Python wrapper for TwinCAT ADS library
Project description
This is a python wrapper for TwinCATs ADS library. It provides python functions for communicating with TwinCAT devices. pyads uses the C API AdsDLL.dll. The documentation for the ADS API is available on infosys.beckhoff.com.
Some Samples
open port, set port number to 801
>>> port = adsPortOpen()
>>> adr = adsGetLocalAddress()
>>> adr.setPort(PORT_SPS1)set ADS-state and machine-state
>>> adsSyncWriteControlReq(adr, ADSSTATE_STOP, 0, 0)read bit %MX100.0, toggle it and write back to plc
>>> data = adsSyncReadReq(adr, INDEXGROUP_MEMORYBIT, 100*8 + 0, PLCTYPE_BOOL)
>>> adsSyncWriteReq(adr, INDEXGROUP_MEMORYBIT, 100*8 + 0, not data)write an UDINT value to MW0 and read it from plc
>>> adsSyncWriteReq(adr, INDEXGROUP_MEMORYBYTE, 0, 65536, PLCTYPE_UDINT)
>>> adsSyncReadReq(adr, INDEXGROUP_MEMORYBYTE, 0, PLCTYPE_UDINT)write a string value in MW0 and read it from plc
>>> adsSyncWriteReq(adr, INDEXGROUP_MEMORYBYTE, 0, "Hallo, wie geht es?", PLCTYPE_STRING)
>>> adsSyncReadReq(adr, INDEXGROUP_MEMORY_BYTE, 0, PLCTYPE_STRING)read a value of type real from global variable foo
>>> adsSyncReadByName(adr, ".foo", PLCTYPE_REAL)write a value of type real to global variable bar
>>> adsSyncWriteByName(adr, ".bar", 1.234, PLCTYPE_REAL)close port
>>> adsPortClose()Release history Release notifications | RSS feed
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pyads-1.3.0.zip
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