Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 169)

4-9
IM 04L31A01-01E
Control Function Related Setup Operations
4
• Snapshot
Saves the current screen image data to the external storage medium. Input a
signal for at least 250 ms.
The snapshot function operates in all modes (operation mode, setting mode, and
basic setting mode). Error messages, even if they are displayed, are not saved.
Note
• On models with the /A6R or /A4FR measurement alarm option terminal block, the action
from [MemoryStart/Stop] to [Snapshot] can also be assigned to the measurement remote
input. For the procedure in assigning actions to the measurement remote input, see
section 11.5, “Measurement Remote Input Setting.”
• If you wish to carry out operation only using contact input, you can disable key operation
such as by using the key lock function (see section 11.2 )
Remote setting, Alarm mode, and SP No. selection source
• Loop number
The [Remote setting] and [Alarm mode] parameters are set for each loop. When
changing these parameters, this setting is used to select the target loop number [1] to
[6] (initial value is 1). The loop number is displayed up to the number of loops you
specified at the time of purchase.
• Remote setting ← only when program control is OFF
Select [Remote] (initial value is Off) to set the PV input to remote input. If [Control
mode] is set to [Cascade], this box is not displayed for the loop number of the
secondary loop.
• Alarm mode
Select the condition for disabling the control alarm from the following. The characters
inside the parentheses are character strings displayed as selections in the soft key
menu.
ALWAYS:
Enable the alarm at all times.
STOP: Disable the alarm when the operation is stopped.
STOP/MAN: Disable the alarm during manual operation mode or when the operation
is stopped.
• SP No. selection source
Set the loop for switching the SP number using contact inputs [SPnumber0bit] to
[SPnumber3bit] (see section 1.5). To apply the setting, select [On] (initial value is Off)
for each loop number [1] to [6].
• PV/SP Computation Function
This setting determines whether or not the computed result is used for PV/SP. When
set to ON, you can specify an equation in the control setting mode to use for PV/SP.
When the PV/SP computation function is ON, the following settings become active for
each control input channel.
• Control input channel range settings
• Ten segment linearizer approximation settings
• External RJC/burnout
If you change the PV/SP computation function, all but the following items under
setting mode (control) are initialized.
• Tag, tag comment
• [#5 Control group setting]
• [#8 Detailed (DIO monitor and operation, etc...) > [#3 DI/DO monitor and operation
setting]
• [#8 Detailed (DIO monitor and operation, etc...) > [#4 DI/DO label setting]
• [#9 Control math setting] > [#2 Logic math]
• [#9 Control math setting] > [#3 Constant]
• Settings for loops set for analog retransmission
4.2 Control > DI/DO/SW-registration/AUX (Alarm mode...)