Data Mapping
For acyclic DP-V1 access, a mechanism based on slot or index and length addressing is implemented in the LTMT main unit.
Slot |
Index |
Read/Write |
Description |
---|---|---|---|
1 |
0 |
Read |
Diagnostic Data |
1 |
1 |
Read |
Input Data |
1 |
2 |
Read/Write |
Output Data |
1 |
3 |
Read |
Measurement and Monitoring Data |
1 |
4 |
Read |
Statistic Data |
1 |
5 |
Read/Write |
Current Protection Settings |
1 |
6 |
Read/Write |
Voltage Protection Settings |
1 |
7 |
Read/Write |
Motor Control Function Settings |
1 |
8 |
Read/Write |
Digital Input Interlock Protection Settings |
1 |
9 |
Read/Write |
General Settings |
1 |
10 |
Read/Write |
Communication Parameters |
1 |
11–17 |
Read |
Trip Logs |
1 |
18–24 |
Read |
Event Logs |
1 |
25–26 |
Read |
Detected Internal Error Logs |
1 |
27 |
Read |
Digital Inputs Settings |
1 |
28 |
Read/Write |
Digital Output Settings |
1 |
29 |
Read/Write |
Hysteresis Settings |
1 |
30–32 |
Read/Write |
Motor Start Logs |
1 |
33 |
Read |
Status Data |
1 |
34 |
Read |
Reserved |
1 |
35 |
Read |
Reserved |
1 |
36 |
Read/Write |
Reserved |
Table Format
The PROFIBUS DP data tables have the following columns:
Slot | Index |
Byte offset |
Size (in bytes) |
Byte.Bit |
RW |
X |
Unit |
Type |
Range |
Default value |
Svd |
Parameter name |
Designation |
Description |
---|---|
Slot/Index | DP-V1 addressing mechanism |
Byte offset |
Number of bytes from the index. |
Size (in bytes) |
Number of bytes that need to be read or written to access the complete information. |
Byte.Bit |
Number of the bit in a byte, for boolean data only. |
RW |
Whether the data is read only (R) or read-write (RW). |
X |
Scale factor:
|
Unit |
Unit of the value, only for integer data types. |
Type |
Coding data type (see Data Types table below). |
Range |
Range of permitted values for the variable, usually a subset of what the format allows. Only for integer data types that can be written. For BITMAP data type, the content range does not exist. |
Default Value |
Default value for the parameter. |
Svd |
Value saved when the power supply to the TeSys Tera system is switched off:
NOTE: The saved values are retrieved when the power
supply to the TeSys Tera system is switched on.
|
Parameter name |
Information about the data and the restrictions that apply. |
Data Types
Name |
Description |
Range |
---|---|---|
INT16 |
16-bit signed integer (1 word) |
-32768...+32767 |
UINT16 |
16-bit unsigned integer (1 word) |
0...65535 |
UINT32 |
32-bit unsigned integer (2 words) |
0...4 294 967 295 |
UINT64 |
64-bit unsigned integer (4 words) |
0...18 446 744 073 709 600 000 |
BOOL |
1-bit data |
0–1 |
BITMAP |
16-bit field (1 word) |
– |
UINT8 |
8-bit unsigned character |
0–255 |
Example of Endianness
Data Type | Value | Value in Hexadecimal | Big-endian | Little-endian |
---|---|---|---|---|
UINT16/INT16 | 1000 | 03E8 | 03 E8 | E8 03 |
UINT32/INT32 | 70000 | 00011170 | 00 01 11 70 | 70 11 01 00 |
UINT64/INT64 | 100000 | 00000000000186A0 | 00 00 00 00 00 01 86 A0 | A0 86 01 00 00 00 00 00 |
Date and Time
The date and time of events is coded in 8 bytes.
Byte offset | Size (in bytes) | Parameter name |
---|---|---|
0 | 1 | Day (1–31) |
1 | 1 | Month (1–12) |
2 | 1 | Year (0–99) |
3 | 1 | Hour (0–23) |
4 | 1 | Minute (0–59) |
5 | 1 | Second (0–59) |
6 | 2 | Millisecond (0–999) |
For setting date and time, refer to the Real-Time Clock Settings.