On Dec 19, 2019, at 11:46 AM, JerryG via Groups.Io <jerryg2003@...> wrote:
when a turnout is set up as pulsed, JMRI uses the opposite bits from when it is set up as steady state.. It seems as if it is using the two bits in the opposite order (although I might have found a different reason below):
- turnout set up as 2-bit pulsed: when JMRI sends CMRI bit 0=1, tt (turnout table) displays Closed; when sends CMRI bit 1=1, tt displays Thrown
- turnout set up as 2-bit steady state: when JMRI sends CMRI bit 0=1, tt displays Thrown; when sends CMRI bit 1=1, tt displays Closed. [This way doesn't make sense to me, but I'll let the monitor speak for itself...]
This is intentional. It¡¯s due to the recommended wiring in Dr. Chubb¡¯s C/MRI book. The two-bit-steady form uses the two lines to drive + and - to the turnout motor without any additional active electronics. That removes the implied inversion that e.g. an SMC board provides.
Bob
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Bob Jacobsen
rgj1927@...
Bob Jacobsen