2-1
ENGLISH
Symbols
MODBUS protocol manual
2. SYMBOLS
In the manual and on the device, some instructions are highlighted by symbols to draw the reader’s
attention to the operational dangers.
These symbols are the following:
DANGER!
This warning indicates the possible presence of voltage exceeding 1kV on the marked
terminals (even for short periods).
WARNING!
This warning indicates the possible occurrence of an event which may cause a serious
accident or considerable damage to the device if suitable precautionary countermeasures
are not taken.
ATTENTION!
This warning indicates the possible occurrence of an event which may cause a light accident
or damage to the device if suitable precautionary countermeasures are not taken.
NOTE
This warning indicates important information which must be read carefully.