Omron Sysmac CJ Series, Operation Manual

Page: 46 / 117

23
Part Names and Functions Section 2-3
2-3-4 DIP Switch Setting Functions
ON is to the right.
Operation in PROGRAM
mode (Pin 1) The following table shows how the Temperature Control Unit will operate
when the CPU Unit’s operating mode is changed.
Temperature Units (Pin 2) 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
Data Format (Pin 3) 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.
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.
Pin Function ON OFF Factory
setting
1 Operation when CPU Unit is in
PROGRAM mode Continue Stop OFF
2 Temperature units (
°
C/
°
F)
°
F
°
C
3 Data format 16-bit binary 4-digit BCD
4 Control operation (loops 1 and 3) Forward
(cooling)
Reverse
(heating)
5 Control operation (loops 2 and 4) Forward
(cooling)
Reverse
(heating)
6 Control method ON/OFF control PID control
7 Initialize settings in EEPROM Initialize Do not initialize
8 Transfer settings in EEPROM Transfer Do not transfer ON
1
2
3
456
7
8
MODE
Temperature Control Unit
settings
Operation of Temperature Control Unit when CPU
Unit’s operating mode is changed
Pin 1 Stop Bit From RUN or MONITOR
to PROGRAM
From PROGRAM
to RUN or MONITOR
OFF (Stop) Run Stop operation Continue operation
Stop Stop operation Stop operation
ON (Continue) Run Continue operation Continue operation
Stop Stop operation Stop operation
Pin 3 setting Data format Example
(SP:
−
200 to 1,300
°
C)
ON Binary (4-digit Hexadecimal) FF38 to FFFF to 0514
(
−
200 to
−
1 to 1,300)
OFF 4-digit BCD F200 to 1300
(
−
200 to 1,300)