Device for determining and / or monitoring a chemical or physical process variable in automation technology

摘要

Device for determining and / or monitoring a chemical or physical process variable in automation technology with a superordinate control unit (1), an electronic converter (2) with a first interface (3), a second interface (4), a third interface (8), an imaging logic (M) and a plurality of data source components (F1, F2, ..., Fn), wherein the converter electronics (2) communicates via the first interface (3) with the higher-level control unit (1) via a bus protocol, which is wherein the bus protocol is the Modbus protocol, wherein the converter electronics (2) via the second interface (4) with an operating unit (5) is connectable, wherein the converter electronics (2) via the third interface (8) with at least one of the data source Components (F1, F2, ..., Fn) is connectable, wherein the mapping logic (M) corresponding data channels (11a, 11b, ..., 11n) via corresponding assignment rules (6a, 6b, ..., 6n) with the connected data source components (F1, F2, ..., Fn), and wherein the individual assignment rules (6a, 6b, ..., 6n) via the operating unit (5) depending on the connected data sources- Components (F1, F2, ..., Fn) are addressable and adjustable, so that from data (C1, C2, .. Cn) selected data elements (D1, D2, ..., Dx) of each connected data source components ( F1, F2, ... Fn) can be transmitted simultaneously to at least one telegram to the higher-level control unit (1), wherein the Modbus protocol is configured in such a way that it selects selected main and secondary variables of the data (C1, F2) via the operating unit (5). C2, ..., Cn) of the individual data source components (F1, F2, ..., Fn) are addressed in a linear address space (A1, A2, ..., An), wherein contiguous data (C1, C2,. .., Cn) are also contiguously addressable, wherein the mapping logic (M) one of the data source components (F1, F2, ..., Fn) selects, and the Fig iedungslogik (M) a data element (D1, D2, ..., Dx) from the associated data (C1, C2, ..., Cn) selects which these selected data source components (F1, F2, ..., Fn ), the third interface (8) being associated with the data channels (11a, 11b, ..., 11n) for the data source components (F1, F2, ..., Fn), the mapping logic (M) being associated with Data channels (11a, 11b, ..., 11n) via the assignment rules (6a, 6b, ..., 6n) with the connected data source components (F1, F1, ..., Fn) connects and wherein the assignment rules (6a , 6b, ... 6n) are addressable and adjustable via the operating unit (5) and the mapping logic (M).