Technical data
28
Manual – MOVI-PLC® advanced DH.41B Controller
3
Installing the MOVI-PLC® advanced DHF41B control card
Assembly / Installation Notes
PIO LED (L15) The PIO LED (polled I/O) checks the polled I/O connection.
Mod/Net LED
(L16)
The functionality of the Mod/Net LED (module/network status) described in the following
table is contained in the DeviceNet specification.
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 polled I/O connection is being established with a
master (configuring state)
• Missing, incorrect or incomplete configuration
Green light Online, in operational mode
and connected
•Online
• A polled I/O connection has been established (estab-
lished state)
Flashing red
(1 s cycle)
Minor fault or connection
timeout
• A correctable error has occurred
• Polled I/O connection is in timeout status
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
State Status Meaning
Off Not switched on / OffLine • Unit is offline
• Unit performs DUP MAC check
• Unit is switched off
Flashing
green
(1 s cycle)
Online and in operational
mode
• The unit is online and no connection has been
established
• DUP MAC check performed successfully
• A connection has not yet been established with a
master
• Missing, incorrect or incomplete configuration
Green light Online, in operational mode
and connected
•Online
• Connection has been established with a master
• Connection is active (established state)
Flashing red
(1 s cycle)
Minor fault or connection
timeout
• A correctable error has occurred
• Polled I/O or/and bit-strobe I/O connection are in
timeout status
• DUP-MAC check has detected an error
Lights up red Critical fault or critical link
failure
• A correctable error has occurred
•BusOff
• DUP-MAC check has detected an error