ABB DSDX 451L 5716075-AH Out Expansion Unit

The DMC-18x2 will accept multiple conditions in a single jump statement. The conditional statements are combined in pairs using the operands “&” and “|”. The “&” operand between any two conditions, requires that both statements must be true for the combined statement to be true. The “|” operand between any two conditions, requires that only one statement be true for the combined statement to be true. Note: Each condition must be placed in parentheses for proper evaluation by the controller. In addition, the DMC-18x2 executes operations from left to right. For further information on Mathematical Expressions and the bit-wise operators In this example, this statement will cause the program to jump to the label #TEST if V1 is less than V2 and V3 is less than V4.

Using the JP Command

 If the condition for the JP command is satisfied, the controller branches to the specified label or line number and continues executing commands from this point. If the condition is not satisfied, the controller continues to execute the next commands in sequence.Jump to #Loop if the variable, COUNT, is less than 10 JS #MOVE2,@IN[1]=1 Jump to subroutine #MOVE2 if input 1 is logic level high. After the subroutine MOVE2 is executed, the program sequencer returns to the main program location where the subroutine was called.

Using the IF and ENDIF Commands

 An IF conditional statement is formed by the combination of an IF and ENDIF command. The IF command has as it's arguments one or more conditional statements. If the conditional statement(s) evaluates true, the command interpreter will continue executing commands which follow the IF command. If the conditional statement evaluates false, the controller will ignore commands until the associated ENDIF command is executed OR an ELSE command occurs in the program (see discussion of ELSE command below). Note: An ENDIF command must always be executed for every IF command that has been executed. It is recommended that the user not include jump commands inside IF conditional statements since this causes re-direction of command execution. In this case, the command interpreter may not execute an ENDIF command.

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