Our club has a C/MRI maxi-node with a SUSIC, eight DOUT24 output cards four DIN 24 input cards.
It is connected to a Lubuntu 18.04 system using a two port 16550 based RS-232 serial card.
While I was working with the layout editor to sequence the signals some time ago, everything was working fine.
Then my attention was diverted to other projects.
Recently, I noticed most of the signals were held at 'stop' and many of the block detectors were shown as 'active' in JMRI despite nothing in the blocks.? I don't know when the problem started.
After installing an SSD as the system drive, I have been unable to get JMRI to properly connect to the maxi-node.
The results of my troubleshooting are as follows:
1/ Lubuntu serial connection to C/MRI
- JMRI 4.13.5
- no activity on RX or TX indicators on SUSIC
- slow flash on green 'heartbeat' indicator on SUSIC
- C/MRI Monitor shows repeating sequence of INIT's followed by several polls.
2/ WIndows 10 laptop with USB - RS-232 connection to C/MRI (connected at computer end of cable)
- JMRI 4.12
- RX and TX indicators active
- slow flash on green 'heartbeat' indicator on SUSIC
- able to set signal aspects
- all sensors show as 'unknown'
- C/MRI Monitor shows repeated polls without replies and signal aspect messages when signal table value changed
3/ Lubuntu with connection via USB - RS-323 adapter to C/MRI (as in 2 above)
- reverted to JMRI 4.12
- RX and TX indicators on SUSIC active
- slow flash on green 'heartbeat' indicator on SUSIC
- able to set signal aspects
- all sensors show as 'unknown'
- C/MRI Monitor shows repeated polls without replies and signal aspect messages when signal table value changed
Any suggestions on resolving this problem would be appreciated.
Tom
