Internal Self-Loopback Test - Mitsubishi Electric SW0DNC-MNETH-B User Manual

6 PROCEDURE AND SETTINGS UP TO THE POINT OF OPERATION

6.5.2 Internal self-loopback test

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In this section, a check of the hardware, including the transmission and reception lines
in the transmission on the MELSECNET/H board itself, is conducted.
(1) Optical fiber cables are not connected to the Q80BD-J71LP21-25, Q81BD-
J71LP21-25, Q80BD-J71LP21S-25, Q80BD-J71LP21G and Q80BD-J71LP21GE
(for the optical loop system). However, be careful that no external light enters
from outside the connectors.
In the case of the Q80BD-J71BR11 (for the coaxial bus system), do not connect
terminal resistors to the two Type F connectors.
(2) Set the mode setting in the "Board Information" screen of the MNETH utility on
"Internal self-loopback test."
MELSEC
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