Omron SYSMAC CS Series User Manual

199
Examples of Applied Control Types Section 5-2
5-2-4 Dead Time Compensation
In processes having a large dead time that does not change much, the control
target is regarded and controlled as a process not having a dead time by can-
celing the dead time element equivalent to the process on the PLC. Dead time
compensation cannot adapt to disturbances such as load fluctuations.
Function block used: Dead Time Compensation (Block Model 149)
Example
Dead time compensation is performed on the MV output from the Advanced
PID block, and the result is connected to the PV compensation input of the
Advanced PID block. The PV compensation mode is set to “add”.
Analog
input
012
ON/OFF Timer
<Block Model 206>
013
MV
006
Advanced PID
<Block Model 012>
087
Timer start
PV
021 021
Analog
output
082
MV hold switch
007
Contact Distributor
<Block Model 201>
008
Address 001
Address 100 Address 101
Block
address
ITEM No. Data Explanation
901 002 586 AI 4-point Terminal block
021 Y1 (analog input 1)
902 002 587 AO 4-point terminal block
021 001087 X1 (analog output 1) source designa-
tion
031 X1 (analog output 1)
001 002 012 Advanced PID block
006 901021 PV source designation
082 MV hold switch
087 MV
100 002 206 ON/OFF Timer block
013 Contact output
101 002 201 Contact Distributor block
007 100013 Source designation (ITEM013 of ON/
OFF timer is entered.)
008 001082 Destination designation (output to
ITEM082 of Advanced PID)
Dead Time
Compensation
Block Model 149
Advanced PID
Block Model 012
MV
PV
PV compensation
input (additive type)

Omron SYSMAC CS Series Specifications

General

Brand	Omron
Model	SYSMAC CS Series
Category	Controller
Language	English