How to read robot signals with Siemens S7-1500-EEWORLD

Collect

Method 1

DPRD_DAT: Read consistent data of a DP standard slave

This instruction applies to central modules as well as DP standard slaves and PROFINET IO devices.

The following data types can be used: BOOL, BYTE, CHAR, WCHAR, WORD, LWORD, DWORD, INT, UINT, USINT, SINT, LINT, ULINT, DINT, UDINT, REAL, LREAL. These data types can also be used in data structures of type ARRAY or STRUCT.

o The data types STRING and WSTRING are not supported.

o Supports PLC data types (UDT) and system data types.

• If no errors are sent during data transmission, the read data are entered into the target range defined in the RECORD parameter .

DPWR_DAT: Write consistent data to a DP standard slave

The "DPWR_DAT" instruction transfers the data from the RECORD parameter consistently to the central module or the addressed module of a DP standard slave/PROFINET IO device and, if necessary, to the process image (eg if the address range of the affected DP standard slaves is the same as that of the process image).

Method 2

Reading robot signal

Direct batch reading in the PLC variable table through the UDT data type: ST_Rob_A

Safety signal batch reading

Send robot signal:

Variable table via UDT: ST_Rob_E

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