Rockwell Automation 1771-DB BASIC MODULE - Manual (Page 279)

Chapter
Call Routines 69–127 13
13 -21
Syntax
PUSH remote device node address
PUSH remote device file number
PUSH remote device file type
PUSH starting element offset (x2) of remote device file
PUSH number of elements to be transferred
PUSH message time-out value
CALL 90
POP status of message instruction
Example
>10 PUSH 1 : REM REMOTE NODE ADDRESS = 1
>20 PUSH 5 : REM REMOTE FILE 5
>30 PUSH ASC(C) : REM FILE TYPE = COUNTER
>40 PUSH 0 : REM OFFSET = 0
>50 PUSH 10 : REM ELEMENT LENGTH = 10 = 30 WORDS
>60 PUSH 5 : REM TIME-OUT = 0.5 SECONDS
>70 CALL 90
>80 POP R : REM GET THE OUTPUT ARGUMENT
>90 IF (R<>0) THEN PRINT “READ ERROR CODE =”,R
READY
>RUN
READ ERROR CODE = 5