Rockwell Automation 1746-BAS BASIC LANGUAGE - Manual (Page 153)

Publication 1746-RM001A-US-P
Output Functions 12-3
2. 2. 2. 2. The ladder logic program of the SLC processor must set the output file word 0,
bit 6 or bit 7 to inform the module that valid data is available. Bit 6 indicates
that data is available for port 1 and bit 7 indicates that data is available for port
2.
3. 3. 3. 3. The module automatically transfers the data to the destination serial port
(PRT1 or PRT2) from the SLC processor.
4. 4. 4. 4. The module sets the input file word 0, bit 6 or bit 7 to inform the SLC
processor that the transfer was successful.
5. 5. 5. 5. The ladder logic program of the SLC processor resets output file word 0, bit 6
or bit 7.
6. 6. 6. 6. The module resets the input file word 0, bit 6 or bit 7 on the same end of scan
cycle in which the output file word 0, bit 6 or bit 7 was reset.
Output File
Word 0, Bit 6
or Bit 7
PORT PRT1
PORT PRT2
SLC Processor SLC Backplane BASIC or BASIC-T Module
BYTE
COUNT
DATA BUFFER
PORT PRT1
PORT PRT2
SLC Processor SLC Backplane BASIC or BASIC-T Module
Input File
Word 0, Bit 6
or Bit 7
SLC Processor SLC Backplane BASIC or BASIC-T Module
Reset Output File
Word 0, Bit 6
or Bit 7
SLC Processor SLC Backplane BASIC or BASIC-T Module
Reset Input File
Word 0, Bit 6
or Bit 7
SLC Processor SLC Backplane BASIC or BASIC-T Module