Mitsubishi Electronics AJ65SBT-64AD user manual Functions of the remote I/O signals

3 SPECIFICATION

3.5.2 Functions of the remote I/O signals

MELSEC-A

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
			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
RXn0	CH.	A/D Conversion	conversion enable/prohibit specification is changed.
to				When changing the A/D conversion from prohibit to enable:
	completion flag
RXn3				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			Turns on when the value set for input range setting is outside the setting range.
to	CH.	range error flag	Turns on if all channels are not set to any of "user range settings 1 to 3" at offset/gain
RXn7			setting (in the test mode).
	E2PROM write error flag		Turns on if the number of E2PROM write times exceeds its limit (100,000 times per
RXnC			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.)
			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
	Initial data processing				RX(n+1)9
RX(n+1)8				Initial data setting completion flag
	request flag
					RY(n+1)9
				Initial data setting request flag
					RX(n+1)B
					Remote ready
					RXn0 to RXn3
			CH. A/D conversion completion flag
					: Performed by sequence ladder
					: Performed by AJ65SBT-64AD
			When the initial data setting request (RY(n+1)9 ON) is made, the flag turns on after
RX(n+1)9	Initial data setting completion		the initial data setting completion is done.
	flag		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.

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