ABB 57360001-KM 1 DSMD 122 Thermal resistance card

User Data When the side-connect interface is utilized, the read and write data is moved between the module and the processor without any ladder logic. The size of the data area and position of the data areas in the module's database is determined by the parameters set in the configuration file. When the block transfer interface is used, ladder logic is required to page the data between the module and the processor. The size of the data area and position of the data areas in the module's database is determined by the parameters set in the configuration file.

The read data area should be set 

to match the value entered in the Read Register Count parameter of the IEC103M.CFG file. For ease of use, this array should be dimensioned as an even increment of 60 words. This data is paged up to 60 words at a time from the module to the processor. The Read Data task is responsible for placing the data received into the proper position in the read data array. Use this data for status and control in the ladder logic of the processor. The write data area should be set to match the value entered in the Write Register Count parameter of the IEC103M.CFG file. For ease of use, this array should be dimensioned as even increments of 60 words. This data is paged up to 60 words at a time from the processor to the module. The Write Data task is responsible for placing the write data into the output image for transfer to the module. This data is passed from the processor to the module for status and control information for use in other nodes on the network.

Event Message Data

 A user file to hold event messages passed to the processor from the master driver must be constructed if the message pass-through feature is enabled. These data blocks are passed to the processor with a block identification code of 9903. It is the responsibility of the ladder logic to read the data and place the data into the user data file. When the side-connect interface is utilized, the ladder logic should set the first word of the event file to 0 after processing the data. Command Control Data This data area passes control information from the processor to the module. Refer to the command control section in this document for a complete description of the format used for these data blocks.

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