531
Temperature Sensor Units
Section 9-5
Note
Fahrenheit temperature uses the following equation to convert the tempera-
ture unit from Celsius, but the temperature input range is different between
Fahrenheit and Celsius.
Fahrenheit temperature (°F) = Celsius temperature (°C) x 1.8 + 32
Connecting Temperature
Sensors
Thermocouples
Either K or J thermocouples can be connected, but all four thermocouples
must be the same type and the same input range. Only last two channels can
be used as analog inputs.
Note
When connecting a thermocouple input, observe the following precautions:
• Do not remove the cold junction compensator attached at the time of
delivery. If the cold junction compensator is removed, the Unit will not be
able to measure temperatures correctly.
• Each of the input circuits is calibrated with the cold junction compensator
attached to the Unit. If the Unit is used with the cold junction compensator
from other Units, the Unit will not be able to measure temperatures cor-
rectly.
• Do not touch the cold junction compensator. Doing so may result in incor-
rect temperature measurement.
SW
Setting
1
Thermocouple type of
temperature sensor
ON
J
OFF
K
2
Temperature unit
ON
°F
OFF
°C
3
NC
4
Input type selection for
the third input (Input 2)
ON
Analog input
OFF
Thermocouple
5
Input type selection for
the fourth input (Input 3)
ON
Analog input
OFF
Thermocouple
6
Analog input signal
range
ON
1 to 5V/4 to 20mA
OFF
0 to 10V
Temperature input
Analog input
Input type
Range (°C)
Range (°F)
Input type
Range
K
−
200.0 to 1300.0
−
300.0 to 2300.0 Voltage
0 to 10V/1 to 5V
J
−
100.0 to 850.0
−
100.0 to 1500.0 Current
4 to 20mA
Temperature input 0
LOOP0
−
LOOP0+
NC
LOOP1
−
LOOP1+
NC
I IN2
I IN3
Temperature input 1
Temperature input 2
Temperature input 3
LOOP2+
V IN2
LOOP3+
V IN3
LOOP2
−
COM2
LOOP3
−
COM3
Cold junction
compensator
Summary of Contents for CP1L-EL20DR-D
Page 3: ...CP1L EL20D CP1L EM30D CP1L EM40D CP1L EL EM CPU Unit Operation Manual Produced July 2017...
Page 4: ...iv...
Page 10: ...x...
Page 22: ...xxii...
Page 34: ...xxxiv Software Licenses and Copyrights 7...
Page 192: ...158 Trial Operation and Debugging Section 5 3...
Page 250: ...216 Automatic Clock Adjustment and Specifying Servers by Host Name Section 6 7...
Page 666: ...632 Trouble Shooting Section 11 7...
Page 696: ...662 Standard Models Appendix A...
Page 805: ...771 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 806: ...772 Connections to Serial Communications Option Boards Appendix F...
Page 836: ...802 PLC Setup Appendix G...
Page 838: ...804 TCP Status Transitions Appendix H...
Page 840: ...806 Ethernet Network Parameters Appendix I...
Page 842: ...808 Buffer Configuration CP1L EL EM Appendix J...
Page 844: ...810 Ethernet Specifications Appendix K...
Page 851: ...Index 817 work words 118 write protection 447...
Page 852: ...818 Index...
Page 854: ...820 Revision History...
Page 855: ......