ProSoft Technology MVI56-BAS - Manual (Page 192)

BASIC CALLs Syntax MVI56-BAS ♦ ControlLogix Platform
User Manual BASIC Module (DB/BAS Compatible)
Page 192 of 234 ProSoft Technology, Inc.
December 13, 2011
CALL 122: Read Remote DF1 PLC Data File
Use CALL 122 to read up to 99 words of data from a remote DF1 node to the
CLX or a MVI56-BAS internal string. For more information about CALL 122
usage (including ladder logic) refer to Using DF1 Protocol Communications.
Syntax:
PUSH [A]
PUSH [B]
PUSH [C]
PUSH [D]
PUSH [E]
PUSH [F]
PUSH [G]
PUSH [H]
PUSH [I]
PUSH [J]
CALL 122
POP [K]
Where:
A = type of PLC READ command, can have one of the following values:
0 = disable the previously executed CALL 122
2 = PLC-2 unprotected READ command (common interface file)
3 = PLC-3 file: word range READ command
5 = PLC-5 file: typed READ command
B = remote DF1 node address
C = file number to be read (between 0 and 255). If sending a PLC-2 unprotected
READ command to a SLC DF1 channel use 9 as the file number.
D = file type. It should have one of the following values:
File Type Code Description Words/Elements Valid Range
ASC(N) Integer File 1 word/element 1 to 99
ASC(S) Status File 1 word/element 1 to 99
ASC(C) Counter File 3 words/element 1 to 33
ASC(T) Timer File 3 words/element 1 to 33
ASC(B) Bit File 1 word/element 1 to 99
ASC(R) Control FIle 3 words/element 1 to 33
ASC(I) Input File 1 word/element 1 to 99
ASC(O) Output File 1 word/element 1 to 99
E = remote file offset
F = number of elements to be transferred. Refer to the table above for the valid
ranges.
G = message time-out. This value is expressed as 0.1s and valid range is
between 1 to 255
H = destination file. The valid values are listed below: