User`s manual

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MELSEC-A

3 SPECIFICATION

Table 3.5 Remote I/O Signal Details (2/2)

Device No. Signal Name Description

RX(n+1)A Error status flag

Turns on at occurrence of an input range setting error, average time/number of times

setting error or E

PROM write error (RXnC).

Does not turn on at occurrence of the watchdog timer error. ("RUN" LED goes off.)

RY(n+1)A

Error reset request flag

RX(n+1)A

Error status flag

: Performed by sequence ladder

: Performed b

AJ65VBTCU-68ADV/ADI

RWrn+8

Error code

RX(n+1)B Remote READY

Turns on when initial data setting is completed after power-on or at termination of the

test mode.

(Used for interlocking read/write from/to the master module.)

RY(n+1)8

Initial data processing

completion flag

Turns on after initial data processing completion when initial data processing is

requested after power-on or test mode operation.

RY(n+1)9

Initial data setting request

flag

Turns on at the time of initial data setting or changing.

RY(n+1)A Error reset request flag

When this flag turns on, the error status flag (RX(n+1)A) is reset, but the E

PROM

write error flag (RXnC) cannot be rest and therefore the error status flag remains on.

n: Address allocated to the master module by the station number setting.