INSTRUCTION MANUAL

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Page 24 Decoder MX620 - MX622, MX630 - MX632 Sound Decoder MX640 - MX648 #156 #157 Selecting a function key for deactivating momentum Selecting a function key for the MAN function Only for non-ZIMO systems that don’t have the MN key. 0 - 19 0 0 - 19 0 3.14 The NMRA-DCC function mapping If a key is assigned through CV #155, a possible assignment through CV #124 is void. CV #155 = 0 doesn’t mean that the F0 key is assigned but rather that the setting in CV #124 is active. Expanding on the settings of CV #124, if another key than F3, F4 or MAN is required for momentum deactivation: CV #156: Defines the function key that deactivates or reduces the acceleration and deceleration times in CV’s #3, 4, 121 and 122. Whether the momentum is deactivated or reduced and by how much is still defined in CV #124, not CV #156: CV #124, Bit 1, 0: = 00: no effect on momentum = 01: removes momentum of CV #121 + #122 = 10: CV #3 + #4 reduced to ¼. = 11: removes all momentum. In order to deactivate all momentum, CV #124 is typically set to a value 3 (the value may be different if other Bits in CV #124 are also set). Assigning a key for momentum deactivation in CV #124 remains inactive if CV #156 > 0. The MAN function (or MAN key on ZIMO cabs) was originally designed for ZIMO applications only, in order to cancel stop and speed limit commands applied by the signal controlled speed influence system (HLU). This function was expanded in later software versions to include “asymmetrical DCC signal stops” (Lenz ABC). If ZIMO decoders are used with non-ZIMO systems, a function key can now be assigned with CV #157 to cancel a signal controlled speed limit or stop command. ZIMO decoders have between 4 and 12 function outputs (FO). Items connected to these outputs (lights, smoke generator etc.) are switched ON and OFF with the function keys of the cab. Which function key controls which function output can be defined with the NMRA’s function mapping CV‘s #33 to #46. Unfortunately, this function mapping also has its limitations (only one 8-Bit register is available for each function, which leaves only 8 outputs to select from) and the headlight is the only function that can be controlled directional. NMRA Function CV Number key on ZIMO cabs Function outputs Function outputs FA12 FA11 FA10 FA9 FA8 FA7 FA6 FA5 FA4 FA3 FA2 FA1 Rear light F0 #33 1 (L) fw 7 6 5 4 3 2 1 0• F0 #34 1 (L) re 7 6 5 4 3 2 1• 0 F1 #35 2 7 6 5 4 3 2• 1 0 F2 #36 3 7 6 5 4 3• 2 1 0 F3 #37 4 7 6 5 4 3 2 1• 0 F4 #38 5 7 6 5 4 3 • 1 0 F5 #39 6 7 6 5 4 3• 2 1 0 F6 #40 7 7 6 5 4• 3 2 1 0 F7 #41 8 7 6 5 4 3 2• 1 0 F8 #42 (-) 9 7 6 5 4 3• 2 1 0 F9 #43 - 1 7 6 5 4• 3 2 1 0 F10 #44 - 2 7 6 5• 4 3 2 1 0 F11 #45 - 3 7 6• 5 4 3 2 1 0 F12 #46 - 4 7• 6 5 4 3 2 1 0 The black dots in the table above indicate the default settings at the time of delivery, where each function key corresponds to the same numbered function output. Therefore, the following values were written to these CV’s by default: CV #33 = 1 CV #34 = 2 CV #35 = 4 CV #36 = 8 CV #37 = 2 CV #38 = 4 CV #39 = 8 CV #40 = 16 and so on.. EXAMPLE of a function mapping modification: The output #4 (FO4) should be switched in addition to output #2 (FO2) with the F2 key (ZIMO #3 key). Outputs #7 (FO7) and #8 (FO8) should be switched (not additionally but instead) with the F3 and F4 keys. The new values to be entered are as follows: CV #36=40 CV #37 = 32 CV #38 = 64 Front light F2 3 #36 7 6 5• 4 3• 2 1 0 F3 4 #37 7 6 5• 4 3 2 1 0 F4 5 # 38 7 6• 5 4 3 2 1 0
Decoder MX620 - MX622, MX630 - MX632 Sound Decoder MX640 - MX648 Page 25 3.15 The extended ZIMO function mapping Since the original NMRA function mapping does not allow for some desired configurations, an extension is offered by ZIMO decoders, which is described on the following pages. Most of these options are related to the special ZIMO CV #61. Note: Some of the CV #61 variations (1, 2, 3…) have been replaced over the years by other more practical applications. The following programming CV #61 = 97 offers an Alternative “function mapping” without left shifts: CV #61 = 97 abolishes the left shift of higher CV’s (#37 and up, according to the original NMRA function mapping), which allows higher function keys to be mapped with lower function outputs (i.e. Function output 1 (FO1) cannot be mapped with function key F4 using the NMRA function mapping, but is possible with the ZIMO extended mapping). FO6 FO5 FO4 FO3 FO2 FO1 Headlight rear front F0 1 (L) fro. #33 7 7 6 5 4 3 2 1 0 • F0 1 (L) re. #34 6 7 6 5 4 3 2 1• 0 5 F1 2 #35 7 6 5 4 3 2• 1 0 7 F2 3 #36 6 7 6 5 4 3 • 2 1 0 F3 4 #37 5 7 6 5 4 • 3 2 1 0 F4 5 #38 7 7 6 5 • 4 3 2 1 0 6 F5 6 #39 7 6 • 5 4 3 2 1 0 5 F6 7 #40 7 • 6 5 4 3 2 1 0 7 F7 8 #41 6 7 6 5 4 3 2 1 0 F8 9 #42 5 7 6 5 4 3 2 1 0 CV #61 = 1 or 2 NMRA Function CV Numerical keys of ZIMO cabs Function outputs FO12 FO11 FO10 FO9 FO8 FO7 FO6 FO5 FO4 FO3 FO2 FO1 Rear light F0 #33 1 (L) forward 7 6 5 4 3 2 1 0• F0 #34 1 (L) reverse 7 6 5 4 3 2 1• 0 F1 #35 2 7 6 5 4 3 2 1 0 F2 #36 3 • 7 6 5 4 3• 2 1 0 F3 4 • • F4 #38 5 7 6 5 4 3 2• 1 0 F5 6 • F6 7 F7 8 • F8 #42 Shift – 9 7 6 5 4 3• 2 1 0 F9 #43 Shift – 1 7 6 5 4• 3 2 1 0 F10 #44 Shift – 2 7 6 5• 4 3 2 1 0 F11 #45 Shift – 3 7 6• 5 4 3 2 1 0 F12 #46 Shift – 4 7• 6 5 4 3 2 1 0 Directions Bit • Typical application: F3 (FO9): Sound ON/OFF, F5 (FO8): Bell, F2 (FO7): Whistle when actuating an external (usually older) sound board. When CV #61 = 1 Front light When CV #61 = 2
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INSTRUCTION MANUAL

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