Backplanes
Features
BB21A backplane is used for starting a new set of I/O modules (when an additional power supply is not required). It has a connector for LB2 cable so you can connect it to the previous set of modules on the DIN rail.
BB21B backplane is used in the middle of a set of connected modules. it can also be used at the end of a set ( allows future expansion of I/O set).
BB21C backplane is used at the end of a set of connected modules. It has a connector for LB2 cable so you can connect it to the next set of I/O modules or Power supply if required
BB21x
Features
BB41B backplane is used for starting a new set of modules on a DIN rail. It has a connector for the LB2 cable, allowing you to connect it to the set of modules on the previous DIN rail. Please note that this BB41B backplane module cannot be used for the first set of I/O modules and cannot be connected to the CPU module.
BB41B backplane is used in the middle of a set of connected modules. It can also be used at the end of a set. This backplane module can also be used for a redundant power supply module.
BB41E backplane is used when the I/O modules need more power than what the previous power supply is supplying in a large rack of I/O modules.This backplane isolates power from the previous modules, providing a new source of power to modules on its right side.
BB41x
Features
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BB61A backplane module is used when do not have any communication modules ( SP04A, M51A etc.) that need to be connected to the left side of the CPU module.
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BB61B backplane module is used in the middle of a set of connected modules. if there are communication modules to be connected to the CPU module then use BB61B module.
BB61R backplane module is used to connect a redundant CPU module to the adjacent main CPU module. Please note that only used when you have the redundant CPU modules side by side.
BB61x
Features
BB81A backplane module is used at the starting position of the modules on the left side of the CPU module for connecting the communication module. If there is no need to connect other communication modules, no modules can be connected to the left side of this module.
BB81B backplane module is used in the middle position for communication module to be connected to the left side of the CPU module. This module can also be used at the starting position for communication modules.
BB81x
Adding IO modules in Brodersen Worksuite
Introduction to LB2 I/O Series
The Brodersen LB2 I/O modules are designed for the RTU32M & RTU32N series. The I/O modules are in two parts, a bottom part containing the backplane bus, and a top part containing the I/O board and logic. All LB2 modules are hot swappable and equipped with a 200 MHz processor to process I/O, handle filtering, SOE, debounce, module clock and general module logic. Diagnostic variables are available for all LB2 I/O modules. Please see the module datasheets for full info.
Module firmware update is handled at the RTU level from the Brodersen WorkSuite.
Use only genuine Brodersen bus cables for connection to Brodersen RTUs and for extension of I/O module blocks. The connection cables for the LB2 backplane bus are designed to meet the power requirements and shielding to run high speed communications. The maximum overall length of a complete system is 40 meters. Each LB2 I/O module & power supply module is calculated as 2 cm. The cables are as the length indicates, e.g. UCC-610/1 count as 100 cm.
The maximum system configuration is 60 I/O modules on one LB2 Bus. If the configuration exceeds 60 I/O modules, an additional CPU is required.