Iniciados Estimating pump flow from current and pressure, then alarming on the residual

Food and beverage plant, CIP supply pumps. Management wants "predictive maintenance" after a pump failed mid-clean and we lost a shift. Only two of…

hace 6 días, 15 horas

Respondidos Línea de envasado 3: prensa, celda robótica, inspección, embalaje y paletizado en un solo dibujo

How far can one drawing go? Our line is about three times this long.

hace 2 semanas, 3 días

Respondidos Grupos de acceso para un equipo de planta, empezando por la pestaña Groups

Did an operators group like this for our packaging line. The Permissions tab on the member page caught a mistake for me, I had…

hace 1 mes

Respondidos ¿Leer un bus multipunto de 9 bits con una pasarela Pi: puede la UART hacerlo?

Kevin, it works. Address byte with mark, data with space, PARMRK on the receive side. Indicators 1, 2 and 4 answered first try, number…

hace 1 mes, 1 semana

Respondidos ¿Leer un bus multipunto de 9 bits con una pasarela Pi: puede la UART hacerlo?

Once a second per indicator is plenty. David, the 9th bit tells every node "this byte is an address, wake up and check if…

hace 1 mes, 1 semana

Iniciados ¿Leer un bus multipunto de 9 bits con una pasarela Pi: puede la UART hacerlo?

Food and beverage plant, old filling line. Four weighing indicators talk on a proprietary RS-485 multidrop bus from the 90s: 9600 baud, 9 data…

hace 1 mes, 1 semana

Respondidos SX1276 in FSK mode: what AFC, AGC, RSSI and FEI do, and why my links fail on cold mornings

TCXO modules exist for exactly this if a probe still misbehaves.

hace 1 mes, 2 semanas

Respondidos Serhat, SCADA drawings and the field side under them

Food plant automation guy here, glad there's someone to ask about drawings. I'll have questions about showing valve states soon.

hace 2 meses, 1 semana