Analog Input/Output Channels 4 * * *
Interface
Communications Input RS-485 RS-232C * RS-232C
   Connector Type Screw Terminals DB-25 * DB-25
Communication Output RS-485 * * *
   Connector Type Screw Terminals * * *
Cold Junction Temperature Sensor
Number provided on backplane 4 * * *
Type AC1361 * * *
Initial Accuracy @ +25°C ±0.25°C (±0.75°C, maximum) * * *
Accuracy, +5°C to +45°C ±0.5°C (±0.0125°C/°C) * * *
Configuration Jumper Yes * * *
Provision For Mounting AC1381 Resistors Yes * * *
Isolation
Input-to-Output and Power Continuous 1500 V rms, maximum * 2500 V rms,
maximum
**
Transient ANSI/IEEE C37.90.1-1989 * * *
Power Supply
Voltage: Operating +5 V dc ±5% * * *
Voltage: Max Safe Limit-with module +6.5 V dc * +35 V dc **
Overvoltage Protection N/A N/A >6.5 V dc **
Current 60 mA * * *
Fuse 5 Ampere, slow-blow
Littelfuse 251.500
*
*
*
*
*
*
Mechanical Dimensions 3.47" x 6.5"
(90.68 mm x 165 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 noncondensing * * *


6B Series Sixteen Channel Backplane Specifications

Feature Model 6BP16-1 Model 6BP16-2
Analog Input/Output Channels 16 16
Interface
Communications Input RS-485 RS-232C
   Connector Type Screw Terminals Female DB-25
Communication Output RS-485 RS-485
   Connector Type Screw Terminals Screw Terminals
Cold Junction Temperature Sensor
Number provided on backplane 16 *
Type AC1361 *
Initial Accuracy @ +25°C ±0.25°C (±0.75°C, maximum) *
Accuracy, +5°C to +45°C ±0.5°C (±0.0125°C/°C) *
Configuration Jumper Yes *
Provision For Mounting AC1381 Resistors Yes *
Isolation
Input-to-Output and Power Continuous 1500 V rms, maximum *
Transient ANSI/IEEE C37.90.1-1989 *
Power Supply
Voltage: Operating +5 V dc ±5% *
Voltage: Max Safe Limit-with modules +6.5 V dc *
Current 60 mA *
Fuse 5 Ampere, slow-blow
Littelfuse 251.500
*
*
Mechanical Dimensions 3.47" x 17.4"
(90.68 mm x 442 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 noncondensing *
* Specifications same as 6BP16-1.
Specifications subject to change without notice.
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