Omron CJ1W-AD041-V1, Operation Manual

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Operating Procedure Section 7-2
7-2 Operating Procedure
Follow the procedure outlined below when using Analog I/O Units.
Installation and Settings
1,2,3... 1. Set the voltage/current switch at the back of the terminal block.
2. Wire the Unit.
3. Use the unit number switch on the front panel of the Unit to set the unit
number.
4. Turn ON the power to the PLC.
5. Create the I/O tables.
6. Make the Special I/O Unit DM Area settings.
• Set the I/O numbers to be used.
• Set the input and output signal ranges.
• Set the number of mean processing samplings.
• Set the output hold function
• Set the scaling function.
• Set the ratio conversion usage, the ratio set value, and the bias value.
• Set the conversion time and resolution.
7. Turn the power to the PLC OFF and ON, or turn ON the Special I/O Unit
Restart Bit.
When the input or output of the connected devices needs to be calibrated, fol-
low the procedures in
Offset Gain Adjustment below. Otherwise, skip to Oper-
ation below.
Offset and Gain Adjustment
1,2,3... 1. Set the voltage/current switch at the back of the terminal block.
2. Turn ON the power to the PLC.
3. Set to adjustment mode in the Special I/O Unit DM Area.
4. Turn the power to the PLC OFF and ON, or turn ON the Special I/O Unit
Restart Bit.
5. Adjust the offset and gain.
6. Set to normal mode in the Special I/O Unit DM Area.
7. Restart the Analog I/O Unit by turning ON the Special I/O Unit Restart Bit
or turn the power supply to the PLC OFF and ON.
Operation
Ladder program
• Read conversion values or write set values by means of MOV(021) and
XFER(070).
• Start and stop conversion output.
• Specify the peak hold function.
• Obtain disconnection notifications and error codes.