Datasheet

Page 32 - 51029066EN/BB
4. Troubleshooting
Problem
The diagnostic LED 6
remains always OFF.
The diagnostic LED 6
remains always ON.
JBUS/RS232 communication is
not operational.
JBUS/RS485 communication is
not operational.
The access of the configuration
menu is impossible.
Probable cause
The card is not supplied
with power.
The card is blocked.
- Communication
parameters are not
correct.
- The RS232 connection
is faulty.
- Communication
parameters are not
correct.
- The RS485 connection
is faulty.
- The maintenance
mode is not activated.
- The RS232 connection
is faulty.
Remedy
- Check that the card is correctly inserted and secured in its slot,
- Check that the system is energised,
- Remove the card and install it again.
- Check that the push button 7 is released (not pressed),
- Remove the card and install it again.
- Wait 2 minutes after power on or card restart.
- Check that the RS485 4 and RS232 5 ports are not both connected.
- Check that the Rx/Tx 3 jumper position is in accordance with the serial
cable used (see §2.3).
- Check that the communication parameters used by the JBUS master
application are in accordance with the card parameters.
- Check the link with the default parameters (see §2.2).
- Wait 2 minutes after power on or card restart.
- Check that the RS485 4 and RS232 5 ports are not both connected.
- Check that the polarity and termination are corrects regarding the card
position in the RS485 network (see §2.4).
- Check that the communication parameters used by the JBUS master
application are in accordance with the card parameters.
- Check the link with the default parameters (see §2.2).
- Validate the communication parameters by checking the card in point to point
RS232 link.
- Check the position of the SA1 2 switches (see §2.1)
- Check that the Rx/Tx 3 jumper position is in accordance with the serial
cable used (see §2.3).
- Check the terminal settings: 9600 bauds, even, 7 data bits, 1 stop bit,
- Press the push button 7 more than 3 seconds.