ADLINK PXES-2590 User Manual

Page 52

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42

Monitoring/Control

Functions

*Read Fan Speed 1 (command 0x20)

Reads the Fan Speed 1 Reading.

Use the SMB 1 Send Byte and 2 Receive Byte to Read this
word data:

Data format is as follows:

*Read Fan Speed 2 (command 0x22)

Reads the Fan Speed 2 Reading.

Use the SMB 1 Send Byte and 2 Receive Byte to Read this
word data:

Data format is as follows:

SMB

Dir

Offset

Value

Description

Send Byte

>

0

SA

Slave address

>

1

0x20

Command code

Receive Byte

>

2

SA

Slave address

<

3

0-255

Low byte data

Receive Byte

>

4

SA

Slave address

<

5

0-255

High byte data

Bit

Description

15..0

Fan 1 Speed. Unsigned 16-bit data, the LSB is 1 rpm

SMB

Dir

Offset

Value

Description

Send Byte

>

0

SA

Slave address

>

1

0x22

Command code

Receive Byte

>

2

SA

Slave address

<

3

0-255

Low byte data

Receive Byte

>

4

SA

Slave address

<

5

0-255

High byte data

Bit

Description

15..0

Fan 2 Speed. Unsigned 16-bit data, the LSB is 1 rpm

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