Omron SYSMAC CS Series User Manual

10
Outline Section 1-1
Secondary Loop Anti-
Reset Wind-up with
Cascade Control
The PID block on the primary loop side can be prevented from operating when
the high or low MV limit turns ON in the PID block on the secondary loop side
during cascade control. This prevents reset wind-up and can be used to pre-
vent the integral action from building up in the PID block on the primary side at
the high/low MV limits on the PID block on the secondary side.
Split Converter Block
(Block Model 169)
Input Range
The only input signal range available for the Split Converter block (Block
Model 169) had been −100.00% to 100.00%. This meant that the MV limit for
the PID block had to be changed to ±100.00% for heating and cooling control.
The Split Converter block (Block Model 169) now has another input signal
range that can be set from 0.00% to 100.00%.
Field Terminal Blocks I/O field terminal blocks have been added for the following Units.
1-1-5 LCB01/03/05 Version 3.0 Upgrade Information
Wireless Debugging
(PV Pseudo-inputs)
(Calibration Mode)
During Loop Controller operation, pseudo-inputs (fixed values) can be
assigned to the PV in Control Blocks (e.g., Basic PID, Advanced PID) from the
CX-Process Tool or SCADA Software/Programmable Terminal. This enables
easy confirmation of how the Function Blocks operate according to the Con-
trol Block PV, even when there is no actual Sensor or other external device
connected. If a Sensor error occurs, the Sensor can be easily replaced during
operation by assigning pseudo-inputs.
MV Tight Shut This function enables tight shut outputs of the values output to the I/O mem-
ory of the CPU Unit in the field terminals (analog output terminals) or user link
tables. When the output value drops to 0% or lower, the value set as the lower
limit (
−20.00% min.) is output, and when the output value rises to 100% or
higher, the value set as the upper limit (115.00% max.) will be output. This
function enables 0% or 100% output of the MV from the Control Block to close
a valve completely.
MV Analog Output
Inversion
This function enables inverting values output to the I/O memory of the CPU
Unit from the field terminals (analog output terminals) or user link tables. Out-
puts are inverted so that an output value of 100.00% is output as 0.00% and
an output value of 0.00% is output as 100.00%. Inversion of analog outputs is
a simple means of dealing with purchased valves that are found to have a
reversed opening/closing direction.
PID Function Block
RUN/STOP
Contact input (RUN/STOP switch) can be used in Basic PID (Block Model
011) or Advanced PID (Block Model 012) to start or stop PID calculation for
Unit Type Block model Block name
CS-series Isolated-type
Thermocouple Input Unit
CS1W-PTS51 566 Ai 4-point Terminal
(PTS51)
CS1W-PTS55 568 Ai 8-point Terminal
(PTS55)
CS-series Isolated-type
Resistance Thermome-
ter Input Unit
CS1W-PTS52 567 Ai 4-point Terminal
(PTS52)
CS1W-PTS56 569 Ai 8-point Terminal
(PTS56)
CS-series Isolated-type
Direct Current Input Unit
CS1W-PDC55 570 Ai 8-point Terminal
(PDC55)
CJ-series Analog Output
Unit
CJ1W-DA021 591 Ao 2-point Terminal
(DA021)
CJ-series Analog Input
Unit
CJ1W-MAD42 592 Ai 4-point/Ao 2-point
Terminal (MAD42)

Omron SYSMAC CS Series Specifications

General

Brand	Omron
Model	SYSMAC CS Series
Category	Controller
Language	English