Internal loop, Internal loop -6 – Yokogawa DAQWORX User Manual

Page 263

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8-6

IM WX104-01E

CLOG Error (CX Style Number S3 or Later)

Set the error handling when the channel data for CLOG, which is an operator for PV/SP

math and retransmission, is in error.

Error: Handle as a computation error

Skip: Skip the erroneous data and compute

Event output settng

On Style 3 Ver. 3.02 or later, event output can be set for each program pattern. To set

the event output for each program patter, select [Separate]. To set the event output for

all program patterns, select [Common].

Internal Loop

For each loop there are Control Setting and Burn-out/Tuning items.

LOOP

Select the loop number 1 to 6 (1 or 2 on the CX1000, 1 to 4 if 6/4LOOP Select is set

to 4 loops on the CX2000) to which the settings apply. Only the loops for which system

settings were entered appear in the list.

[Control Settng] Tab

Contains the basic settings for internal loops.

• Control Action

Control Mode

Select the control mode from [Basic], [Cascade], [PVSwitch], or [Retrans] (Style 3 or

later). For a loop with no control, select [OFF]. Selecting [Cascade], because of a

common setting between two loops of a control output terminal block, when you set

loop 1 to cascade, loop 2 can also automatically be set to cascade, for example.

Method

Select the switching conditions of two measurement inputs from [TCRange],

[PVHigh], or [Signal]. You can only make this selection when [Control Mode] is set to

[PVSwitching].

Program Control (with the Program Control Option)

Turn program control ON or OFF (on style 2 or earlier, the setting is common to the

two loops on a single control output terminal block). This setting applies to both loops

of a single control output terminal block.

PID Control Mode

Select the PID control mode from [Follow-Up] or [Fixed-point]. You cannot make this

selection when [Control mode] is [OFF] for a loop.

8.3 Control Functon Basc Settngs

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