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DMX – RECEIVE - STATS Menu
The DMX-RECEIVE-STATS menu is used to display numerous DMX receive parameters. The
parameters displayed relate only to received DMX with start code defined in DMX-RECEIVE-STATUS.
Keys operate as follows:
LEFT and RIGHT Not used.
UP and DOWN Select the required parameter.
ENTER Clears previously captured data.
FUNCT Select the required parameter.
USER 3 second press to add or remove this menu from the shortcut list.
The parameters are:
Parameter Description Legal
Min Legal
Max
Refresh The Refresh Rate is expressed in Hz and represents the
number of DMX frames per second. 1Hz 44Hz*
1
Period The time between two consecutive DMX packets (of
the same start code). 1196us*
2
1s
Data Slots The number of Data Slots is also called number of
channels. It is the number of bytes in addition to the
Start Code that are contained in the DMX packet. 0 512
Break The Break is the synchronization that indicates the
start of DMX packet. 88us 1s*
3
MaB The MaB or Mark after Break is the idle period
between the end of Break and the Start Code. 8us 1s*
3
ISD The ISD is the inter-slot delay. This is the idle time
between the slots in the DMX packet. 0us 1s*
3
MbB The MbB or Mark before Break is the idle period
between the end of the last data slot and the next
packet’s Break.
0us 1s*
3
*
1
This is the maximum refresh rate for packets containing a full 512 data slot payload.
*
2
This is allowed, but rarely seen. It can only be achieved with a packet containing 24 or less data slots.
*
3
The 1s maximum is actually for the entire packet.
When would I use this?
If a DMX transmitter is suspected of sending bad timing, this function allows you to capture and
analyse that timing.
Refresh Hz
Cur: 44
Min: 43
Max: 44