Download a range of parameters (input parameters)
Configure the PXRQ instruction in
Logix Designer
to download values for a range of input parameters:External Request | Data Value Array Element | Value |
|---|---|---|
Download Input Parameters | DINT[0] | Parameter ID of the first parameter Example: 4 |
DINT[1] | Number of parameters to download Example: 3 |
The
FactoryTalk Batch
Server downloads the range of parameter values, starting with the value associated with the requested parameter ID and the values of the phase parameters with incrementally higher parameter IDs, until the number of parameters downloaded matches the number of parameters requested. The parameter IDs need not increase sequentially.In this example, three parameter values would be downloaded, beginning with parameter ID 4 and including these two parameters with sequentially higher parameter IDs.
If a phase parameter with the requested parameter ID has not been configured when receive a download request, the parameter ID increments by one and the phase parameter configured with that ID is obtained. This process repeats until the originally requested ID has been incremented up to 999. If the requested number of phase parameters is not found after the parameter ID increments to 999, the phase request fails. In the phase logic, use the PFL instruction to fail the batch if desired when a phase request fails.
If the phase associated with the parameter has enabled Control Strategies, only those parameters belonging to the enabled Control Strategy are included in the download.
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