Call 94 – display current prt1 port setup, Call 96 – clear prt1 input/output buffers, Example – Rockwell Automation 1746-BAS BASIC LANGUAGE User Manual
Page 174: Purpose, Syntax

Publication 1746-RM001A-US-P
12-24 Output Functions
Example
>1
REM EXAMPLE PROGRAM
>30 PUSH 1 : REM REMOTE NODE ADDRESS = 1
>40 PUSH 0 : REM OFFSET = 0
>50 PUSH 10 : REM WORDLENGTH = 10
>60 PUSH 5 : REM THE TIME-OUT VALUE = 0.5 SECONDS
>70 CALL 93 : REM WRITE DATA FROM BASIC OUTPUT BUFFER
>80 POP R : REM GET THE OUTPUT ARGUMENT
>90 IF R<>0 THEN PRINT READ ERROR CODE = ”,R
READY
>RUN
READ ERROR CODE = 5
READY
>
CALL 94 – Display
Current PRT1 Port Setup
Purpose
Use CALL 94 to display the current PRT1 port configuration on the program port
terminal screen. No arguments are PUSHed or POPped.
Syntax
CALL 94
Example
>CALL 94
19200 Baud
Hardware Handshaking OFF
1 Stop Bit(s)
No Parity
8 Bits/Char
Xon/Xoff
CALL 96 – Clear PRT1
Input/Output Buffers
Purpose
Use CALL 96 to clear port PRT1 input and output buffers. Use the following
PUSHes to clear the corresponding buffer:
•
PUSH 0 to clear the output buffer
•
PUSH 1 to clear the input buffer
•
PUSH 2 to clear both buffers