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Conventions Used in This Manual
Meanings of Abbreviations
The following abbreviations are used in parameter names, figures and in text explanations. These
abbreviations mean the following:
Note “EU” stands for Engineering Unit. EU is used as the minimum unit for engineering units such as
°C, m, and g. The size of EU varies according to the input type.
For example, when the input temperature setting range is –200 to +1300
°C, 1 EU is 1°C, and
when the input temperature setting range is –20.0 to +500.0
°C, 1 EU is 0.1°C.
For analog inputs, the size of EU varies according to the decimal point position of the scaling set-
ting, and 1 EU becomes the minimum scaling unit.
Symbol Term
TC4/TC2 Four-channel and Two-channel Basic Units
ch Channel
HFU Advanced Unit
EDU End Unit
PV Process value
SP Set point
RSP Remote SP
LSP Local SP
LBA Loop burnout alarm
HB Heater burnout
HS Heater short
OC Heater overcurrent
AT Autotuning
EU Engineering unit (See note.)
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