Data Sheet for Product

Siemens

A6V11160938_en

Smart Infrastructure 2019-04-10

Holding

(16-bit)

No.

Name Description Default R/W

765 Baud rate 1= 9600bps;

2 = 19200bps;

3 = 38400bps;

4 = 57600bps

2 R / W

766 Transmission format (start bit –

data bits – parity – stop bit)

0 = 1-8-E-1;

1 = 1-8-O-1;

2 = 1-8-N-1;

3 = 1-8-N-2

0 R / W

768 Bus configuration command 0 = Ready;

1 = Load;

2 = Discard

0 R / W

Remarks:

● The register number is counted from 1.

● The precondition for valid displays of temperature (register 217) and r.h. (register 218) is

as below:

– Register 221 is enabled.

– Display value “PM2.5 & PM10 in μg/m

” is selected as display format.

– Register values are transmitted from the master.

● In the case of a multiple writing command from the master with invalid values, the sensor

rejects the command with an error notice. The register values remain unchanged.

● Bus configuration command (768) is for on-event addressing only.

● Software version format: major version is 1 byte, minor version is 1 byte and build

version is 2 bytes, such as [2.01.33] = 0x02010021.