Troubleshooting - Panasonic KT7 Instruction Manual

9. Troubleshooting

If any malfunctions occur, refer to the following items after checking the power supply to the master
and the slave.
• Problem: Communication failure
The connection or wiring of communication is not secure.
Burnout or imperfect contact on the communication cable and the connector.
Communication speed of the slave does not coincide with that of the master.
The data bit, parity and stop bit of the master do not accord with those of the slave.
The instrument number of the slave does not coincide with that of the command.
The instrument numbers are duplicated in multiple slaves.
When communicating without using communication converter, make sure that the program is
appropriate for the transmission timing.
• Problem: Although communication is occurring, the response is 'exception code'.
Check that a non-existent command code has not been sent.
The setting command data exceeds the setting range of the slave.
The controller cannot be set when functions such as AT is performing.
The operation mode is under the front keypad operation setting mode.
For further inquiries, please consult our agency or the shop where you purchased the unit.
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This product has been developed / produced for industrial use only.
Check the following
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