Temperature controller software

I need a very easy code for temperature data aquisition, temperature controlling and time/temperature graph drawing. I prefer to use ICP DAS I7000 or I8000 series data aquisition modules or similar modules. The program reads the temperature every 5 minutes from each of 10 refrigerators. Each refrigerator has to have a database of his historical temperatures (time, day, temperature set, temperature read, high level 1, hight level 2, low level 1, low level 2, hysteresys. with the possibility to see it in in graphyc and .xls mode. I accept your suggestions about the language or tools to use. I need inline explanations. The picture represent the tipical input/output module, there are a lot of producers of this kink of modules, i deleted the name of producer form picture. Typical communication between remote input modules to the PC is from wired 485 to USB or RS 232 But i preferer wireless (using wireless 485 wifi converter) because I burned a lot of wired converters because of electric storms. I can evaluate with you... If you already have you can use freeware SCADA software. But I need to have the possibility to modify the software by myself if I will need in future. I ACCEPT YOUR OLD STANDARD SOFTWARE (if you already have written one for temperature monitor and control) the inportant is that I can easily modify it to my custom situation. I can send you the code of my software in java and snapshots of the screens of the program. Thanks