Dip Switch Setting Functions - Omron CJ Series Operation Manual

Part Names and Functions
2-3-4

DIP Switch Setting Functions

Operation in PROGRAM
mode (Pin 1)
Temperature Units (Pin 2)
Data Format (Pin 3)
MODE
ON is to the right.
Pin Function
1 Operation when CPU Unit is in
PROGRAM mode
2 Temperature units (°C/°F)
3 Data format
4 Control operation (loops 1 and 3) Forward
5 Control operation (loops 2 and 4) Forward
6 Control method
7 Initialize settings in EEPROM
8 Transfer settings in EEPROM
The following table shows how the Temperature Control Unit will operate
when the CPU Unit's operating mode is changed.
Temperature Control Unit
settings
Pin 1
OFF (Stop) Run
Stop
ON (Continue) Run
Stop
Select either ° C display (centigrade) or ° F display (farenheit). When ° F is
selected, the temperature is converted using the following equation:
° F = ( ° C × 1.8) + 32
Pin 3 selects whether the data exchanged between the Temperature Control
Unit and CPU Unit is handled as 4-digit BCD or binary (i.e., 4-digit hexadeci-
mal.) This switch setting controls the data format for the various settings such
as SPs, PVs, alarm settings in both the CIO and DM Areas.
Pin 3 setting
ON
OFF
Note If BCD format is selected, it isn't necessary to convert the data (Binary to BCD
conversion) in the program when displaying the actual temperature so the lad-
der program load can be reduced. However, parts of some temperature
ranges cannot be displayed in BCD so it will be necessary to use the binary
format in those cases.
Continue
°F
16-bit binary
(cooling)
(cooling)
ON/OFF control PID control
Initialize
Transfer
Operation of Temperature Control Unit when CPU
Unit's operating mode is changed
Stop Bit From RUN or MONITOR
to PROGRAM
Stop operation
Stop operation
Continue operation
Stop operation
Data format
Binary (4-digit Hexadecimal)
4-digit BCD
Section 2-3
ON OFF
Stop
°C
4-digit BCD
Reverse
(heating)
Reverse
(heating)
Do not initialize
Do not transfer ON
From PROGRAM
to RUN or MONITOR
Continue operation
Stop operation
Continue operation
Stop operation
Example
(SP: −200 to 1,300°C)
FF38 to FFFF to 0514
(−200 to −1 to 1,300)
F200 to 1300
(−200 to 1,300)
Factory
setting
OFF
23