Mitsubishi Electronics AJ65SBT-64AD Manuel D’Utilisation

3 - 11

MELSEC-A

3   SPECIFICATION

3.5.2 Functions of the remote I/O signals

Table 3.5 explains the functions of the remote I/O signals of the AJ65SBT-64AD.

Table 3.5 Remote I/O Signal Details (1/2)

Device No.

Signal Name

Description

RXn0

to

RXn3

CH.

 

A/D Conversion

completion flag

The A/D conversion completion flag turns on at completion of the A/D conversion of

the corresponding channel when the initial data setting request flag (RY(n+1)9) turns

from off to on after power-on.

The A/D conversion completion flag processing is processed only once when the A/D

conversion enable/prohibit specification is changed.

 When changing the A/D conversion from prohibit to enable:

When the average processing is specified, the flag turns on after completing the

average processing of the number of times or time, and storing the A/D conversion

digital value in the remote register.

 When changing the A/D conversion from enable to prohibit:

The corresponding channel's A/D conversion completion flag turns off.

RXn4

to

RXn7

CH.

 

 

range error flag

Turns on when the value set for input range setting is outside the setting range.

Turns on if all channels are not set to any of "user range settings 1 to 3" at offset/gain

setting (in the test mode).

RXnC

E

2

PROM write error flag

Turns on if the number of E

2

PROM write times exceeds its limit (100,000 times per

channel). If this flag has turned on, this module itself has failed (hardware fault) and

therefore this flag cannot be reset (turned off) by the error reset request flag.

RXnF

Test mode flag

Turns on in the test mode.

(Used for interlock to prevent wrong output during offset/gain setting.)

RX(n+1)8

Initial data processing

request flag

After power-on, the initial data processing request flag is turned on by the AJ65SBT-

64AD to request the initial data to be set.

Also, after the initial data processing is complete (initial data processing completion

flag RY(n+1)8 ON), the flag is turned off.

RX(n+1)8

Initial data processing request flag

RY(n+1)8

Initial data processing completion flag

RX(n+1)9

Initial data setting completion flag

RY(n+1)9

Initial data setting request flag

RX(n+1)B

Remote ready

: Performed by sequence ladder
: Performed by AJ65SBT-64AD

RXn0 to RXn3

CH.    A/D conversion completion flag

 

RX(n+1)9

Initial data setting completion

flag

When the initial data setting request (RY(n+1)9 ON) is made, the flag turns on after

the initial data setting completion is done.

Also, after the initial data setting is complete, the initial data setting completion flag

turns off when the initial data setting request flag turns off.

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