Hitachi H Series Instruction Manual page 136

No. Contents
6 CPU commu-
nication error
7 Overlap of station
number
8 Overlap of link
area
9 Outside of range
of station No.
10 Outside of range
of link area
11 Participation in
link without error
12 Check normal
13 Check error
Error
STATE display
LED *2
OFF
ON
ON
ON
ON
OFF
OFF
ON
Timing of ON
On occurrence
of an error in the
communication
with CPU (WD
time error of
system bus, sum
error of system
bus)
On occurrence
of overlap of
station number.
On occurrence
of overlap of
link allocations
area.
When dip
switch setting is
other than 0 - 63
When link area
designation
from the CPU is
outside of the
range
When
participation in
link is made
without error
17
Timing of
Remarks
OFF
･Reset *1
･Error reset
･Reset *1
･Error clear
after cancel-
lation of
error
･Reset *1
･Error clear
after cancel-
lation of
error
･Reset after
cancellation
of error *1
･Reset *1
･Error reset
･Reset *1
Normal
operation
･Reset *1
resents loop
back data and
changes at
fixed
intervals.
･Reset *1
resents the
data at the
time of
occurrence of
a loop back
error
rep-
rep-