Rockwell Automation 1746-BAS BASIC LANGUAGE User Manual

Page 199

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Publication 1746-RM001A-US-P

Input Functions 13-9

4.

4.

4.

4. The module places the status in the input file word 1, bits 0-7.

5.

5.

5.

5. The module sets the input file word 0, bit 10 to inform the SLC processor that

valid data is available.

6.

6.

6.

6. The local SLC retrieves the data and status from the buffer and then resets

output file word 0, bit 10 to inform the module that data was received.

7.

7.

7.

7. The module resets the input file word 0, bit 10 on the same end of scan cycle

in which the output file word 0, bit 10 was reset.

The SLC processor must not set, then reset, the output file word 0, bit 10 on the
same ladder logic scan cycle. If this occurs, the module may miss the bit being set.

This CALL is active until it is re-executed with different input parameters.

This CALL has ten input arguments and one output argument.

SLC Processor

SLC Backplane

BASIC or BASIC-T Module

Status Input File

Word 1

Bits 7 through 10

SLC Processor

SLC Backplane

BASIC or BASIC-T Module

Input File

Word 0, Bit 10

SLC Processor

SLC Backplane

BASIC or BASIC-T Module

Reset Output File

Word 0, Bit 10

SLC Processor

SLC Backplane

BASIC or BASIC-T Module

Reset Input File

Word 0, Bit 10

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