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MELSEC-A
3 SPECIFICATION
3.5 Remote I/O Signals
This section describes the assignment and functions of the remote I/O signals.
3.5.1 Remote I/O signal list
Remote inputs (RX) mean the input signals from the AJ65SBT-64AD to the master
module, and remote outputs (RY) mean the output signals from the master module to
the AJ65SBT-64AD.
In communications with the master station, the AJ65SBT-64AD uses 32 points of the
remote inputs (RX) and 32 points of the remote outputs (RY). Table 3.4 indicates the
assignment and names of the remote I/O signals.
Table 3.4 Remote I/O Signals List
Signal direction: AJ65SBT-64AD Master Module Signal direction: Master Module AJ65SBT-64AD
Remote input (RX) Signal name Remote output (RY) Signal name
RXn0 CH.1 A/D conversion completion flag RYn0
CH.1 moving average processing
specifying flag
RXn1 CH.2 A/D conversion completion flag RYn1
CH.2 moving average processing
specifying flag
RXn2 CH.3 A/D conversion completion flag RYn2
CH.3 moving average processing
specifying flag
RXn3 CH.4 A/D conversion completion flag RYn3
CH.4 moving average processing
specifying flag
RXn4 CH.1 range error flag
RXn5 CH.2 range error flag
RXn6 CH.3 range error flag
RXn7 CH.4 range error flag
RXn8
to
RXnB
Reserved
RXnC
E
2
PROM write error flag
RXnD
RXnE
Reserved
RXnF Test mode flag
RX(n+1)0
to
RX(n+1)7
Reserved
RYn4
to
RY(n+1)7
Reserved
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)A Error status flag RY(n+1)A Error reset request flag
RX(n+1)B Remote READY
RX(n+1)C
to
RX(n+1)F
Reserved
RY(n+1)8
to
RY(n+1)F
Reserved
POINT
The reserved devices given in Table 3.4 are used by the system and cannot be
used by the user.
If the user has used (turned on/off) any of them, we cannot guarantee the functions
of the AJ65SBT-64AD.