Yokogawa Data Acquisition with PID Control CX2000 Manuel d'utilisateur télécharger pdf (Page 13)

IM CX2000-S30E

3.5 Logic Computation Equation Example with SELECT Operator

This section explains an example of SELECT operator in logic computation.

The combination use of If-Then-Else ([eq1?eq2: eq3]) and program control operator

(.SELECT()) enable to check action error.

1. Assign “ProgramRun”, ProgramReset”, “HOLD”, “Advance” to internal switch number

you want to set.

Figure 3.5-1 Internal switch setting

2. Set/input logic computation equation with SELECT operator.

When the condition of logic computation equation is valid, an action you set in internal

switch (“Program Run” or ”Program Reset” or “HOLD” or “Advance”) is executed.

Example SW001=DO001 AND DI001.SELECT (1.1)

1. “Program RUN” is assigned to SW001

When both DO001 and DI001 are not “0” and when loop 1 exists in program

pattern 1, program pattern 1 runs.

2. “HOLD” is assigned to SW001

When both DO001 and DI001 are not “0” and when program pattern 1, in which

loop 1 exists and runs, program pattern 1 will be hold.

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Yokogawa Data Acquisition with PID Control CX2000 Manuel d'utilisateur Page 13