说明： Part of Libnodave, a free communication libray for Siemens S7 200/300/400 via
the MPI adapter 6ES7 972-0CA22-0XAC
or MPI adapter 6ES7 972-0CA23-0XAC
or TS adapter 6ES7 972-0CA33-0XAC
or MPI adapter 6ES7 972-0CA11-0XAC,
IBH/MHJ-NetLink or CPs 243, 343 and 443
or VIPA Speed7 with builtin ethernet support.
