Certain embodiments of the present disclosure are directed to a method that may include identifying at least one metric for a fluid flowing through a line from a vessel to a dispenser. The method may include identifying a reference value for the at least one metric for the fluid. The method may include performing an analysis of the fluid based on the at least one metric for the fluid. The method may include comparing results of the analysis with the reference value. The method may include performing at least one action based on determining that there has been a change in the at least one metric relative to the reference value.

The present inventors have recognized that highly reliable operation may be further achieved in industrial control systems by monitoring execution of programs in real time. Such monitoring may include detecting defective program sequences which may be caused by executing a wrong sequence, executing a sequence at a wrong time, and/or a faulty clock. In one aspect, a control program may be divided into executable modules. A first code stream may then execute to control an industrial process or machine using the executable modules stored in a first set. In addition, a second code stream may execute to verify the first code stream using executable modules stored in a second set. First and second execution sequence values may be generated based on execution of the first and second code streams. A comparison of the first and second execution sequence values may detect an error which may have occurred in the program.

A visual diagnostics (VIDX) system comprises a visualization assembly, a data analytic assembly, and a data storage assembly communicatively coupled to each other via one or more buses. Other computer assembly may be integrated into or coupled to the system. Various features comprises a calendar based visualization, a timeline for multi-scale temporal exploration, a visual diagnostics graph, and multiples of histograms showing the distribution of the cycle time one each station with a quantile range selector such as a quantiles brush and/or a samples brush, of a visual diagnostics (VIDX) graph is displayed for interaction.

Certain embodiments of the present disclosure are directed to a method that may include identifying at least one metric for a fluid flowing through a line from a vessel to a dispenser. The method may include identifying a reference value for the at least one metric for the fluid. The method may include performing an analysis of the fluid based on the at least one metric for the fluid. The method may include comparing results of the analysis with the reference value. The method may include performing at least one action based on determining that there has been a change in the at least one metric relative to the reference value.

The present inventors have recognized that highly reliable operation may be further achieved in industrial control systems by monitoring execution of programs in real time. Such monitoring may include detecting defective program sequences which may be caused by executing a wrong sequence, executing a sequence at a wrong time, and/or a faulty clock. In one aspect, a control program may be divided into executable modules. A first code stream may then execute to control an industrial process or machine using the executable modules stored in a first set. In addition, a second code stream may execute to verify the first code stream using executable modules stored in a second set. First and second execution sequence values may be generated based on execution of the first and second code streams. A comparison of the first and second execution sequence values may detect an error which may have occurred in the program.

Certain embodiments of the present disclosure are directed to a method that may include identifying at least one metric for a fluid flowing through a line from a vessel to a dispenser. The method may include identifying a reference value for the at least one metric for the fluid. The method may include performing an analysis of the fluid based on the at least one metric for the fluid. The method may include comparing results of the analysis with the reference value. The method may include performing at least one action based on determining that there has been a change in the at least one metric relative to the reference value.

The control device includes a processor that repeatedly executes a calculation process for controlling an apparatus based on circuit information read from a circuit information memory, a data memory that sequentially stores calculation results of the calculation process, and a diagnosis unit that executes a diagnosis process for diagnosing presence or absence of a bit error in the circuit information stored in the circuit information memory. In a case where the bit error is diagnosed by the diagnosis unit, the processor outputs, as the calculation result, recent past data corresponding to a case where no bit error is diagnosed by the diagnosis unit, among the calculation results stored in the data memory, or alternative data prepared in advance to correspond to the past data.