Modbus Read Coil Status
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Reading multiple consecutive bits.
blockType: CFunction
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Path in the library: |
Description
The Modbus Read Coil Status block is used to read multiple consecutive bits.
Modbus functions: 2 (0x02)
Ports
Output
#
Data
—
received data
vector
Details
Vector of 8-bit unsigned integers
| Data types |
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| Complex numbers support |
No |
#
Status
—
transaction status
scalar
Details
Designed for error control and error handling in the model. Error codes:
-
-1- operation error.
If the operation is successful, the number of read bits will be returned.
| Data types |
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| Complex numbers support |
No |
Parameters
Параметры
# Идентификатор сервера — slave device ID
Details
| Default value |
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| Program usage name |
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| Tunable |
No |
| Evaluatable |
Yes |
# Начальный адрес чтения — initial address for reading, not including the offset
Details
| Default value |
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| Program usage name |
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| Tunable |
No |
| Evaluatable |
Yes |
# Количество регистров — number of registers to read
Details
| Default value |
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| Program usage name |
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| Tunable |
No |
| Evaluatable |
Yes |
# Шаг расчёта, с — calculation step in seconds to obtain data in a real-time application
Details
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
Yes |