Delta AH500 - Page 423

Chapter 10 DeviceNet Communication Module AH10DNET
10-61
LED status
Indication How to deal with
NS
MS
OFF
Green
light ON
Duplicate ID
detection has not
completed.
Ensure that at least one node and
AH10DNET-5A have the same baud rate
and communicate normally on the network.
Red light
ON
Green
light ON
Duplicate ID
detection failed or
bus-off.
1. Ensure that the node address of
AH10DNET-5A is unique.
2. Repower it.
Red light
ON
Red light
blinking
No network power
1. Check if the network cable connection is
correct.
2. Check if the network power is normal.
Red light
ON
Red light
ON
Hardware error Return it to the factory for repair.
10.10.2 Seven-segment Display Diagnosis
Code
Indication
How to deal with
0~63
Node address of DVPDNET-SL
(in normal operation)
--
80
AH10DNET-5A in STOP status.
Turn the AH500 series CPU module to RUN
and start I/O data exchange.
F0
The node address of
AH10DNET-5A is identical to
that of other node or exceeds
the valid range.
1. Ensure that the node address of
AH10DNET-5A is unique.
2. Repower it after changing its node address.
F1
No slave device is configured in
the scan list of AH10DNET-5A
Configure the slave in the scan list and
download the scan list to AH10DNET-5A.
F2
Excessively low voltage for
AH10DNET-5A
Check if the power supply for AH10DNET-5A
and the AH500 series CPU module is normal.
F3
Entering test mode
Switch IN1 from ON to OFF and repower
AH10DNET-5A.
F4
Bus-off
1. Check if the network cable is normal and the
shielded wire has been grounded.
2. Check if the baud rates of all node equipment
on the network are consistent.
3. Check if both of the two ends of the network
have a 121 Ω resistor.
4. Repower AH10DNET-5A.
F5
No network power
Make sure the cable is correctly connected and
check if the network power is normal.
F6
Internal errors; internal memory
unit errors
If the error still exists after power on again, send
your AH10DNET-5A back to the factory for
repair.
F7
Data exchange unit errors
If the error still exists after power on again, send
your AH10DNET-5A back to the factory for
repair.
F8
Sequence number detection
errors
If the error still exists after power on again, send
your AH10DNET-5A back to the factory for
repair.
F9
An error in reading/writing the
configuration data.
If the error still exists after power on again, send
your AH10DNET-5A back to the factory for
repair.
FA
The node address of
AH10DNET-5A is the same as
that of the slave configured in
the scan list.
Method 1: Reset the node address of
AH10DNET-5A, which must be different from
that of the slave configured in the scan list and
then repower it.