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DeviceNet Slave Communication Module DVPDT02-H2
DVP-PLC Application Manual
20
6 LED Indicators & Trouble-shooting
There are 3 LED indicators on DVPDT02-H2. POWER indicator displays the status of working power. NS
indicator and MS indicator display the connection status of the communication.
6.1 POWER LED
LED status Indication How to correct
Off Power is abnormal.
Check the power of DVPDT02-H2 and DVP-EH2
PLC MPU.
Green light On Power is normal. --
6.2 NS LED
LED status Indication How to correct
Off
No power, or DVPDT02-H2
has not completed the
Dup_MAC_ID test yet.
1. Check the power of DVPDT02-H2 and see if
the connection is normal.
2. Check if the node communication on the bus is
normal.
3. Make sure at least one or more nodes on the
network are operational at the same time.
4. Check if the baud rate of DVPDT02-H2 is the
same as that of other nodes.
Green light flashes
DVPDT02-H2 is on-line but
has not established
connections to other nodes.
1. Correctly configure it in the master.
2. Re-download the configured data to the master
and set the master to RUN status.
Green light On
DVPDT02-H2 is on-line and
isnormally connected to the
master.
--
Red light flashes
DVPDT02-H2 is on-line, but
I/O connections are timed-out.
1. Check if the network connection is normal.
2. Check if the master operates normally.
Red ligh On
The communication is down;
MAC ID is repeated; no
network power; bus-off.
1. Make sure all the node addresses on the bus
are not repeated.
2. Check if the network installation is normal.
3. Check if the baud rate of DVPDT02-H2 is
consistent with that of other nodes on the
network.
4. Check if the node address of DVPDT02-H2 is
a valid one.
5. Check if the network power is normal.
6.3 MS LED
LED status Indication How to correct
Off No power or off-line.
Check the power of DVPDT02-H2 and see if the
connection is normal.
Green light flashes
Waiting for I/O data; no I/O
data; DVPDT02-H2 in STOP
status.
Switch DVPDT02-H2 to RUN status to start I/O
data exchange.
Green light On I/O data are normal. --
Red light flashes Configuration problem
1. Reset DVPDT02-H2.
2. Re-power DVPDT02-H2.