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#sprog

John Greenwood All Messages By This Member #240491 I bought a SPROG IIv4 a few months ago. I have just built a MERG Kit 52 and wanted tp program it. I have connected the SPROG up the USB and Pwr lights are on When I ask it to read the CV it comes up cannot connect to Command Station (306) I have put a multimeter on Tr A and Tr B and there is no voltage reading at all at the SPROG end!? Is this correct? ? John Greenwood
Peter Ulvestad All Messages By This Member #240493 Are you trying to program on the programming track or the main? Different preference settings for each? For the programming track, the system connection would be Sprog. For the main, the system connection would be Sprog Command Station. -- Peter Ulvestad Linux Mint 22.1, JMRI 5.11.3plus, Java 21.0.5 JMRI Users Group Moderator ( /g/jmriusers ) JMRI Developers Group Moderator ( ) Tam Valley Group Moderator ( ) Sprog-DCC Group Moderator ( ) Edmonton Model Railroad Association ( )
John Greenwood All Messages By This Member #240494 Peter, The programming track and it is set to Sprog. Having clicked to Read the CV I put the multimeter on Tr a and Tr B and got no reading at all. John Greenwood toggle quoted message Show quoted text On 13/03/2025 20:41, Peter Ulvestad via groups.io wrote: Are you trying to program on the programming track or the main? Different preference settings for each? For the programming track, the system connection would be Sprog. For the main, the system connection would be Sprog Command Station.
Bill Chown All Messages By This Member #240501 The SPROG only turns on the Track Power momentarily during? all the programming activities. This is designed? to ensure that a Programming action on a newly installed or connected decoder will not destroy a wrongly connected decoder. To really see any voltage on the Trk connections, use the Power button on the top of the Roster screen (probably Red right now) to switch it to Green. The SPROG Power light should now flash slowly, and you can see AC voltage on the track connections. Note: most cheap multimeters are not good at showing the actual voltage, but should show something on an AC range. DCC is a square wave AC waveform at higher frequency than AC power from the wall at 50 or 60 Hz, and so is not typically read correctly by normal multimeters. ? But, back up! ? Do you know that the SPROG is correctly connected to your computer? Open the SPROG Console from the SPROG (or similar) menu. You should see several lines of commands, one of which will show the SPROG version. Your computer/JMRI does not know that version, and so has asked the SPROG for it. If you see a version there, your SPROG is in touch, and you can move on to trying to find power! ? Bill ? ?
Mick Moignard All Messages By This Member #240503 开云体育 You don’t connect the SPROG to another DCC system at all, ever. ?It connects to power, computer and track. It IS a DCC system. ?The track is a program track when in JMRI SPROG mode, and a running track when the SPROG connection in JMRI is SPROG Command Station. If you’ve connected the SPROG output to a command station and powered stuff up, you may actually find that now none of it works at all! Mick ________________________________ Mick Moignard Specialising in DCC Sound m: +44 7774 652504 The week may start M,T but it always ends WTF.
John Greenwood All Messages By This Member #240507 开云体育 Mick, I haven't.? It was JMRI saying it could not contact Command Station (306). John Greenwood On 14/03/2025 08:50, Mick Moignard wrote: toggle quoted message Show quoted text You don’t connect the SPROG to another DCC system at all, ever. ?It connects to power, computer and track. It IS a DCC system. ?The track is a program track when in JMRI SPROG mode, and a running track when the SPROG connection in JMRI is SPROG Command Station. If you’ve connected the SPROG output to a command station and powered stuff up, you may actually find that now none of it works at all! Mick ________________________________ Mick Moignard Specialising in DCC Sound m: +44 7774 652504 The week may start M,T but it always ends WTF.
John Greenwood All Messages By This Member #240509 开云体育 Bill, Thank you.? Changed the USB slots around and got it running Thank you for your support. John Greenwood ??? On 14/03/2025 01:19, Bill Chown via groups.io wrote: toggle quoted message Show quoted text The SPROG only turns on the Track Power momentarily during? all the programming activities. This is designed? to ensure that a Programming action on a newly installed or connected decoder will not destroy a wrongly connected decoder. To really see any voltage on the Trk connections, use the Power button on the top of the Roster screen (probably Red right now) to switch it to Green. The SPROG Power light should now flash slowly, and you can see AC voltage on the track connections. Note: most cheap multimeters are not good at showing the actual voltage, but should show something on an AC range. DCC is a square wave AC waveform at higher frequency than AC power from the wall at 50 or 60 Hz, and so is not typically read correctly by normal multimeters. ? But, back up! ? Do you know that the SPROG is correctly connected to your computer? Open the SPROG Console from the SPROG (or similar) menu. You should see several lines of commands, one of which will show the SPROG version. Your computer/JMRI does not know that version, and so has asked the SPROG for it. If you see a version there, your SPROG is in touch, and you can move on to trying to find power! ? Bill ? ?

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