Modbus Read Discrete Inputs
|
Page in progress. |
Reading multiple consecutive bits.
blockType: CFunction
|
Path in the library: |
Description
The Modbus Read Discrete Inputs block is used to read multiple consecutive bits.
Modbus functions: 1 (0x01)
Ports
Output
#
Data
—
received data
vector
Details
Vector of 8-bit unsigned integers
| Data types |
|
| 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 |
|
| Complex numbers support |
No |
Parameters
Параметры
# Идентификатор сервера — slave device ID
Details
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
Yes |
# Начальный адрес чтения — initial address for reading, not including the offset
Details
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
Yes |
# Количество регистров — number of registers to read
Details
| Default value |
|
| Program usage name |
|
| 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 |