I/O Signals Against The Plc Cpu; List Of I/O Signals - Mitsubishi Electric A1S66ADA User Manual

3 SPECIFICATION

3.5 I/O Signals Against the PLC CPU

3.5.1 List of I/O signals

Signal Direction A1S66ADA
Device No.
X00 to X0B
X0C to X0F
X10 to X1B
X1C to X1F
X20 to X2B
X2C to X2F
X30 to X3B
X3C to X3F
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The A1S66ADA utilizes 64 input points and 64 output points for the communication
with the PLC CPU.
The device numbers of the I/O signals and signal names are shown in Table 3.3.
The device X indicates the input signal from the A1S66ADA to the PLC CPU, and the
device Y the output signal from the PLC CPU to the A1S66ADA.
The I/O numbers indicated the occasion when the A1S66ADA is installed in the "slot 0"
of the basic base.
Table 3.3 List of the A1S66ADA I/O signals
PLC CPU
Signal Name
CH3 digital output value
Usage disable
CH4 digital output value
Usage disable
CH5 digital output value
Usage disable
CH6 digital output value
Usage disable
POINT
• Do not output (turn ON) the "usage disable" signal as an output signal to special
modules from the PLC CPU. Outputting the "usage disable" signal may cause
PLC system malfunctions.
Signal Direction PLC CPU
Device No.
Y00 to Y0B CH1 digital value setting
Y0C to Y0E
CH1 D/A conversion value output
Y0F
Y10 to Y1B CH2 digital value setting
Y1C to Y1E
CH2 D/A conversion value output
Y1F
Y20 to Y3F
MELSEC-A
A1S66ADA
Signal Name
Usage disable
enable flag
Usage disable
enable flag
Usage disable
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