What the data for this category looks like
Data for this category is sourced from multiple types of business documents and system data from basic chemical continuous production entities including chlor-alkali, synthetic ammonia, methanol, and soda ash production facilities. Daily documents include operating procedures, process indicator cards, DCS trends, laboratory reports, interlock bypass records, special work permits, and shift reports. Data sources cover DCS/SIS systems, online analyzers, LIMS systems, equipment condition monitoring, energy metering, and raw material tank management systems. Data update frequencies fall into three categories: real-time, per shift, and daily. Fields include equipment numbers, process parameter values, interlock logic, maintenance steps, and more. Units include MPa, ℃, t/h, hours, and other standard units.
What constraints these characteristics impose on HTTP interfaces and external systems
Real-time updated DCS and equipment condition data requires interfaces to support short-cycle polling or Webhook push, to prevent data delays that disrupt inspection responses. Heterogeneous data formats from multiple sources require interfaces to support multi-endpoint adaptation, to connect to the output structures of different systems separately. Documents such as shift reports and process indicator cards updated per shift or daily require interfaces to support scheduled pull task scheduling, to align with business operation and maintenance rhythms. Data related to strong interlock control requires interface authentication and access control, to stop unauthorized calls from exposing dangerous process parameters. The business characteristics of large-scale continuous production require interfaces to have high availability, to prevent inspection process interruptions caused by single-point failures.
How to configure the settings
This configuration applies to FastGPT v4.17.0.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
Authorization | Bearer {private deployment exclusive key} | Basic chemical production data involves hazardous media and process parameters. Authentication is required to prevent unauthorized access. |
variables | {"device_category": "synthetic ammonia compressor", "data_update_freq": "per shift"} | Matches the equipment classification and data update frequency for this category, to filter unrelated documents and data. |
responseData | Return only equipment inspection items, maintenance steps, and interlock bypass descriptions | Focus on core business content, to reduce invalid data transmission and processing. |
| Request timeout | 600 seconds | Adapts to the latency requirements of real-time DCS data transmission, to avoid valid requests being blocked by short timeouts. |
| Single request data volume | First 100 entries | Matches the number of single-batch documents for shift reports and process indicator cards, to avoid interface overload. |
Three common misconfigurations
- An interface call returns a "Failed to fetch" error. The cause is incorrect configuration of the
Authorizationauthentication parameter, or cross-domain access permissions for the target interface not being enabled. - An interface error occurs when calling a local private deployment model. The cause is failing to disable SSL certificate verification, or failing to pass the correct
variablescontext parameter for the local model interface. - The
responseDatareturned by the interface contains a large number of irrelevant process flow parameters. The cause is not binding the category-specific equipment classification variable, and not filtering content unrelated to inspection and maintenance.
How to verify a correct configuration
- Send a test request, check that the interface returns a 200 status code, and confirm that the
Authorizationauthentication takes effect. - Adjust the equipment classification parameter in
variables, verify that the returned equipment inspection and maintenance content changes with the parameter. - Review the
responseDatareturned content, confirm that it only includes the inspection and maintenance related document fragments required for this category. - Test the call to the local private deployment model, confirm that the SSL certificate verification issue has been resolved, and that the interface can return results normally.
The values provided here are common starting points, and should be evaluated against the reader's own specific samples.