ASDA-A User Manual
Chapter 8 MODBUS Communications
© DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
4th Edition 2005/11/30, HE03
8-3
Note:
1. Recommended maximum cable length is 100m. Please note, RFI / EME noise should be kept to
a minimum, communication cable should kept apart from high voltage wires. If a
transmission speed of 38400 bps or greater is required the maximum length of the
communication cable is 15m which will ensure the correct and desired baud rate.
2. The number shown in the pervious figure indicates the terminal number of each connector.
3. The power supply should provide a +12V and higher DC voltage.
4. Please use a REPEATER if more than 32 synchronous axes are required. A maximum number
of 254 axes (drives or RS-482 / RS-422 devices) can be connected.
5. For the terminal identification of CN3, please refer to section 3-5.