Rockwell Automation 1746-BAS-T SLC 500 Basic Basic-T Modules - Manual (Page 64)

Publication 1746-UM004B-EN-P - December 2005
4-16 Programming Overview
For more information regarding the use of these commands, refer to
the BASIC Language Reference Manual, publication 1747-RM001.
Transfer Data Between the SLC Processor and Port PRT1
Use port PRT1 to interface the module with external devices sending
ASCII code. The commands in the following table are used to transfer
data either to or from port PRT1.
Figure 4.4 Data Flow Between the SLC Processor and Port PRT1 of the Module
In addition, the commands in the following table provide status of and
control over the data transfer between the SLC processor and port
PRT1 of the module.
CALL 114 Initiates DF1 packet transmission.
CALL 115 Checks DF1 packet transmission status.
CALL 117 Gets DF1 packet length.
CALL 119 Resets port parameters back to their default settings.
Command Purpose
Command Purpose
PRINT@ Prints a string or variable to PRT1.
INPUT@ Inputs a string or variable from PRT1.
INPL@ Inputs a string or variable from PRT1.
INPS@ Inputs a string or variable from PRT1.
GET@ Reads a console input device connected to PRT1.
CALL 22 Transfers data from PRT1 or PRT2 to the SLC I/O or M files.
CALL 23 Transfers data from the SLC I/O or M files to PRT1 or PRT2.
SLC Processor
PRINT@
INPUT@
INPL@
INPS@
GET@
PRT1 OUTPUT QUEUE
PRT1 INPUT QUEUE
256 bytes
256 bytes
PORT PRT1
CALL 23
CALL 22
1746-BAS or 1746-BAS-T Module