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Locked JMRI not recognizing response to poll request

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My system worked well for close to 20 years, outliving several Windows computers, using RS232 port and JLC Enterprises RS232/RS422 interface card between computer and USIC.? A few months ago the Windows computer I had been using died.? I replaced it with a Windows unit (actually have tried three) that has only USB ports (can't find a computer with RS232 port) so added a USB/RS232 conversion cable to the interface.? I cannot re-establish two way communication.

When running, USIC indicator lights show reception and transmission as OK.? I've disconnected connection to RR and installed loopback testors at both the RS232 and RS422 levels and CMRI Serial Command Monitor shows 'unrecognized rep: "41 50" '.

I can manually, from the computer keyboard, set or reset any output port.? JMRI just responds "unrecognized rep: 41 50" to Poll requests.

Suggestions??????
 

Perhaps you have the C/MRI configuration in JMRI not quite right.

That reply is the letters ¡°AP¡±, which is really unexpected from a C/MRI node.

Is it possible that when you put JMRI on the new hardware that you configured JMRI to look at the wrong COM port?

But then the USIC lights should not show that it¡¯s initialized OK, nor that you can set the output bits properly.

Or when you say "I can manually, from the computer keyboard, set or reset any output port¡±, are you _not_ referring to going through JMRI?

Bob

On Nov 27, 2019, at 3:44 PM, jstein462@... wrote:

My system worked well for close to 20 years, outliving several Windows computers, using RS232 port and JLC Enterprises RS232/RS422 interface card between computer and USIC. A few months ago the Windows computer I had been using died. I replaced it with a Windows unit (actually have tried three) that has only USB ports (can't find a computer with RS232 port) so added a USB/RS232 conversion cable to the interface. I cannot re-establish two way communication.

When running, USIC indicator lights show reception and transmission as OK. I've disconnected connection to RR and installed loopback testors at both the RS232 and RS422 levels and CMRI Serial Command Monitor shows 'unrecognized rep: "41 50" '.

I can manually, from the computer keyboard, set or reset any output port. JMRI just responds "unrecognized rep: 41 50" to Poll requests.

Suggestions??????

--
Bob Jacobsen
rgj1927@...
 

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>>>> My system worked well for close to 20 years, outliving several Windows computers, using RS232 port and JLC Enterprises RS232/RS422 interface card between computer and USIC.? A few months ago the Windows computer I had been using died.? I replaced it with a Windows unit (actually have tried three) that has only USB ports (can't find a computer with RS232 port) so added a USB/RS232 conversion cable to the interface.? I cannot re-establish two-way communication. <<<<

While many contemporary consumer class computers don¡¯t have a visible serial port, many of the mother boards still have a serial interface available to them.? Neither of my last two tower systems had a serial port on them.? On the first of these I ordered a serial adapter card to be added to the system, using one of the expansion slots on the mother board.? I had a call from the tech doing the assembly and configuration. He pointed out that the serial port existed on the mother board, and instead of the serial adapter card taking up an expansion slot, a cheaper cable could be used to connect the port on the mother board to a knockout on the back of the tower case ¨C saved me $10.00.

In this case, the computer builder was Hard Drives Northwest in Bellevue, WA.? Similar build to spec companies can be found everywhere.? It wouldn¡¯t hurt to ask at the big box stores, either.

Best regards,

Steve

Steve Haas

Snoqualmie, WA

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