ProSoft Technology MVI56-BAS - Manual (Page 195)

MVI56-BAS ♦ ControlLogix Platform BASIC CALLs Syntax
BASIC Module (DB/BAS Compatible) User Manual
ProSoft Technology, Inc. Page 195 of 234
December 13, 2011

0 = CLX input image file

1 = CLX MSG instruction

2 = internal string
If number 2 is selected (internal string) the best technique is to use CALL 29 after
CALL 123 in order to transfer the string. Using CALL 29 does not require ladder
logic to transfer data.
I = word offset within the source file. If the CLX input image file is the selected as
the source file, the offset cannot be 0 or 1 because these are reserved words.
J = string number. If the destination file is not an internal string this value is
ignored.
K = CALL 123 status code:

0 = successful setup

1 = disabled

2 = bad input parameter

3 = DF1 not enabled

4 = string too small

5 = string not dimensioned
CALL 123 copies the transfer status code to the CLX input image file 1. A value 0
indicates that the transaction was successful.
Example:
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50 PUSH 5,200,2,4,4,10: CALL 108
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90 PUSH 5,0,7,ASC(N),0,20,10,1,0,0: CALL 123: POP STATUS
100 IF(STATUS<>0) THEN PRINT "Unsuccessful CALL 123 Setup"
110 REM CALL 123 remains active as long as BASIC
120 REM continues to RUN.
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