15.4 Operations Mode Programming
Operations mode programming lets you program CVs in DCC locomotives
equipped with Extended Packet Format (EPF) decoders while they are on the
mainline. A typical use for Ops mode programming would be to change the
acceleration rate (CV03) or the deceleration rate (CV04) of your locomotives
to simulate the weight and braking capability of the train to compensate for
changing the number of cars or power units on a train.
Your DT400 can use ops mode programming to change the CV value in ANY
CV, including 2 digit and 4 digit addresses. All Digitrax Decoders that allow
Ops mode programming can have their addresses changed with Ops mode pro-
gramming. There are many decoders that are not able to use this feature. If you
want to use Ops mode to change 4 digit addresses, please see the special sec-
tion below.
Ops mode programming can be performed by any DT400 at any time since the
throttles are not competing for usage of the single programming track.
Radio throttles do not need to be plugged in to LocoNet during Ops Mode
Programming. When you enter programming mode with a radio throttle,
Ops mode is the only programming mode that will be available unless you
plug in to LocoNet. IR throttles must be plugged in during Ops Mode
Programming.
How to use Operations Mode Programming To Program CVs other than 4
digit address.
1. Select the DCC loco address that you want to program on either the L
or R Throttle. Be sure that the address you want to program is the
active throttle, the one with the blinking smoke when you enter pro-
gramming mode.
2. Enter Program Mode by pressing the PROG Key
to enter pro-
gramming mode. The display will show the last CV and CV Value
you programmed.
3. Select ops mode programming mode by pressing the PROG Key
until the “Po” appears in the Mode Indicator area of the LCD. If you
are using an infrared or radio throttle, the display will automatically
show Po. The DT400 display will show the address that was select-
ed on the active throttle in the right side of the bottom line of the
display. This is the address that you are preparing to program.
P R O G
P R O G
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