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Micromod MOD: 1800P - MOD 30ML Identity Module (Version 2) Algorithms, Tables and Sequential Logic Functions User Manual

Page 142

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Logic Functions - Book 2

SEQUENCE BLOCK

10-22

39

Current Step (STEP)............................................................................................................-WR
The current operating step in the sequence as determined by the step determination logic.
See Section 10.2.1 Sequence Block Operation for more information. Only writeable when
Mode is MANUAL or State is DEBUG.

40

Current Step Quality (STEPQ) ...........................................................................................-WR
The current step quality is determined by the step determination logic. Only writeable in
DEBUG.

GOOD

0

Quality when the step determination logic specifies a valid step in the
sequence.

BAD

1

Quality when the step determination logic specifies an invalid step.

41

Bad Input Action (IACTION) ............................................................................................. CWR
If a transition expression input or external step input has bad quality, and the Bad Input
attribute is configured to reject bad inputs, the action taken is controlled by the configured
action.

NO ACTION

0

Block outputs and their quality remain as they were prior to
detection of the error

SET QUALITY BAD

1

Step and all output qualities are set bad.

GO TO FAIL STEP

2

The operating step is set to the configured Fail Step, and
outputs are set as configured for that step.

42

Calculation Error Action (CACTION) ............................................................................... CWR
When a calculation error (calculation overflow, underflow, division by zero, etc.) is detected
during evaluation of a transitional expression, the action taken is controlled by the configured
action.

NO ACTION

0

Block outputs and their quality remain as they were prior to
detection of the error.

SET QUALITY BAD

1

Step and all output qualities are set bad.

GO TO FAIL STEP

2

The operating step is set to the configured Fail Step, and
outputs are set as configured for that step.

43

Bad Step Error Action (SACTION) ................................................................................... CWR
If a calculated step is out of range due to a syntax error in transition expression, the action
taken is determined by the configured action.

NO ACTION

0

Block outputs and their quality remain as they were prior to
detection of the error.

SET QUALITY BAD

1

Step and all output qualities are set bad.

GO TO FAIL STEP

2

The operating step is set to the configured Fail Step, and
outputs are set as configured for that step.