At (auto tuning) stop/start, Release all do (digital output) latches, Communication di (digital input) 1 – Nor-Cal SDC15 Controller User Manual

Page 58

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AT (Auto Tuning) stop/start

The AT stop/start selection can be set.

• The AT is stopped in the MANUAL or READY mode.
• If the PV high limit alarm (AL01) or PV low limit alarm (AL02) occurs, the AT

is stopped.

• If the operation type of internal contacts 1 to 3 is set at "AT stop/start", [At: AT

stop/start] can be displayed, but the setting cannot be made.

• When [CtrL: Control method] is set at "0" (ON/OFF control), [At: AT stop/start]

cannot be displayed and set.

• When [bit 3: AT stop/start display] of [C73: MODE display setup] is set at "0"

(no display), [At: AT stop/start] cannot be displayed and set.

For details about AT,

refer to

AT (on page 5-18)

and

AT function (on page 5-21)

.

Release all DO (digital output) latches

Release all DO (digital output) latches can be set.

• If the operation type of internal contacts 1 to 3 is set at "Release all DO latches",

[do.Lt: Release all DO latches] can be displayed, but the setting cannot be made.

• When [bit 4: Release all DO latches display] of [C73: MODE display setup] is

set at "0" (no display), [do.Lt: Release all DO latches] cannot be displayed and
set.

Communication DI (digital input) 1

Communication DI (digital input) 1 can be set.

• Four communication DIs, DI1 to DI4, are provided. However, only

communication DI 1 can be set using the key operation.

• The function (operation) with communication DI 1 can be set using the DI

Assignment.

• When [bit 5: Communication DI 1 display] of [C73: MODE display setup] is set

at "0" (no display), [C.DI1: Communication DI 1] cannot be displayed and set.

5-8

Chapter 5. DETAILED DESCRIPTION OF EACH FUNCTION

Item (Setting display/bank)

Display

Contents

Initial value

User level

AT (Auto Tuning) stop/start
(Parameter setting/Mode
bank)

At.oF: AT stop [Communication value is "0".]
At.ON: AT start [Communication value is "1".]

At.oF

Simple,
Standard,
High function

Item (Setting display/bank)

Display

Contents

Initial value

User level

Release all DO (digital
output) latches
(Parameter setting/Mode
bank)

Lt.ON: Latch is continued. [Communication

value is "0".]

Lt.oF: Latch is released. [Communication

value is "1".])

Lt.ON

Simple,
Standard,
High function

Item (Setting display/bank)

Display

Contents

Initial value

User level

Communication DI (digital
input) 1
(Parameter setting/Mode
bank)

DI.oF: Communication DI1. OFF

[Communication value is "0".]

DI.ON: Communication DI1. ON

[Communication value is "1".]

DI.oF

Simple,
Standard,
High function

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