Application Examples; Basic Program For Temperature Control Unit - Omron CQM1 Operation Manual

Application Examples

Output Interface
Output Characteristeics
Output Circuits
3-5 Application Examples
3-5-1

Basic Program for Temperature Control Unit

Operation (for Control
Loop 1 Only)
Word/Bit Allocations (for
Control Loop 1 Only)
Always ON Flag
25313
(=)
25506
01600
Maximum switching capability
Leakage current
Residual voltage
External supply voltage
CQM1-TC 01 (NPN)
The contents of DM 0000 are written to the Temperature Control Unit as the
set point.
The process value is read from the Temperature Control Unit and written to
DM 0001. If an error has occurred, however, the value written to DM 0001 will
be treated as an error code.
Temperature Control Unit input word
Temperature Control Unit output word
Set point storage word
Process value storage word
Initialization End Flag
CMP(20)
MOV(21)
MOV(21)
END(01)
100 mA, 24 VDC
0.3 mA max.
3.0 V max.
15 mA min., 24 VDC
ing load current)
CQM1-TC 02 (PNP)
+DC
OUT
COM
IR 001
IR 100
DM 0000
DM 0001
IR 01600
The contents of IR 001 is compared to FFFF to
confirm that the Temperature Control has com-
#FFFF
pleted initialization processing. (See note 3)
001
If the process value (contents of IR 001) is not
01600
FFFF, IR 01600 is turned ON to indicate that
initialization has been completed.
If IR 01600 is ON, the contents of DM 0000 will
be written as the set point to IR 100.
DM0000
100
If IR 01600 is ON, the contents of IR 001 will
be read to DM 0001 as the process value.
001
DM0001
Section 3-5
+10%
/
–15%
+10%
/ (exclud-
–15%
COM
OUT
0 V
277