ABB SPA-Bus communication protocol
Supported device types and versions
Communication line configuration
Communication line parameters
Station configuration
Station parameters
I/O tag configuration
Literature
Changes and modifications
Document revisions
Supported device types and versions
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A The protocol support data reading/writing from the digital protection modules of ABB VN devicesdigital high-voltage circuit-breakers produced by ABB.
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| komunikacna_linka |
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| komunikacna_linka |
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Communication line configuration
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Communication line - configuration dialog - Protocol parameters tab.
The parameters influence some optional protocol parameters. The following protocol line parameters can be used:
Table 1
Parameter | Meaning | Unit / Size | Default value |
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| Parameter starts a software generation and even parity |
checkchecking. A transmission device parameters can be set on 8N1 (i.e. 8 bits, no parity, 1 stop bit) instead of 7E1 (7 bits, even parity, 1 stop bit) which is commonly used in the SPA-Bus protocol. | YES/NO | NO |
Moxa Redundancy Check Timeout | Switching time |
in Moxa redundant devices for redundant serial servers (e.g. Moxa N-Port devices) in case of a communication error. This parameter is only relevant for SerialOverUDP Device Redundant line. | sec | 5 sec |
Max. Data Number Optimization | Optimization data reading |
at for polling. If there are I/O tags with Data Number successive addresses, the polling is executed together until the value of this parameter is reached (i.e. if the value is 3, three I/O tags will be polled together). Value 1 switches an optimization off, each I/O tag is polled separately. | 1 .. 32 | 1 |
| The period of sending a Time synchronization (T |
synchronization sending at the to address 900. When the parameter is 0 |
secseconds., the time synchronization |
sending is disabled. | 0 .. 60 sec | 10 sec |
Expected T Packet Transmission Duration | Expected duration of transfer of a time synchronization (T |
synchronization transmission by all the transmitting devices until the whole packet is received in |
own devicesdevice itself. This time is added to a current time when the packet is being sent so that the time in the packet is |
also in of complete receiving is completely received by the device. | msec | 20 msec |
Date and Time D Broadcast Periode |
Duration Period of sending a Time and Date synchronization (D) packet |
sending on the to address 900. When the parameter is 0 |
sec.seconds, the sending of synchronization |
sending is disabled. | 0 .. 3600 sec | 60 sec |
Expected D Packet Transmission Duration | Expected duration of transfer of a Time and Date synchronization (D) packet |
sending by all the transmitting devices until the whole packet is received |
completely own the protection device itself. This time is added to a current time when the packet is being sent so that the time in the packet is |
also in of complete receiving is completely received by the device. | msec | 35 msec |
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| komunikacna_stanica |
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Station configuration
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- Communication protocol: ABB SPA-Bus.
- Station The station address is a number in the range of 1 to 999, 0 is not used, 900 is reserved for broadcast.
- Time parameter settings - Polling parameters, are ignored, the polling of the values is executed in the shortest possible period.
- Time parameter - Synchronization time, is ignored, a real time synchronization via the broadcast messages is controlled by the protocol line parameters "Time T Broadcast Period" and "Date and Time D Broadcast Period".
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| stanica_parametre |
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| stanica_parametre |
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Station parameters
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Communication station - Protocol parameters tab.
The parameters influence some optional protocol parameters. The following protocol line parameters can be used:
Table 2
Parameter | Meaning | Unit | Default value |
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Retry count A number of the request repetitions in case of a communication failure. | 1 .. 20 | 2 |
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Delay The delay between a request retry in case of a communication failure. | msec | 20 msec |
| First waiting |
on for a response after sending the request. | msec | 50 msec |
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Delay between reading The delay between individual readings of the response until |
its completingit is completed. | msec | 20 msec |
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Retry count The maximum number of response |
reading until its completingreadings until it is completed. | - | 20 |
| Communication with the station is delayed by defined time in case of a communication error. If a line contains more stations (protective devices) and one of them |
will failfails, it can slow down the communication |
of functional functioning stations. Next recovery of the communication with a failed station will be delayed by a defined value (time). If the line contains only |
one a single station, the parameter value should be 0 |
secEnables This parameter activates a periodic event reading by the function "Last events L". |
A time Integral An integer value of "ERROR" state for conversion to a quadrat input Qi. | 0, 1, 2, 3 | 3 |
Value For Off/Open Position |
Integral An integer value of "OFF" state for conversion to a quadrat input Qi. | 0, 1, 2, 3 | 1 |
Value For On/Close Position |
Integral An integer value of "ON" state for conversion to a quadrat input Qi. | 0, 1, 2, 3 | 2 |
Value For Intermediate Position |
Integral An integer value of "TRANS" state for conversion to a quadrat input Qi. | 0, 1, 2, 3 | 0 |
| Conversion mask to convert |
a |
| yyyy-mm-dd |
| Conversion mask to convert |
a Starts This parameter activates a detailed debug info about I/O tag values obtained by polling. | YES/NO | NO |
I/O tag configuration
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Possible value types: Ai, Ao, Ci, Co, Di, Dout, Qi, TxtI, TxtO, TiA, ToA, TiR, ToR.
I/O tag address items:
- Channel: channel number is a required numerical address parameter intended for all data categories except for F and C.
- Category: data category code; if it is unknown, write select "Not defined", if it is known, you can choose one of the following data categories:
- Input data I
- Output data O
- Setting Values S
- Variable V
- Memory data M
- Slave identification F
- Slave status C
"Slave Identification F" and "Slave Status C" are unique. No categories don't require specifying of any other address parameter is required. The value is unique within the device.
"Slave identification F" returns 10 signs characters which identifies identify a device. We recommend to configure it as I/O tag of TxtI type.
"Slave status C" returns the numbers a number 0, 1, 2 or 3. See also Note 1.
- Data Number: required a mandatory numerical address parameter for all data categories except for F and C.
- Poll: enables a periodic polling for all data categories except for "Not defined". The data category "Slave identification F" does not required the require periodic polling because it is static data. If the periodic polling is disabled, the object is polled while starting only when the communication is started or when I/O tag value is unknown.
- Event code - Intermediate position (00): a numerical address of event address when the object is in goes to "Intermediate position". Set A value of "TRANS" can be set for Qi I/O tag type or a number numerical value according to the protocol parameter "Value for intermediate position" for I/O tags of Ai, Ao, Ci, Co types. A configuration is not allowed for I/O tags of Di, Dout types.
- Event code - Off/Open position: a a numerical address of event address when the object passes goes to "Off/Open position". Set A value of "OFF" can be set for Qi I/ tags or the number tag type or a numerical value according to the protocol parameter "Value for Off/Open position" for Ai, Ao, Ci, Co I/O tags.
- Event code - On/Close position: a numerical address of event address when the object passes goes to "On/Close position". Set A value of"ON" for can be set for Qi I/O tags or the number O tag type or a numerical value according to the protocol parameter "Value for On/Close position" for Ai, Ao, Ci, Co I/O tags.
- Event code - Invalid position (11): a numerical address of event address when the object passes goes to "Invalid position". Set A value of"ERROR" can be set for Qi I/O tags or the number O tag type or a numerical value according to the protocol parameter "Value for invalid position" for Ai, Ao, Ci, Co I/O tags. The configuration is not allowed for Di, Dout I/O tags.
Note 1
When E50 (slave reset) event or E51 (slave event buffer overflow) events occur, the value 0 is written to the "Slave status C" aside from category object with address 0, regardless of whether the I/O tag of C category exists or not.
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