Siemens SITRANS F US - Page 44

HART Communications
4.1 Universal HART Commands
F US Clamp-on Communications Protocol Manual
42 Hardware Installation Manual, 11/2015, A5E34981613-AC
Table 4- 16 Command 17 - Write Message
Description
Byte
Format
Comments/Value
Message
0-23
Packed
<32 ASCII Characters>
Table 4- 17 Command 18 - Write Tag, Descriptor, Date
Description
Byte
Format
Comments/Value
Tag
0-5
Packed
<8 ASCII Characters>
Descriptor
6-17
Packed
<16 ASCII Characters>
Date
18-20
Date
<Date Code>
Table 4- 18 Command 19 - Write Final Assembly Number
Description
Byte
Format
Comments/Value
Final Assembly Number
0-2
U-24
Table 4- 19 Command 20 - Read Log Tag
Description
Byte
Format
Comments/Value
Long Tag
0-31
Latin-1
<write Long Tag CMD 22>
Table 4- 20 Command 21 - Read Unique Identifier Associated with Long Tag
Description
Byte
Response
Comments/Value
“254” 0 FE
Device Type
1-2
F9F9
Comm Card
Minimum number of Preambles
3
5
HART Protocol Major Revision Number
4
7
Device Revision Level
5
Software Revision Level
6
Hardware Revision Level 7 <5 most significant bits>
Physical Signaling Code 7 0 <3 least significant bits>
A5E31571875A
Flags
8
See Common table 11
Device ID
9-11
<unique ID for each >
Minimum number of preambles
12
Maximum number of Device Variables
13
Configuration Change Counter
14-15
<increments with each write>
Extended Field Device Status
16
See Common table 17
Manufacturer Identification Code
17-18
002A
Siemens
Private Label Distribution Code
19-20
002A
Siemens
Device Profile
21
01
Process Automation Device