ABB LTC745A101

Programming using Automation Builder 

software means that old AC31 user 

applications must be re-written and direct 

import of the old program is not possible. 

Libraries are different and not all features 

are supported. Only PROFIBUS DP Master 

is supported. Same footprint and I/O 

channel position as old AC31 07KT98 CPU.

Under certain conditions, the AC31 adapter I/O 

modules may be used as spare parts for existing 

applications where the previous AC31 modules were 

installed. The AC31 adapter modules can normally 

replace old modules without any changes in the 

configuration or application.

The new module is configured with DIP switches, 

the old one removed, the new one installed and the 

application started again.

The modules have the same footprint, cabling 

position and channel assignment. The AC31 adapter 

module supports most of the previous functionalities of the old module. There are only a few exceptions and minor differences that are listed below:

• The AC31 adapter I/O modules can only be used, 

supported and tested with ABB AC31 master 

devices and cannot run with third party 

controllers.

• The AC31 adapter modules are based on 

standard AC500 I/O modules and on a specific 

electronic base, the modules cannot be purchased 

separately and are always delivered as complete 

devices. The pluggable electronic module cannot 

be replaced separately without the base.

For special applications, further details or 

specific questions regarding compatibility, please 

contact your local sales organization.

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