Show state and permission clearly
For each vessel, display the active stage and the conditions preventing progress. Distinguish a command from measured feedback. If the system is waiting for receiver availability, say so directly rather than leaving the operator to infer it from a stopped animation. The displayed language and units should match the site operating practice.
Prioritize alarms that require action
An alarm should identify the affected equipment, describe the condition and lead to an approved response. Avoid flooding the screen with secondary alarms caused by one lost utility. Separate warnings, process stops and safety-related indications according to the control design. Alarm acknowledgement should not be confused with removal of the underlying condition.
Provide useful trends and history
Cycle durations, pressure trends, level states and valve response times can support troubleshooting. Agree the logging interval, storage period and export format. The right history makes it possible to distinguish a slow-fill problem from a discharge restriction without repeated trial-and-error setting changes.
Control configuration changes
Recipe limits, user access and software backups should be part of the delivery scope. The SINOSEN source specifies Siemens PLC and HMI as preferred options, with the final hardware and software agreed in the quotation. A brand name alone does not establish the quality of the operating interface; review the actual screen list, alarm philosophy and acceptance tests.
General engineering guidance. Numerical examples are illustrative; project specifications and acceptance criteria are agreed for the actual duty.