NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
DIN EN 61131-9 ; VDE 0411-509:2015-02 [CURRENT] references following documents:
| Document number | Edition | Title |
|---|---|---|
| ISO/IEC 7498-1 | 1994-11 | Information technology - Open Systems Interconnection - Basic reference model: The basic model More |
