xvi
Meanings of Abbreviations and Terms
The following abbreviations and terms are used in this manual.
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.
Abbreviation
or term
Meaning
AT
Autotuning
EDU
EJ1 End Unit
EU
Engineering unit (See note.)
HB
Heater burnout
HS
Heater short
LBA
Loop burn alarm
LSP
Local SP
OC
Heater overcurrent
PV
Process value
RSP
Remote SP
SP
Set point
TC4/TC2
EJ1 Basic Unit
•
TC4: Four-channel Basic Unit
•
TC2: Two-channel Basic Unit
Temperature
Controller
EJ1 Basic Unit listed above (TC4 or TC2)
Configurator
Device to perform system setup and other functions. Includes functions for
reading ID data, reading and writing parameters, and displaying network
configurations. The DeviceNet Configurator and the CX-Integrator (with the
same screen configuration as the DeviceNet Configurator) are available for
Units manufactured by OMRON.
word (CIO)
Words allocated in the CIO Areas of the CPU Unit of the PLC.
channel (ch)
Number of control loops for a Temperature Controller.
communica-
tions unit num-
ber
An identification number for a Temperature Controller connected to a
DeviceNet Communications Unit. (Set using both rotary switch 1 and DIP
switch pin 2.)
unit number as
a CPU Bus Unit
The unit number of a DeviceNet Master Unit in the PLC. (Unit numbers are
used as identification numbers for CPU Bus Units.)
Summary of Contents for EJ1 - 07-2008
Page 3: ...iv...
Page 19: ...xx...
Page 33: ...14 Initial Temperature Controller Settings Section 1 4...
Page 53: ...34 Wiring the Temperature Controllers Section 3 4...
Page 101: ...82 Ladder Programming Examples Section 4 6...
Page 143: ...124 Sending Explicit Messages Section 6 5...
Page 155: ...136 Message Communications Characteristics Section 7 2...
Page 163: ...144 Maintenance Section 8 2...
Page 189: ...170 Allocation Numbers for Configurators Manufactured by Other Companies Appendix B...
Page 197: ...178 Index...