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468
Temperature Sensor Units
Section 7-5
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.
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.
(P_EQ)
1000.00
2
#7FFE
P_On
CMP(020)
Always ON
Temperature input data
output word
Initialization
Completed Flag
CP1L
CP1W-TS001/101
CPM1A-TS001/101
Temperature Sensor Unit
Inputs
Outputs
CIO 0
CIO 1
CIO 100
CIO 101
CIO 2
CIO 3
None
Temperature unit setting:
0 (
°
C)
Two-decimal-place Mode:
0 (normal)
Input range setting:
1 (K: 0.0 to 500.0
°
C)
Input 0:
CIO 2
Input 1:
CIO 3
Содержание CP1L CPU UNIT - 03-2009
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Страница 34: ...xxxiv Conformance to EC Directives 6...
Страница 70: ...36 Function Blocks Section 1 5...
Страница 584: ...550 Trouble Shooting Section 8 7...
Страница 627: ...593 Sample Application Section 9 12 Network Settings Network Tab Network Settings Driver Tab...
Страница 630: ...596 Sample Application Section 9 12...
Страница 654: ...620 Troubleshooting Unit Errors Section 11 4...
Страница 662: ...628 Replacing User serviceable Parts Section 12 2...
Страница 668: ...634 Standard Models Appendix A...
Страница 698: ...664 Auxiliary Area Allocations by Function Appendix C...
Страница 746: ...712 Auxiliary Area Allocations by Address Appendix D...
Страница 773: ...739 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 774: ...740 Connections to Serial Communications Option Boards Appendix F...
Страница 806: ...772 Index...
Страница 808: ...774 Revision History...