1-4
Section
Operating Procedure
8
1-4
Operating Procedure
Follow the procedure outlined below when using Analog I/O Units.
Installation and Settings
1, 2, 3...
1. Set the DIP switch on the rear panel of the Unit to normal mode.
2. Wire the Unit.
3. Use the switch on the front panel of the Unit to set the unit number.
4. Turn on the power to the PC.
5. Make the DM area settings.
•
Set the I/O addresses to be used.
•
Set the input and output signal ranges.
•
Set the number of mean processing samplings. (AD003/MAD01 only)
•
Set the output hold function. (DA003/DA004/MAD01 only)
•
Set the ratio conversion usage, the ratio set value, and the bias value.
(MAD01 only)
6. Power up the PC again or turn the Special I/O Unit Restart Bit to ON and then
OFF again.
When the input or output of the connected devices needs to be calibrated, follow
the procedures in
Offset Gain Adjustment
below. Otherwise, skip to
Operation
below.
Offset Gain Adjustment
1, 2, 3...
1. Set the DIP switch on the rear panel of the Unit to adjustment mode.
2. Turn on the power to the PC.
3. Adjust the offset and gain.
4. Turn off the power to the PC.
5. Change the setting of the DIP switch on the rear panel of the Unit back to
normal mode.
Ladder program
•
Read conversion values or write set values by means of MOV(21) and
XFER(70).
•
Start and stop conversion output.
•
Specify the peak hold function.
•
Obtain disconnection notifications and error codes.
Operation
