IAI RoboNet Operation Manual page 269

(7) Connect the power supply (+24 V, 0 V) to the unit positioned at the far left in each stage using a twisted
pair cable. The power rise timing should be the same for all stages.
[1] Example of supplying power from one power supply
[2] Example of supplying power from multiple power supplies
24-V power supply
24-V power supply
Caution
1. Use a common 0-V line for the power supply connected to each stage.
2. Be sure to install the RABU unit (simple absolute R unit) paired with each RPCON unit or RACON unit in the same row
(stage) as the applicable controller unit.
3. Keep the total distance of internal SIO communication lines of the ROBONET system (distance from the GateWayR unit
to the terminal resistor of the last controller) to 30 m or less.
GatewayR unit
24-V power supply
Extension unit
Part 2 Startup Chapter
Extension unit
249