Manual
Table Of Contents
- 1. Getting started
- 2. Operation overview
- 3. Connections
- 3.1. Safety instructions
- 3.2. Safe and correct soldering
- 3.3. Avoiding irreparable damage to the decoder!
- 3.4. Pin assignment LD-G-43 | Front side
- 3.5. Pin assignment LD-G-43 | Rear side
- 3.6. Using decoders with interface connectors
- 3.7. Use of the LD-G-43 in locomotives with AC motor
- 3.8. Mounting decoders without interface
- 3.9. Connecting LEDs to the function outputs
- 3.10. Connecting inductive loads
- 3.11. Connecting the switching inputs
- 3.12. Connecting a backup capacitor or buffer circuit
- 3.13. Connection of a SUSI module
- 3.14. Completion
- 4. Programming
- 5. Configuration variables and registers
- 5.1. Overview configuration variables LD-G-43
- 5.2. Basic settings
- 5.3. Setting the address
- 5.4. Setting the motor control
- 5.5. Function mapping
- 5.6. Effects of the outputs
- 5.7. Settings for the switching inputs
- 5.8. RailCom and DCC-A settings
- 5.9. Settings for driving operation
- 5.10. Settings for analogue mode
- 5.11. Sensivity of the overload protection
- 5.12. Auxiliary functions
- 5.13. Information
- 6. Checklist for troubleshooting and error correction
- 7. Technical data
- 8. Warranty, EU conformity & WEEE
tams elektronik
LD-G-43 tams elektronik
2.8. Feedback with RailCom
RailCom transmitter
The locomotive decoder LD-G-43 is a RailCom transmitter and fulfils the requirements of the
RailCommunity standard RCN-217 "RailCom DCC feedback protocol" for mobile decoders
(vehicle decoders).
Sending RailCom messages is possible in layouts with a DCC signal on the rails only. It is not
possible to use the RailCom-function in a pure Motorola environment.
Background information: RailCom-messages of vehicle decoders
In channel 1, the vehicle decoders transmit their DCC address after each DCC command
directed to any vehicle decoder. Channel 1 can be set "dynamically", i.e. the decoder will
only transmit its address in channel 1 until a DCC command is directed to it. This frees the
channel for the messages of other decoders to which no command has yet been sent or
which are not yet known to the system.
In channel 2, vehicle decoders send their feedback as soon as a DCC command is sent to
their address.
Background information: Dynamic RailCom information
"Dynamic information" mean contents of CVs (RailComCVs 64 - 127) which change during
operation (e.g. real speed, reception statistics, tank content). If needed, they are sent by
the decoder spontaneously.
The reception statistics are kept by the vehicle decoder, and reported as number of faulty
data packages in relation to the total number of data packages. These statistics allow
conclusions on the transmission quality between vehicle and rails.
Dynamic RailCom information of the locomotive decoder
The locomotive decoder LD-G-43 can send the following dynamic RailCom information:
reception statistics
2.9. Automatic registration according to RCN-218 (DCC-A)
DCC-A is an automatic registration procedure for DCC, with which the essential characteristics
of a decoder are transmitted to the digital central unit immediately after the vehicle has been
rerouted and are directly available there. The assignment of addresses and the allocation of
functions is thus considerably simplified.
Notes for the use of DCC-A
Prerequisite for the use is the use of a digital central unit that also supports the procedure.
The automatic registration can be deactivated in CV 28. However, for trouble-free operation
with digital central units that do not support DCC-A, it is irrelevant whether the registration
procedure is activated or not.
20 | Operation overview