User guide

Err. no. Description Error name
120 no STX in the write message ERR_NO_STX
121 number INT faulty ERR_INT_ANZ
122 number REAL faulty ERR_REAL_ANZ
123 faulty access type ERR_ZUGRIFF
124 no config level ERR_WR_NO_CONF
125 local operation ERR_WR_LOCAL
126 error FI switch-over ERR_WR_FU_UM
Standard protocol
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