Abdul Wajid

Hello Guys…. Good Day I am working on a PLC project based on redundant system using CPU 1515R with I/O module ET200SP communicating through scalance XC208 managed switch. No issue for project download & input/outputs also working fine. The issue is 1) In online mode, ET200SP module shows error signal as display the error message as “error in lower level component”, infact no error signal shows in connected modules (all I/O RUN LED's are solid ON including ET200SP, but error LED is flashing in interface module but RUN is solid ON). On Server module shows "module functionality error" even after updating the firmware. Firmware of IM155-6 PN/HF is V4.2.2, but my TIA version is V4.2. 2) Redundant switching time or failover time is more than 500ms, running outputs are getting OFF initially. Possibly it would creates problem in any critical system or may damage the equipments such as motors if connected without VFD. Any possibility to reduce the failover time? 3) Any program block to observe the running status of redundant system as well as error code? Any solution for the above scenarios? Does it would create any problem further if the process keeps running in those conditions? Thanks

Thanks Mr. @chelton..... yes, the flow is totalizer..... seems this logic would help me in the project... Thanks once again.

Thank for the response @IO_Rack..... i am using siemens for this application, but i can program in omron also.... but here one point i have.... the indicator should be ON only on moving values for analog/high speed input because the flow method will be manual and indicator should be glowing only if manual valve is open with flowmeter running. In your logic, flowmeter should be reset to switch OFF the indicator. If flowmeter stops (not reset) then indicator should be OFF which will be independent of analog value. Thanks

Hello Guys...... Good Day I am working on a project for tank filling system. Suppose if the filling starts, then the filling indicator should be ON ( panel front) based on flowmeter connected to a filling pipe. If the filling stops, then indicator should be OFF, it means the flowmeter will stop. Flowmeter transmits pulses to the high speed input based on liters Is there any logic to show the filling indicator ON anytime based on flowmeter running? If flowmeter stop then indicator should be OFF. Suppose if we connect device which gives analog input based on flow, would it be possible to show the indication in both cases? Thanks

Thanks moggie for the clarification. was bit confused with start value & monitor value. So it seems like any changes in the program PT values would be directly concerned with monitor value.

Re-initialized means whether i have to click on "load start values as initial value"? After clicking on it, the value which is in DB will get transfer to the monitor value. But we have to click it every time to load the start value if we have to edit the value if required. It seems like this is the only way to change the value. Is there any other way without clicking on load start value? Thanks

Yes, i pressed monitor all button in DB section..... it's not showing the start value in the simulation mode. Actually i need to know how the simulation can be updated as start value? whether it needs the real hardware to store and update it from the counter DB? Thanks

It's not showing any changes in value even triggering stop & start plc simulation again n again. The value would only change from monitor section. It seems like the simulation doesn't show any effect for data block set values. Thanks

Hi... Folks In DB, I have entered PV as 10, but in simulation, it's showing previous value 2 in monitor section. Why it can't able to update as 10? Whether i have to use a real hardware to achieve as required? See the screenshot in simulation mode as uploaded Thanks

Hello Folks I received an error whenever i start programming for SCL in both program section Main OB & FB, can't able to type 'IF' keyword initially and my software gets freeze and received an error message that i have to close the software deliberately. It seems like SCL isn't possible in my software. Can i get any solution for it ? I am using TIA portal V16 Thanks

Thanks guys for the good response... I never thought of adding P_On

Hello Folks Is it possible to add multiple branches in a single network or rung independent of one another in CX- Programmer? It's showing error, but this is possible in Siemens TIA portal & Delta ISP software. Thanks

Thanks for the further info Mr. Suresh...

Thanks Mr. Chelton, that was my silly mistake which i wasn 't aware of.... This seems little bit complex, takes quite more time to understand & re-program for new omron programmer

Thanks Mr. Suresh for the info.... But it seems little bit different than sysmac studio which we can directly enter the floating no. by typing REAL#50.00 and so on.... in the function & FB.