Hello,

I'm transfering some values with an hmi to LOGO8! using Network Analog Input (NAI). I want to keep the last value on plc, even I turn off the hmi or both them (plc and hmi). In another plc's they have an special i/o responsible to make that, but in LOGO, how can i do this? There's an special memory or something like this that keep the last value sended? 

Hello BalsaAutomação,

In LOGO! there is a retentive memory area, perhaps you can save the data you need to keep as retentive so you do not lose it after power off:

Memory space and circuit program size