Modbus Holding Registers Tables - Siemens SITRANS F Series Operating Instructions Manual
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Also See for SITRANS F Series:
- Operating instructions manual (362 pages) ,
- Quick start manual (220 pages) ,
- Manual (188 pages)
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Modbus communication
B.3 Modbus holding registers tables
Response
Slave address
Function
Sub-function Hi
Sub-function Lo
Data Hi
Data Lo
:
Data Hi
Data Lo
CRC
Example: Read Return Slave Message Count (address 529)
Query: 1,8,0,14,0,0,129,200
Slave address = 1 (0x01)
Function = 8 (0x08)
Sub-function Hi, Lo = 0, 14 (0x00,0x0E)
Data Hi, Lo = 0, 0 (0x00,0x00)
CRC = 129,200 (0x81, 0xC8)
Sub-function 0x000E = 14 = Read Return Slave Message Count
Response: 1,8,0,14,0,97,64,32
Slave address = 1 (0x01)
Function = 8 (0x08)
Sub-function Hi, Lo = 0, 14 (0x00,0x0E)
Data Hi, Lo = 0, 97 (0x00,0x65)
CRC = 64,32 (0x41, 0xE3)
Read Return Slave Message Count = 0x0065 = 97 message received
B.3
Modbus holding registers tables
In the following the Modbus RTU holding registers available for the device are described.
Note
All Write parameters require password access.
Table B-1
Process values
Modbus ad‐
Data type /
dress
Size [bytes]
3000
float / 4
3002
float / 4
3004
float / 4
192
Parameter
Description
Mass flow
Measured mass flow
Volume flow
Measured volume flow
Density
Measured density
1 byte
1 byte
1 byte
1 byte
1 byte
1 byte
:
1 byte
1 byte
2 bytes
Default value
Value range
[unit]
- [kg/s]
-
- [m
/s]
-
3
- [kg/m
]
-
3
Operating Instructions, 06/2018, A5E44036384-AA
Access
level
Read Only
Read Only
Read Only
FC310 (From firmware 4.0)
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