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If command expects a reply it must be addressed so only one slave can reply, otherwise a
collision will happen. In case of success, reply is a binary string, usually consisting of a single
byte. You can convert it to number like this:
-- query status of slave with short address 5 on the internal DALI bus
res, err = dalicmd('internal', 'querystatus', { addrtype = 'short', address = 5 })
-- read ok
if res then
status = res:byte()
end
If command has a value range, params table must have a value field which is an integer in the
specified range. For example, arc command accepts a value from 0 to 254:
-- set level to 42 for all slave on the internal DALI bus
dalicmd('internal', 'arc', { addrtype = 'broadcast', value = 42 })
Setting DTR
For commands where DTR is needed prior to executing command, use setdtr command to set the
value:
-- set dtr for ballast 5 to 200
dalicmd('internal', 'setdtr', { addrtype = 'short', address = 5, value = 200 })
Example (use gateway with id 1, switch all ballasts off, set ballast with short address 5 to full
on)
require('user.dali')
dalicmd(1, 'arc', { addrtype = 'broadcast', value = 0 })
dalicmd(1, 'arc', { addrtype = 'short', address = 5, value = 254 })
Example (set maximum value for ballast 5 to value 200; the ballast is connected on internal
DALi gateway on LogicMachine )
require('user.dali')
dalicmd('internal', 'setdtr', { addrtype = 'short', address = 5, value = 200 })
dalicmd('internal', 'storemax', { addrtype = 'short', address = 5 })
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