20030516
User’s Manual
56
STAR FINGER007
3. In case of setting RS422 communication, recommend to use line-end resistors of 120 Ohm
between the RX(+) and RX(-) lines and between the TX(+) and TX(-) lines, and apply the same
resistors to the converter RS422 lines. Consult a service center or an electric technician if you cannot
be sure how to do it.
4. When a multi-drop communication doesn’t work, test one-by-one communication first.
5. If the trouble remains after the procedure above, contact a designated service center.