Omron CP1L-EL20DR-D, Operation Manual

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Temperature Sensor Units Section 9-5
1 to 5 V
The 1 to 5 V range corresponds to the hexadecimal values 0000 to 2EE0 (0 to
12000). The entire data range is FDA8 to 3138 (
−
600 to 12600). Inputs
between 0.8 and 1 V are expressed as two’s complements. If the input falls
below 0.8 V, open-circuit detection will activate and converted data will be
8000.
4 to 20 mA
The 4 to 20 mA range corresponds to the hexadecimal values 0000 to 2EE0
(0 to 12000). The entire data range is FDA8 to 3138 (
−
600 to 12600). Inputs
between 3.2 and 4 mA are expressed as two’s complements. If the input falls
below 3.2 mA, open-circuit detection will activate and converted data will be
8000.
Open-circuit Detection
Function for Temperature If the circuit is disconnected, the open-circuit detection function will operate
and the converted temperature data will be set to 7FFF.
Open-circuit Detection
Function for Analog
Inputs The open-circuit detection function is activated when the input range is set to
1 to 5 V and the voltage drops below 0.8 V, or when the input range is set to 4
to 20 mA and the current drops below 3.2 mA. When the open-circuit detec-
tion function is activated, the converted data will be set to 8,000.
The time for enabling or clearing the open-circuit detection function is the
same as the time for converting the data. If the input returns to the convertible
range, the open-circuit detection is cleared automatically and the output
returns to the normal range.
Creating a Ladder
Program Word Allocations
Temperature Sensor Units are allocated words in the same way as other CP-
series Expansion Units or Expansion I/O Units, in order of connection. A Tem-
perature Sensor Unit is allocated the next input words following the input
words of the CPU Unit or previous Expansion Unit or Expansion I/O Unit. Four
input words are allocated to CP1W-TS003.
1 V 5 V 5.2 V
0.8 V
FDA8 (
−
600)
3138 (12600)
2EE0 (12000)
0000 (0)
Converted Data
Hexadecimal (Decimal)
4 mA 20 mA 20.8 mA
3.2 mA
FDA8 (
−
600)
3138 (12600)
2EE0 (12000)
0000 (0)
0 mA
Converted Data
Hexadecimal (Decimal)