MohammedKayed
Member
Hi guys
I'm new in PLCs and tia portal program, I want to make a project about GreenHouse controlled by a plc so I used tia portal program to start and learn the basics on , at now my project consist of one plc ( s7-1500 ) and one and HMI then I am going to expand it to scada system ,the problem I am facing now that is I have a value in the memory of plc (MW1)
tagged as temperature , then I used I/O field on the hmi and connect the field to the tag which contain this value with no problem but when I start the simulation this value doesn't appear ? why ?
I'm new in PLCs and tia portal program, I want to make a project about GreenHouse controlled by a plc so I used tia portal program to start and learn the basics on , at now my project consist of one plc ( s7-1500 ) and one and HMI then I am going to expand it to scada system ,the problem I am facing now that is I have a value in the memory of plc (MW1)
tagged as temperature , then I used I/O field on the hmi and connect the field to the tag which contain this value with no problem but when I start the simulation this value doesn't appear ? why ?