Introduction
The BMENOP0300 module is a device that sends and receives data timestamped according to the IEC 61850 protocol. Some Mx80 ERT devices send and receive data timestamped according to the IEC60870 protocol.
To enable data transfer between devices that support different timestamp structures, you can use the following elementary functions in your program logic:
T850_TO_T870: This EF takes IEC60870 timestamped data (for example, data generated by the BMXNOR0200 module) and converts it to the more easily readable IEC 61850 format.T870_TO_T850: This EF takes IEC 61850 timestamped data generated by the BMENOP0300 module and converts it to the IEC60870 format where it can be used by other Mx80 ERT devices.
T850_TO_T870 Representation in FBD
The following graphic depicts the T850_TO_870 function:
T850_TO_T870 Parameters
Parameter |
Type |
Description |
|---|---|---|
Input parameters: |
||
|
|
the IEC61850 timestamp format |
Output parameters: |
||
|
|
the IEC 60870 timestamp format |
T870_TO_T850 Representation in FBD
The following graphic depicts the T870_TO_T850 function:
T870_TO_T850 Parameters
Parameter |
Type |
Description |
|---|---|---|
Input parameters: |
||
|
|
the IEC 60870 timestamp format |
Output parameters: |
||
|
|
the IEC61850 timestamp format |
Data Type Structure: TIME_850_FORMAT
Element |
Type |
Description |
|---|---|---|
Seconds |
|
seconds since 01-01-1970 NOTE: Only dates after January 01, 2000 are valid.
|
Ms_Quality |
|
milliseconds in IEC61850 format in low three bytes (Highest byte manages quality.) |
Data Type Structure: TIME_870_FORMAT
Element |
Type |
Description |
|---|---|---|
ms |
|
from 0...59999 ms |
min |
|
Numerical minute reference: 0...59. The highest bit indicates time validity:
|
hour |
|
numerical hour reference: 0...23 NOTE: SU (summertime) is not supported.
|
day |
|
numerical day reference: 1...31. NOTE: Day of week is not supported.
|
mon |
|
numerical month reference: 1...12 |
year |
|
numerical year reference: 0...99 |
reserved |
|
<reserved> |