IDEC MICROSmart FC6A Series Ladder Programming Manual page 422

19: PID C I
ONTROL NSTRUCTION
When Digital Value is specified
• For auto mode, Control Output (S3+14) turns on and off from Output Manipulated Variable (MV) (S1+16, S1+17) and Control
Period (S1+64, S1+65). The on pulse width for the control period varies according to the output manipulated variable.
• For manual mode, Control Output (S3+14) turns on and off from Manual Mode Output MV (S1+14, S1+15) and Control Period
(S1+64, S1+65). The on pulse width for the control period varies according to Manual Mode Output MV (S1+14, S1+15).
When Data Register is selected for Output Manipulated Variable (MV), Device Address (10) and Maximum Value/Minimum Value
(11) can be set.
10. Device Address
Shows the device address to store the Output Manipulated Variable (MV) Analog Value (S1+66, S1+67).
11. Maximum Value, Minimum Value
Maximum Value and Minimum Value are set to perform the full scale conversion from Output Manipulated Variable (MV) (S1+16,
S1+17) to Output Manipulated Variable (MV) Analog Value (S1+66, S1+67). Set these values between -32,768.0 and 65,535.0.
When Digital Value is selected for Output Manipulated Variable (MV), Device Address (12) and Control Period (S1+64, S1+65) (13)
can be set.
12. Device Address
Shows the Control Output (S3+14) device address.
13. Control Period (S1+64, S1+65)
Set the cycle to perform on/off control of Control Output (S3+14) from Output Manipulated Variable (MV) (S1+16, S1+17). The
on pulse width for the control period varies according to the output manipulated variable.
Control Period is set as data type F (float) between 0.1 and 50.0 seconds in 0.1 second increments.
When control period: 5.0 seconds (set value 5.0)
OFF
Control
output
19-32
Output manipulated
variable (80%)
ON (4 s) OFF
5 s
FC6A S MICROS
ERIES
Output manipulated
variable (60%)
ON (3 s) OFF
5 s
L P
MART ADDER ROGRAMMING
Output manipulated
variable (50%)
ON (2.5 s) OFF
5 s
M FC9Y-B1726
ANUAL
ON