Communication
TCD Electronics | Function Manual | Version: TCD_PROFI_S_EN_200326_E003
13
3.8.
Acyclic communication
Acyclic Addressing
Each parameter in a PROFIBUS slave is mapped to an address specified by slot and index. The slot number
refers to an array of data. The index tells you where in the array the data you want starts.
Slot
Index Range
Block
0
16…68
Physical block
1
16…37
Analog input block - Mass flow
68…138
Transducer block
2
16…37
Analog input block - Density
3
16…37
Analog input block - Medium Temperature
4
16…32
Totalizer block 1
5
16…32
Totalizer block 2
6
16…37
Analog input block - Volume Flow
7
16…37
Fraction Flow A block (Manufacturer Specific)
8
16…37
Fraction Flow B block (Manufacturer Specific)
9
16…37
Fraction Flow % A block (Manufacturer Specific)
10
16…37
Fraction Flow % B block (Manufacturer Specific)
11
16…37
Analog input block - Standard volume flow
12
16…37
Analog input block - Frame temperature
13
16…32
Totalizer block 3
14
16…19
Binary commands (Manufacturer Specific)
15
16…33
Dosing block (Manufacturer Specific)
30
…
255 Used for direct access of MODBUS registers.
Tab. 2: Acyclic data
3.8.1.
Slot 0, Physical Block
Index Parameter name
Data type
[size]
Access Annotation
16
BLOCK_OBJECT
DS-32
Read
only
Constant block information
17
CURRENT_MODE
Unsigned8
Read
only
Follows the target mode
8: Automatic
128: Out of service
22
TARGET_MODE
Unsigned8
Read
Write
Desired device mode that is taken over by the
CURRENT‐
MODE parameter:
Coding:
8: Automatic
128: Out of service, sets all function blocks into out
of service
23
OrderID
Visible-
String(20)
Read
only
Order ID no.
24
Software_Revision
Visible-
String(20)
Read
only
String representation of the product firmware
version