Accurate estimation of a behavior of a target and presentation of a control program of the target are performed. An information processing apparatus includes: a storage configured to store control programs of a plurality of targets, which include a plurality of commands used to control a behavior of a corresponding target of the targets; a display controller configured to control a display; an execution unit configured to execute an emulator program configured to estimate a behavior of each of the targets, which includes the plurality of commands included in the control program of each of the targets; and a drawing data generation unit configured to generate drawing data for drawing the behaviors of the targets estimated through execution of the emulator program of the targets in a three-dimensional virtual space, wherein the display controller controls the display so that display of a plurality of commands of at least one of the control programs of the plurality of targets and drawing representing the behaviors of the targets according to the drawing data are performed on the same screen.

A host system which executes an emulation environment for modelling a logical behavior of an industrial control device may execute a clock management module to scale execution time in the emulation environment to more accurately reflect execution time of the industrial control device. The clock management module may operate to receive repeatable ticks based on a real time clock of the host system. The repeatable ticks may be used to measure execution of a portion of an industrial control program in the emulation environment, which measure may be compared to a reference value for executing the same portion on the industrial control device. The host system may then temporarily stall execution in the emulation environment to match execution on the industrial control device.

A host system which executes an emulation environment for modelling a logical behavior of an industrial control device may execute a clock management module to scale execution time in the emulation environment to more accurately reflect execution time of the industrial control device. The clock management module may operate to receive repeatable ticks based on a real time clock of the host system. The repeatable ticks may be used to measure execution of a portion of an industrial control program in the emulation environment, which measure may be compared to a reference value for executing the same portion on the industrial control device. The host system may then temporarily stall execution in the emulation environment to match execution on the industrial control device.