Bar Graph Display - YOKOGAWA GX20 User Manual

1.2 Configuring AI Channels (Analog (including DI) input) channels and AI (mA) channels
1-52
Note
• Numeric display of analog input channels
If a measured value of an analog input channel is over range (see below), the measured
value is indicated as "+Over" or "–Over." If a burnout is detected on a channel whose burnout
detection function is enabled, the word "Burnout" is indicated. For all other cases, a numeric
value is displayed.
Over range of analog input channels
• An over range occurs when the measured value of an analog input channel exceeds ±5%
of the measurable range. For example, the measurable range when the measurement range
is 2 V is –2.000 to 2.000 V. If the measured value exceeds 2.200 V, +over range occurs; if the
measured value falls below –2.200 V, –over range occurs.
• For a channel using Linear scaling or Square root, over range occurs if the measured value
falls outside the –5% to 105% range of the specified span. You can also change the setting so
that over range occurs when the measured value falls outside the –5% to 105% range of the
measurable span range. However, +over range occurs if the value excluding the decimal point
exceeds 999999 and –over range if it falls below –999999.
Setup: See page 1-120 in section 1.11.2, "Setting the Over-range Detection Method".

Bar Graph Display

Measured data is displayed in a bar graph.
Vertical
Horizontal
• Bar Graph Updating
The bar graph is updated at the same interval as numeric values.
Channel number, tag, or tag No.
Alarm mark
Upper limit of span
Scale
Alarm point mark
Measured value
Unit
Bar graph (displayed
using the channel display color)
Lower limit of span
Bar graph base position is set to Lower.
Bar graph base position is set to Center.
Bar graph base position is set to Upper.
IM 04L51B01-01EN