Yaskawa SmartTrac DM6420 Multi I/O Card - Manual (Page 20)

Smart Trac DM6420 Multi I/O Card
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Configuring the Smart Trac DM6420 Multi I/O Card Technical Manual
When using the differential mode:
1. Install a 10 kilohm resistor pack at location RN2 on the module to
provide a reference to ground for signal sources without a separate
ground reference.
2. Connect the high side of the analog input to the selected analog input
channel, AIN1+ through AIN8+,
3. Connect the low side of the input to the corresponding AIN- pin.
4. For signal sources with a separate ground reference, connect the ground
from the signal source to an ANALOG GND (pins 18 and 20-22 on
CN3).
Figure 7 shows how these connections are made.
Connecting Analog Outputs
To make an Analog Output connection, for each of the two D/A outputs:
1. Connect the high side of the device receiving the output to the AOUT
channel (CN3-17 or CN3-19).
2. Connect the low side of the device to an ANALOG GND (CN3-18 or
CN3-20).
Connecting Digital I/O
Digital connections consist of two eight-bit ports. Port 0 direction (Input or
Output) is bit-programmable. Port 1 direction (Input or Output) is byte (port)
programmable.
To make a Digital I/O connection:
1. Connect the high side of an external signal source or destination device
to the appropriate signal pin on the I/O connector.
2. Connected the low side to any DIGITAL GND.