Table 7-4 Details Of Cpu Unit Module Indications Given Upon Fa Protocol - Hitachi S10mini User Manual

7 TROUBLESHOOTING
[FA protocol errors]
When an error stated in the FA protocol is detected during an FL.NET module operation, the CPU
unit module indicator shows a message as explained in Table 7-4.
The FL.NET module may stop running in compliance with the FA protocol, depending on the
contents of the displayed message.

Table 7-4 Details of CPU Unit Module Indications Given upon FA Protocol

On-screen
Error description
message
LER Network
participation not
completed.
PER FL.NET module
setting error.
ADBL Duplicate common
memory settings.
NDBL Duplicate node
numbers.
TABT Token hold timeout.
Error Occurrence
The FL.NET module has not participated
in the network. Follow applicable
troubleshooting instructions.
The FL.NET module is improperly set.
Check the settings in the module with the
FL.NET setup tool. If any abnormal
setting is found, correct it. If the error
recurs after the setting is corrected, it is
conceivable that the FL.NET module
may be defective. Replace the module.
Common memory settings for the self-
node are the same as for another node.
Compare the self-node common memory
settings with those of the other nodes,
and make necessary corrections to ensure
there are no duplicate node settings.
A node existing in the network uses the
same node number as the FL.NET
module. Confirm the node number
settings for the other nodes and ensure
that there are no duplicate node number
settings.
The preselected token hold time limit has
been exceeded more than three times
repeatedly. It is conceivable that the
FL.NET module may be defective.
Replace the module.
Remedy
7-8
Remarks
Processing is being performed to
ensure that the module
participates in the network.
The common memory settings
for the self-node are all 0.
With "FL.NET For
Windows®," set up the self-
node again.
Network participation is halted
in compliance with the FA link
protocol. Turn the power OFF
and then back ON or make a
participation request with
"FL.NET For Windows®" and
then participate in the network
again.
Network participation is halted
in compliance with the FA link
protocol.