Videolarm ddw10cr2 ユーザーガイド

4

30H - 38H

bit0 (lsb) Auto Iris; 0 = auto, 1 = manual

bit1 Camera power; 0 = off, 1 = on

bit2 Lens speed; 0 = slow; 1 = fast

bit3 Comm. error; 0 = no, 1 = yes

bit4 - bit7  = 0011.

5

“A”

Upper case “A”

6

30H - 31H

bit0 (lsb) aux output; 0 = off, 1 = on

7

Terminator and 

Checksum

80H - 8FH Most significant nibble is always 8.  Least significant (LS) nibble is the XOR of all 

previous bytes (LS nibble only) except for leading autobaud character F8H.

FUNCTION

Byte #3

Byte #4

DESCRIPTION

REQUEST SENSOR DATA

“S”

“?”

Get pressure and temperature data.

The response to this command is shown in the table below:

BYTE

DATA

DESCRIPTION

1

F8H

Autobaud character

2

Address in hex

Camera address (01H - DFH)

3

“S”

Upper case “S”

4

P1 (MS nibble) 30H 

- 3FH

Pressure data is 30H ored with data nibble

P07, P06, P05, P04 of pressure data.

5

P0 (LS nibble)

30H - 3FH

Pressure data is 30H ored with data nibble

P03, P02, P01, P00 of pressure data.

6

T1 (MS nibble)

30H - 3FH

Temperature data is 30H ored with data nibble

T07, T06, T05, T04 of temperature data.

7

T0 (LS nibble)

30H - 3FH

Temperature data is 30H ored with data nibble

T03, T02, T01, T00 of temperature data.

8

Terminator and 

Checksum

80H - 8FH Most significant nibble is always 8.  Least significant (LS) nibble is the XOR of all 

previous bytes (LS nibble only) except for leading autobaud character F8H.