Technical data

Manual – MOVI-PLC® advanced DH.41B Controller
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Installing the MOVI-PLC® advanced DHF41B control card
Assembly / Installation Notes
3.4.5 Operating displays of the MOVI-PLC
®
advanced DHF41B control card
LED 11, 12 LEDs 11 and 12 are reserved.
BUS-OFF (L13)
LED
The BUS-OFF LED indicates the physical status of the bus node.
BIO LED (L14) The BIO LED (bit strobe I/O) checks the bit-strobe I/O connection.
The LEDS that are identical to those of DHE41B are described in section 3.3.6.
State Status Meaning
Off NO ERROR The number of bus errors is in the normal range (error
active status).
Flashing red
(125 ms cycle)
BUS WARNING
The unit is performing a DUP-MAC check and cannot
send any messages because no other stations are
connected to the bus (error passive state).
Flashing red
(1 s cycle)
The number of physical bus errors is too high. No more
error telegrams are actively written to the bus (error pas-
sive state).
Lights up red BUS ERROR • BusOff state
• The number of physical bus errors has increased
despite a switch to the error-passive state. Access to
the bus is deactivated.
Lights up
yellow
POWER OFF External voltage supply has been turned off or is not
connected.
State Status Meaning
Flashing
green
(125 ms cycle)
DUP-MAC check Unit is performing DUP-MAC check
Off Not switched on / offline but
not DUP-MAC check
• Unit is offline
• Unit is switched off
Flashing
green
(1 s cycle)
Online and in operational
mode
• Unit is online
• DUP MAC check performed successfully
• A BIO connection is being established with a master
(configuring state)
• Missing, incorrect or incomplete configuration
Green light Online, in operational mode
and connected
•Online
• A BIO connection has been established (established
state)
Flashing red
(1 s cycle)
Minor fault or connection
timeout
• A correctable error has occurred
• Bit-strobe I/O connection is in timeout state
Lights up red Critical fault or critical link
failure
• An error that cannot be remedied has occurred
•BusOff
• DUP-MAC check has detected an error