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8 Using Expansion Units and Expansion I/O Units
8-84
CP1E CPU Unit Hardware User’s Manual(W479)
3
Connecte Temperature Sensors.
(1) Thermocouples
Either K or J thermocouples can be connected, but all twelve thermocouples must be the
same type and the same input range.
Precautions for Correct Use
Precautions for Correct Use
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 junc-
tion 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 correctly.
•
Do not touch the cold junction compensator. Doing so may result in incorrect temperature
measurement.
•
Use the thermocouple with metallic shield and connect the shield to ground.
4
Create the ladder program.
(1) Word Allocations
Temperature Sensor Units are allocated words in the same way as other CP-series Expan-
sion Units or Expansion I/O Units, in order of connection. A Temperature Sensor Unit is
allocated the next input words following the input words of the CPU Unit or previous Expan-
sion Unit or Expansion I/O Unit. Two input words and one output word are allocated to
CP1W-TS004.
•
Example
Temperature input 0
Temperature input 1
Temperature input 11
Cold junction
compensator
CIO 102
CP1E
Input word
addresses
Output word
addresses
CIO 0
CIO 1
CIO 100
CIO 101
CIO 2
CIO 3
CP1W-TS004
Temperature Sensor Unit
Summary of Contents for CP1E-E**D Series
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Page 66: ...2 Basic System Configuration and Devices 2 22 CP1E CPU Unit Hardware User s Manual W479...
Page 318: ...Appendices A 54 CP1E CPU Unit Hardware User s Manual W479...
Page 322: ...Index 4 CP1E CPU Unit Hardware User s Manual W479...
Page 324: ...Revision 2 CP1E CPU Unit Hardware User s Manual W479...
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