dmx_basics:dmx_timing
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| dmx_basics:dmx_timing [2012/01/09 06:02] – Jan_K | dmx_basics:dmx_timing [2013/03/11 03:45] (current) – external edit 127.0.0.1 | ||
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| DMX512 sends packages of up to 512 frames with 8 bit data to fixtures.\\ | DMX512 sends packages of up to 512 frames with 8 bit data to fixtures.\\ | ||
| Normally only the used addresses are send which means if only up to address 10 are used, only 10 frames are send.\\ | Normally only the used addresses are send which means if only up to address 10 are used, only 10 frames are send.\\ | ||
| - | The max number of frame that can be send is 512. (Start + 511)\\ | + | The max number of frame that can be send is 512. (Start |
| + | Start Frame or Address 0 is a sync frame that can't be addressed on the fixtures.\\ | ||
| The packet don’t contain address information but the address is the frame position in the packet and therefore all frames up to the last frame are to be send each time.\\ | The packet don’t contain address information but the address is the frame position in the packet and therefore all frames up to the last frame are to be send each time.\\ | ||
| To synchronize all receivers to the transmitter, | To synchronize all receivers to the transmitter, | ||
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| nd = not defined.\\ | nd = not defined.\\ | ||
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| - | A full packet containing 512 frames (Start | + | A full packet containing 512 frames (Start |
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| - | Break + MAB + (Star Code + MTBF) + 511*(Frames + MTBF) + MTBP idle\\ | + | Break + MAB + (Start Frame + MTBF) + 511*(Frames + MTBF) + MTBP idle\\ |
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| The shortest full pack will then be\\ | The shortest full pack will then be\\ | ||
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| Sometimes words like DMX 1024 and DMX 128 pops up.\\ | Sometimes words like DMX 1024 and DMX 128 pops up.\\ | ||
| DMX 1024 means that there are 2 universes, DMX512, running in parallel.\\ | DMX 1024 means that there are 2 universes, DMX512, running in parallel.\\ | ||
| - | DMX 128 means that only up to 128 channel are send. (Start + 127)\\ | + | DMX 128 means that only up to 128 channel are send. (Start |
| On the fixture side this means nothing they all run DMX512 and in the DMX1024 system there will be 2 physical connection available each running DMX512.\\ | On the fixture side this means nothing they all run DMX512 and in the DMX1024 system there will be 2 physical connection available each running DMX512.\\ | ||
| - | The DMX128 means that in practice only addresses up to 127 can be used.\\ | + | The DMX128 means that in practice only addresses up to 127 can be used because address 0 is the start sync and it is not a legal address on the fixture.\\ |
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dmx_basics/dmx_timing.1326088962.txt.gz · Last modified: 2013/03/11 02:57 (external edit)