Dear All,

I am migrating Simatic Step7 5.5 to TIA portal V14 SP1. In Simatic Step7 5.5 CPU used is CPU315-2 PN/DP and I am migrating this to CPU1515-2 PN.

Most of the logic is migrated but below logic is not migrating 

I required solution urgently for this. Please if someone know the solution, please reply me.

Thanks & Regards

Kiran Patil

kiran p

=     #rlo

L     P#DBX 0.0

L     #timer_number

SLW   4

OD

LAR1

OPN   "tmr"

A     #rlo

=     DBX [AR1,P#0.6]

A     DBX [AR1,P#0.7]

SAVE

Here "rlo" is defined as temp of Boolean type and  timer_number as a input Integer type. And opening the DB "tmr" (Here I used DB6). After migrating (= #rlo) instruction is not working with TIA  V14 SP1 for CPU1515-2 PN.

Read this chapter from Online Help of the TIAP :  

Basically it's not possible to transfer registers (like RLO) from a caller to a callee, when callee has not empty interface in case of S7-1500. The code tries to read the RLO when it's in undefined state.

Solution is to use explicit input variable to transfer RLO value instead the register.

AutoGen_3010114

Can you post a screenshot of what it looks like after the migration? What line does not work?

kiran p

 

AutoGen_3010114

Can you post a screenshot of what it looks like after the migration? What line does not work?

 

I don't have idea explicit input variable, please can you send any example backup or can you briefly explain in details. Do you have manual for indirect addressing for CPU-1500? 

jacek d

 

kiran p

=     #rlo

L     P#DBX 0.0

L     #timer_number

SLW   4

OD

LAR1

OPN   "tmr"

A     #rlo

=     DBX [AR1,P#0.6]

A     DBX [AR1,P#0.7]

SAVE

Here "rlo" is defined as temp of Boolean type and  timer_number as a input Integer type. And opening the DB "tmr" (Here I used DB6). After migrating (= #rlo) instruction is not working with TIA  V14 SP1 for CPU1515-2 PN.

Read this chapter from Online Help of the TIAP :  

Parameter assignment via registers during block call in STL

Basically it's not possible to transfer registers (like RLO) from a caller to a callee, when callee has not empty interface in case of S7-1500. The code tries to read the RLO when it's in undefined state.

Solution is to use explicit input variable to transfer RLO value instead the register.

jacek d

Move your rlo var from temp to input area and aassign this input with RLO when calling the function.

 Thanks for your support. I have one more problem. In simatic manager 5.5 below logic is working(It is also working for CPU300 in TIA portal). But same instruction is not working for CPU-1500. Below is the logic

Here FC1 is called in brackets with AND operation. It is working for CPU-300 but it is not working for CPU-1500. It is giving error that "The RLO is not initiated. Access is invalid." Please let me know any solution for this.

And in CPU300 I can switch from one language to other like STL to Ladder or FBD and also from Ladder or FBD to STL. But in CPU-1500 I am not able to switch language from STL to FBD or ladder and also from FBD or ladder to STL. Any other settings are there in CPU-1500 for language switching.

//----FC ITSELF
note: add I_Timer_Input to Inputs

//----FC CALL

note: BTmp is a bool Temp Variable.

note: add Timer_Input to the INPUTS section of your FC
and substitute RLO bit with the I_Timer_Input