Honeywell DCP552 Mark II user manual Mode transition restrictions, RUN Hold Reset ADV Fast

Chapter 5. FUNCTIONS

■Mode transition restrictions

Modes can be changed using console keys, external switch inputs or through communications. The table below shows the operations that are valid for each mode.

Operation

RUN

HOLD

RESET

ADV

FAST

(To RUN mode)

(To RUN mode)

(To READY mode)

(To next segment)

(To FAST or

READY FAST mode)

Key Switch Commu-

Key Switch Commu-

Key Switch

Commu-

Key Switch

Commu-

Key

Switch

Commu-

Original mode

nication

nication

nication

nication*

nication

Program

READY

❁

❁

❁

–

–

–

–

∆￿

❑

–

❁

–

❁

❁

❁

operation

RUN

–

–

❑

❁

❍

❁

❁

❍

❁

❁

❍

❁

❁

❍

❁

HOLD

❁

❍

❁

–

–

❑

❁

❍

❁

❁

❍

❁

❁

❍

❁

FAST

❁

❍

❁

–

❍

❁

❁

❍

❁

❁

❍

❁

–

–

❑

END

–

–

–

–

–

–

❁

❍

❁

–

–

–

–

–

–

READY

❁

❁

❁

–

–

–

❁

❍

❁

❁

❍

❁

–

–

❑

FAST

Constant

READY

❁

❁

❁

–

–

–

–

–

❑

–

–

–

–

–

–

value

RUN

–

–

–

–

–

–

–

–

–

–

–

control

❑

❁

❍

❁

❍

: Valid operation

Operation

￿MANUAL

AUTO

(To MANUAL mode)

(To AUTO mode)

❁

: Operation from basic display status

∆

valid

Original mode

Key Switch Communication

Key Switch Communication

: Returns to the first segment remaining

in the READY mode.

Program

AUTO

❁

❍

❁

—

—

❑

❑ : Operation is invalid, but the

operation

MANUAL

—

—

❑

❁

❍

❁

communication end code is normal if

Constant

AUTO

❁

❍

❁

—

—

❑

performed in the basic display status.

value

MANUAL

—

—

–

: Invalid operation

control

❑

❁

❍

❁

*ADV operation performed via communications may not go to the next segment but to the segment set in the communications message.

Handling Precautions

•Mode transitions can be simultaneously performed for both CH1 and CH2 under the following conditions.

•When key operations are performed in synchronous mode (PA04=1). •Switch operations performed when both the CH1 operation cancel switch (SW15) and the CH2 operation cancel switch (SW16) are set to OFF.

•When a write command is used to communicate with 2001 status 1 (CH1 and CH2).

•Mode transitions can be simultaneously performed for either CH1 or CH2 under the following conditions.

•When key operations are performed in asynchronous mode (PA04=0). •Switch operations performed when either the CH1 operation cancel switch (SW15) or the CH2 operation cancel switch (SW16) is set to ON.

•When a write command is used to communicate with 261 status 1 (CH1) or 281W status 1 (CH2).

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