Mitsubishi-electric QJ71C24N Manuel d'utilisateur télécharger pdf (Page 242)

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MELSEC-Q

9 DEDICATED INSTRUCTIONS

Function

(1) The function sends data stored in the device designated in (S2) and succeeding

devices according to the control data of the device designated in (S1) and

succeeding devices, via the bidirectional protocol of the module designated in Un.

(2) When a BIDOUT instruction is executed on a channel, other BIDOUT instructions

cannot be executed on that channel at the same time.

If an attempt is made during execution of a BIDOUT instruction to execute another

BIDOUT instruction, the second instruction will not be executed until the execution

of the first instruction is completed.

(3) Whether a BIDOUT instruction was completed normally or abnormally can be

checked by the completion device ((D)) or status display device at completion

((D)+1).

(a) Completion device: Turns on at the END processing of the scan where the

BIDOUT instruction is completed, and turns off at the next

END processing.

(b) Status display device

at completion

: Turns on and off depending on the completion status

of the BIDOUT instruction.

• Normal completion : Off with no change.

• Abnormal completion: Turns on at the END

processing of the scan where

the BIDOUT instruction is

completed, and turns off at

the next END processing.

[Operation during execution of a BIDOUT instruction]

BIDOUT instruction

Execution of BIDOUT

instruction

Completion of transmission by

a BIDOUT

OFF

END

processing

END

processing

END

processing

END

processing

Sequence

program

Completion device

Status display device

at completion

Abnormal

completion

Normal

completion

One scan

Error

(1) When a dedicated instruction is completed abnormally, the abnormal completion

signal (D)+1, turns on and the error code is stored in the transmission result (S1)+1.

In case of operation errors, the error flag (SM0) turns on and the error code is

stored in SD0.

See one of the following manuals according to the error code, and check and

correct the error.

4FFF

or less : QCPU(Q Mode) User's Manual

(Hardware Design, Maintenance and Inspection)

7000

or more: Section 10.2 of the User's Manual (Basic)

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Mitsubishi-electric QJ71C24N Manuel d'utilisateur Page 242

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Mitsubishi-electric QJ71C24N Manuel d'utilisateur Page 242

Commentaires sur ces manuels

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