ProSoft Technology ProLinx S3964R Uživatelský manuál stáhnout pdf (Strana 88)

88 Publication LOGIX-AP010B-EN-P - May 2010

Chapter 3 Software Conversions Instructions

RSLogix 5000 software allows for the option of parameters to be passed to

subroutines and also allows for the subroutine to return a result to the calling

routine by using the RET function.

The following RSLogix 5000 example illustrates how the JSR/SBR instructions

can be used to pass parameters to the called subroutine and return a parameter

from the subroutine to the main routine. In this example, the data_word1 value

is passed to the parameter flow1 while the data_word2 value is passed to the

parameter flow2. The called subroutine, Calculation, evaluates the parameter

fault and this value is passed to the parameter out_bit1 in the calling routine.

Instead of using a subroutine, another option is to use the Add-On Instruction

functions as discussed in Chapter 2.

RSLogix 5000 Parameter Passing

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ProSoft Technology ProLinx S3964R Uživatelský manuál Strana 88