The “Description” message showcases the sensor serial number and sensor type, this is achieved through command 13 from HART protocol.

 

Command 13 Read: Device Tag, Descriptor, Date Read the Tag, Descriptor, and Date contained within the device. Only the Tag (6 Bytes or 8 Packed ASCII characters) is read here. 

Request Data bytes

    

Index

Type

Description

None

 

Response Data bytes

Index

Type

Description

0-5

Packed

Device Tag (6 Byte as 8 characters Packed ASCII)

6-17

Packed

Descriptor (12 Byte as 16 characters Packed ASCII)

18-20

Date

Date of next/last device action

 

Command specific response codes

Code

Class

Description

0

Success

No Command-Specific Error

16

Error

Access Restricted

32

Error

Busy

 

 

Figure 1. Sensor serial number and sensor Typeal number and sensor Type