Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual page 830

Data Control Instructions
Parameter Settings
Control data Item
Word Bits
C 00 to 03 Manipulated
variable range
04 to 07 Input type
08 to 11 Input read timing Specifies the input read timing.
12 to 15 Output limit con-
trol
C+1 00 to 15 Control period
C +2 00 to 15 Output lower
limit
C +3 00 to 15 Output upper
limit
C+4 00 to 15 Work area
C+5 00 to 15
C+6 00 to 15
Execution
External Wiring Example
Connect the Transistor Output Unit to a solid state relay (SSR) as shown in
the following diagram.
Transistor Output Unit
12 to 24 VDC
COM
Contents
Specifies the number of input
data bits.
Specifies whether S contains a
duty ratio or manipulated vari-
able.
Specifies whether the output
limit function is enabled or dis-
abled.
Control period
(Time period in which the ON/
OFF changes are made.)
Specifies the lower limit when
the output limit is enabled.
Specifies the upper limit when
the output limit is enabled.
This work area is used by the
system. It cannot be used by the
user.
Note When the output limit control function is enabled, set the lower and upper lim-
its as follows: 0000 hex
• The instruction is executed while the input condition is ON.
• When instruction execution starts, the output bit (R) is turned ON/OFF
according to the duty ratio.
SSR
+
Setting range
0 hex: 8 bits 5 hex: 13 bits
1 hex: 9 bits 6 hex: 14 bits
2 hex: 10 bits 7 hex: 15 bits
3 hex: 11 bits 8 hex: 16 bits
4 hex: 12 bits
0 hex: Duty ratio
Setting range for S: 0000 to
2710 hex (0.00 to 100.00%)
1 hex: Manipulated variable
Setting range for S: 0000 to
FFFF hex (0 to 65,535)
(The maximum setting
depends on the MV range set
with bits 00 to 03 of C.)
0 hex: Use the beginning value of
the control period
1 hex: Use lower value
2 hex: Use higher value
3 hex: Continuous adjustment
0 hex: Disabled
1 hex: Enabled (See note.)
0064 to 270F hex (1.00 to 99.99 s)
Note: For example, 1.00 s is set as
0064 hex, and not 0001 hex.
0000 to 2710 hex (0 to 100.00%)
0000 to 2710 hex (0 to 100.00%)
Cannot be used.
lower limit upper limit
Section 3-18
Heater
AC
Change with
ON input
condition
Allowed
Allowed
Allowed
Allowed
Allowed
Allowed
Allowed
---
2710 hex.
791