8
PROGRAMMING
8.3 Using Link Special Relay (SB) and Link Special Register (SW)
8
- 44
1
O
V
ER
VI
E
W
2
SYST
EM
CO
NF
IG
URA
T
IO
N
3
SPECI
F
IC
A
T
IO
N
S
4
F
UNCT
IONS
5
PREP
ARA
T
IO
N AND
SET
UP
6
P
A
RAM
E
T
E
R
SET
TI
NG
7
PRO
C
ESSI
NG
T
IM
E
8
PRO
G
R
AM
M
ING
(b) Checking for cable faults of own station
1) When an own station cable has fault, any of SB0066 to SB0069 and SB006C
to SB006F is turned ON.
2) The rate of line error occurrence can be checked in SW0068 to SW0069 and
SW006A to SW006B.
When Clear IN-side transmission error count (SB0007) is turned ON, SB006E
and SW0068 to SW0069 can be cleared.
When Clear OUT-side transmission error count (SB0008) is turned ON,
SB006F and SW006A to SW006B can be cleared.
Table 8.18 SB/SW used in checking cable faults of own station
No.
Description
No.
Description
SB0007
Clear IN-side transmission error count
—
SB0008
Clear OUT-side transmission error count
SB0066
Own station's IN-side link-up status
SB0067
Own station's OUT-side link-up status
SB0068
Own station's IN-side link establishing status
SW0068
IN-side line error occurrence rate (Max.)
SB0069
Host station OUT-side link establishment status
SW0069
IN-side line error occurrence rate (present.)
—
SW006A
OUT-side line error occurrence rate (Max.)
SW006B
OUT-side line error occurrence rate (present.)
SB006C
Own station's IN-side error frame reception status
—
SB006D
Own station's OUT-side error frame reception status
SB006E
Own station's IN-side error frame detection
SB006F
Own station's OUT-side error frame detection
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