Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 183)

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Index
Configuring the CX1000/CX2000
Program Control (with the Program Control Option)
Turn program control ON or OFF for each loop. On style 2 and earlier, there is a
common setting for both loops of a single control output terminal block. If you make
a change such that the smallest loop number changes (other than selecting OFF), all
program patterns are initialized.
PID Control Mode
Select the PID control mode from [Follow-Up] or [Fixed-point]. This setting is disabled
on loops for which [Control mode] is [OFF].
• AUX
Remote Setting (Enabled When Program Control Is OFF)
When performing measurements by remote, select [Remote]. It cannot be set in the
following cases.
• For secondary measurement loop numbers when [Control Mode] is set to [Cascade].
• With even numbered loops (when PV/SP computation function is OFF) when the
number of loops is 2, 4, or 6 (4Loop is selected under 6/4Loop) and [Control Mode]
is set to PV Switching.
• When the number of loops is 6 (6 Loop is selected under 6/4 Loop) and [Control
Mode] is set to [PV Switching] (when the PV/SP computation function is OFF).
Alarm Mode
Select from the following conditions for disabling the control alarm.
ALWAYS:
Alarm is always enabled.
STOP:
Alarm disabled when operation is stopped.
STOP/MAN:
Alarm is disabled in manual operation mode or when operation is stopped.
• Output Process
When [Control Mode] is set to [Cascade], the output process settings are not available
for the primary loop.
Control Output
Select the type of control output from the following:
• Relay (time-proportional PID relay contact output)
• Voltage-pulse (time-proportional PID voltage pulse output)
• Current-output (continuous PID control output)
• On/Off-control (relay contact output, not available for analog retransmission loops)
Cycle Time
With a PID proportional to time, set the cycle time (control output cycle) between [1]s
and [1000]s.
Analog-output Type
For the current output, select the output current range from the following:
• [4-20mA], [0-20mA], [20-4mA], and [20-0mA].
7.3 Control Function Basic Settings