Omron CP1L Operation Manual page 502

Temperature Sensor Units
468
Startup Operation
After power is turned ON, approximately 1 s is required for the first conversion
data to be stored in the input word. During that period, the data will be 7FFE.
Therefore, create a program as shown below, so that when operation begins
simultaneously with startup it will wait for valid conversion data.
Always ON
P_On
Handling Unit Errors
• Expansion Unit and Expansion I/O Unit errors are output to bits 0 to 6 of
word A436. The bits are allocated from A436.00 in order starting from the
Unit nearest the CPU Unit. CP1W-/CPM1A-TS002 and CP1W-/CPM1A-
TS102 Temperature Sensor Units are allocated two bits each. Use these
flags in the program when it is necessary to detect Expansion Unit/Expan-
sion I/O Unit errors.
• When an error occurs, the Temperature Sensor Unit data becomes 7FFF
hex (the same as for an open-circuit detection). With an open-circuit
detection, it is not reflected in word A436.
Programming Example
1,2,3... 1. The following programming example shows how to convert the input data
from 2 temperature sensor inputs to BCD and store the result in D0 and
D1.
Inputs
Outputs
CMP(020)
2
#7FFE
(P_EQ)
1000.00
CP1W-TS001/101
CPM1A-TS001/101
CP1L
Temperature Sensor Unit
CIO 0 CIO 2
CIO 1 CIO 3
CIO 100 None
CIO 101
Temperature input data
output word
Initialization
Completed Flag
Temperature unit setting:
Two-decimal-place Mode:
Input range setting:
Input 0:
Input 1:
Section 7-5
0 (°C)
0 (normal)
1 (K: 0.0 to 500.0°C)
CIO 2
CIO 3