DeviceNet Slave Communication Module IFD9502
DVP-PLC Application Manual
26
Code
Baud rate
1 19,200
bps
2 38,400
bps
3 57,600
bps
4 115,200
bps
4
LED Indicators & Trouble-shooting
There are 3 LED indicators on IFD9502, Network Status LED, Module Status LED and Scan Port LED, for
displaying the connection status of the communication.
4.1 Network Status LED
LED status
Indication
How to deal with it?
Off
No power;
Duplicating ID has not completed
1. Check the power of IFD9502 and see if the connection is
normal.
2. Check if the node communication on the BUS is normal.
3. Make sure at least 1 node is normally communicating with
the network through IFD9502.
Green light
flashes
Online, but not connected to
DeviceNet
--
Green light on
Online, and connected to DeviceNet
normally
--
Red light
flashes
Online, but I/O connection time-out
occurs.
--
Red light on
Network failure. Failed ID duplication or
Bus-off.
1. Make sure all node addresses on the BUS are not
repeated.
2. Check if the network installation is normal.
3. Check if the baud rate of IFD9502 is consistent with that
of the BUS.
4. Check if the station No. of IFD9502 is valid.
5. Check if your choice of switch on IFD9502 is consistent
with the actual connected equipment.
6. Check if IFD9502 is correctly wired with the equipment.
4.2 Module Status LED
LED status
Indication
How to deal with it?
Off
No power; off-line
Check the power of IFD9502 and see if the connection is
normal.
Green light
flashes
Waiting for I/O data, no I/O data or
PLC program is being edited.
IFD9502 has passed operation test and is waiting for I/O
data
Green light on I/O operation in progress normally.
--
Red light
flashes
Configuration problem; IFD9502 is not
connected to equipment
1. Reset parameters in IFD9502.
2. Check if IFD9502 is correctly wired with the equipment.
Red light on
EEPROM is damaged, or other
hardware error.
Send back to factory for repair.
4.3 Scan Port LED
LED status
Indication
How to deal with it?
Off No
power
Check the power of IFD9502 and see if the connection is
normal.
Green light
flashes
DNA-02 is reading the default value in
the equipment. IFD9502 obtains the
parameters from the equipment and