Programming Track
Your MTH PS3.0-equipped HO engine can function on Programming Track
outputs from DCC systems. Because each DCC system manufacturer's output
capabilities on the Programming Track differ it is recommended that you use a
DCC Programming Track Booster to perform functions on the programming
track. Simply put – try to program or read back the address of an MTH engine on
a programming track. If you can read/write the address then you won't need a
Programming Track Booster. If your DCC system can't read/write then you will
likely need a Programming Track booster. There are a few different manufacturers
of these boosters. Your local dealer can provide you with more information on
these boosters. MTH has used the DCC Specialties Power Pax with some success.
Note – An alternative to writing on a Programming Track is to simply Program on
the Main (PoM). MTH engines support PoM to write any CV on the main.
However, read back is not supported on the main. Check with your DCC system's
manufacturer to see about any limitations they may have to PoM.
DCC Bit Value Decoder
So, in the above example you simply add up the values in the “Decimal Value” row
– 128+64+0+16+8 +0+0+1 = 217. You would write 217 to the CV you were altering.
The above applies to any CV. Also, if you have a CV that already has a value
assigned that you do not want to alter but need to make additions to it, for example
CV29, you would simply add the additional bits you enabled to the existing value to
obtain the new CV value.
For example, if you had a consist address (CV19) set to 5 and you wanted to alter
this to show an engine reversed in the consist you would need to set bit 7 (decimal
value = 128) for the engine you want to reverse. To do this - take 128 (the new bit
you want to set) + 5 (the existing bit that you do not want to alter) = 133. You
would then write a value of 133 to CV19.
M.T.H. HO 4-8-4 GS-4/ GS-6 Steam Engine
38
Decimal
Value
128
0
16
0
0
1
64
8
Example Value (bit 7 -> bit 0) 11011001
Binary
Example
1 (on)
Bit
(Decimal
Value)
7 (128)
5 (32)
4 (16)
3 (8)
2 (4)
1 (2)
0 (1)
6 (64)
1 (on)
1 (on)
1 (on)
1 (on)
1 (on)
0 (off)
0 (off)
0 (off)
