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GetBytesFromSlave law generic bytes (for example of State), from a slave (Physical forms on the Master or virtual Slaves)Īll commands have codes from 200 to 255, to prevent, in case of errors, IDs and slave types (from 0 to 199) could be interpreted as a command.
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SendBytesToSlave send generic bytes (configuration example), towards a slave (Physical forms on the Master or virtual Slaves) GetValuesFromSlave reads values from the Input Pin of a slave (Physical forms on the Master or virtual Slaves) SendValuesToSlave sends the values to the Output Pin of a slave (Physical forms on the Master or virtual Slaves) (*4) Communication commands to the single slave (*3) Fast communication – the master exchanges the values of all slaves using only one USB Exchange (*2) The command is only used by the master and the slaves Recog during recognition. NN bytes (characters of the name terminated by zero) > see the table of extended verbs <<<<<Įnter sequence number and the request of type Master to Slaves communications (serial line) First byte The value of this resistor is normally from 33 to 330 ohm resistor – The maximum number of bytes that the line bears in cycle time of rice-transmission.īoth the “Master” that the “Slave” are connected to the line with a damping resistor, It also acts as a low pass, radio interference and overvoltage protection. – The maximum current that the “Master” can provide. The maximum number of connectable devices is limited by the following factors: Going over it would exceed the capacity of the USB ’ and would impose unusual features to the connectors. This current, is normally 250 mA, and may be increased up to 500 mA. The maximum current that the Master can provide limits the number and type of devices that can be connected. The tension that the Master provides on line is 5 V, with the same tolerance and with the same maximum current of 5 V that withdrawing from the USB connector. On the communication chain should have a Master (providing power and timing) and a number of devices connected in cascade (called Slave). The connectors are normally used by 3 poli, with spacing of 2.54 mm.
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The transmission takes place on a single wire, but you need a reference mass and a supply voltage, to where the wires are normally three.Īny device that supports DPM must have an input connector (to the Master) and one output to downstream devices (Slaves)