transfer rate: 9.6 kBaud, 8 data bits, 1 stop bit, no
parity, flow control: none (half duplex mode).

Programming Guide

11.1 Transfer Modes

The unit’s serial interface is either RS232 or RS485, depending on the model.

Settings:

There are two possible transfer modes for the serial interface:

Poll Mode: By user interface control, a parameter will be set or requested.

Burst Mode: A pre‐defined data string (“burst string“) will be transferred as fast as possible as long as the burst mode is activated. The data will be transferred in one direction only, from the unit to the user interface.

V=P

“P“ starts the Poll mode (allows to request or to set

 

parameters)

V=B

“B“ starts the Burst mode (data will be transferred as

 

fast as possible; necessary: data string definition –

 

“Burst string“)

$=UTIE

“$“ sets the parameter combination (“burst string“)

 

“U“ unit (°C or °F)

 

“T“ temperature value

 

“I“ internal temperature of the sensing head

 

“E“ emissivity

?X$

gives the burst string parameters while in poll mode

Return from the burst mode to the poll mode:

If the poll mode shall be activated while the burst mode is still active, send a character and within the following 3 seconds the command V=P.

MI

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RayTek MI Miniature Infrared Sensor operating instructions Programming Guide Transfer Modes, Settings