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ProSoft Technology MVI56-BAS User Manual

Page 122

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BASIC CALLs Syntax

MVI56-BAS ♦ ControlLogix Platform

User Manual

BASIC Module (DB/BAS Compatible)

Page 122 of 234

ProSoft Technology, Inc.

December 13, 2011

CALL 120: Clear Module Input and Output Buffers

Use CALL 120 to clear the module input and output buffers.

Syntax:

PUSH A
CALL 120

Where:
A is an 8-bit argument that corresponds to the module input and output buffers,

as shown in the following table.

Bit

Decimal
Equivalent

Module Input and Output Buffer Area

0

1

Data transferred from the CLX using Message instruction

1

2

Data read by the CLX using MSG instruction

2

4

CLX Output Image

3

8

CLX Input Image

4

16

Common Interface Input File

5

32

Common Interface Output File

6

Not Used

7

Not Used

Example:

.
.
.
125 PUSH 63: CALL 120
.
.
.