Omron CQM1H - 08-2005, Руководство по эксплуатации

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3-1 Features and Word Allocations
3-1-1 Features
•
The PID with advanced feed-forward circuitry (2 degrees of freedom) of the
CQM1-TC00
j
/TC10
j
assures stable temperature control. The Units can be
set to ON/OFF control.
•
CQM1-TC00
j
Temperature Control Units for thermocouples and
CQM1-TC10
j
Temperature Control Units for platinum resistance thermome-
ters are available. Each Temperature Control Unit can be used for two-loop
temperature control.
Temperature sensor
Output type
NPN output PNP output
Thermocouple CQM1-TC001 CQM1-TC002
Platinum resistance
thermometer CQM1-TC101 CQM1-TC102
3-1-2 Word Allocations
I/O Address
Bit
15 12 11 8 7 4 3 0
Output
m Loop 1 set point (SP)
m + 1 Loop 2 set point (SP)
Input n Loop 1 process value (PV)
n + 1 Loop 2 process value (PV)
•
One word each can be allocated for inputs and outputs if only one control loop
is used (when DIP switch pin 5 is ON).
•
Two words each will be allocated for inputs and outputs if two control loops are
used (when DIP switch pin 5 is OFF),
•
Data is handled as four digits of BCD, except that an F in the leftmost digit is
used to indicate negative values. The meaning of each digit is shown below.
CQM1-TC00
j
: 10
3
-10
2
-10
1
-10
0
, e.g., F999 = –999
CQM1-TC10
j
: 10
2
-10
1
-10
0
-10
–1
, e.g., F999 = –99.9
•
The set point setting range is as follows:
F999 to 9999, or CCCC
•
The contents of the process value is as follows:
F999 to 9999:
Process value
E
jjj
: Error code
FFFF: Initialization
Temperature Control Units
Features and Word Allocations
Section 3-1