Special processing of report results – Yokogawa Standalone MW100 User Manual

Page 88

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1-74

IM MW100-01E

Processing Reports with Abnormal Input Values or Overflow Values

You can select how reports are processed when an error occurs on the channel
(measurement or MATH channel) for which a report is created.

For report processing during abnormalities, see “Report Operation Settings 1” in section 3.12.

Special Processing of Report Results

• Status of channel for which the report is created
The following demonstrates cases in which an abnormal input value or overflow value

occurs on the channel for which the report is created.

Channel Type

Status

Description

Measurement channel

Abnormal input

value

The module of the target channel is

disconnected, or some other abnormality

Overflow value

Input value exceeds the measurement range

Computation channel

Overflow value

When the computed result on a MATH channel

exceeds the MATH span setting range

*1

• Processing during abnormal input

*2

Report Data Type

Notation

Process Description

Maximum/minimum/

integral/average value

Error

The report data is an error

Skip

Uses the previous value of the channel on

which the abnormal input value occurred

• Processing during an overflow

*3

Report Data Type

Notation

Process Description

Integral/average value

Error

The report data is an error

Skip

Uses the previous value on the channel on

which the overflow value occurred

Limit

*4

The overflow value is replaced with the upper

or lower limit

*1 For the MATH span setting range, see “MATH Span” in section 1.15.
*2 The instantaneous value during abnormal input is 99999999 (decimal place depends on the

setting)

*3 The maximum, minimum, and instantaneous values during an overflow are handled as

follows.
• +Over: Measurement channel 99999 (decimal place depends on the setting)

MATH channel

99999999 (decimal place depends on the setting)

• –Over: Measurement channel –99999 (decimal place depends on the setting)

MATH channel

–9999999 (decimal place depends on the setting)

*4 The lower/upper limit value replaced differs depending on the channel’s setting condition.

Measurement channel: Measurement range upper and lower limit
Scaled measurement channel: Upper and lower limit of scaling
Computation channel: Span upper limit and lower limit

1.16 Report Function (/M3 Option)

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