mongodb - How can a MQTT/HTTP Client function block in Structured Text(IEC 61131-3) be created? -
i insert documents mongodb(where server present) using structured text programming collects data plc. since there no driver available, how can create http client function block , connect database?
also, can connect mongodb using st there rest api available?
you have note maker , model of plc vendors have own interpretation of iec spec, , have in documentation. have included function blocks handle sockets , like, , not. believe have hard time getting work, , suggest comment above does, create application on server fetches data plc instead of trying send plc. st pretty limited compared high level languages, , chances able find library fits plc.
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