Operator control (hardware)
3.1 Operator control and display elements
Name Function State Meaning
DP2 is defined as an i-slave:
A parameter assignment master is not
present.
Flashing green (0.5 Hz) PROFIBUS channel is ready to
communicate; cyclic communication is
Green PROFIBUS channel is ready to
communicate; cyclic communication is
OPT Option OFF An option board is not inserted in the
D4xx.
Red At least one error is pending on the
inserted option board, or the option
board is not ready.
Flashing green (0.5 Hz) Reason for LED depends on the
option (see description of the relevant
option board).
Green Option is ready to operate.
not taking place (bus status: Clear).
taking place (bus status: Operate).
D4xx
3-4 Manual, 12.2004, 6AU1900-1AJ32-0BA0
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