8
PROGRAMMING
8.3 Using Link Special Relay (SB) and Link Special Register (SW)
8
- 46
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
Example) The following shows an example of a cable insertion error.
• When station No. 1, 2, and 4 are monitored
The IN-side cable insertion error status of station No. 3 is stored into the link
special register (SW) in values as shown below
.
The OUT-side cable insertion error status of station No. 3 is stored into the link
special register (SW) in values as shown below.
• When station No. 3 is monitored
Since station No. 3 is disconnected from the network, the values are stored
into the link special register (SW) as shown below.
Figure 8.62 Checking cable insertion errors with other stations
Table 8.20 IN-side cable insertion error status
No.
Description
Value to be stored
SW0080
OUT-side loopback station No.
4
SW0081
OUT-side loopback factor
30
H
SW0082
IN-side mis-cabling station No.
3
Table 8.21 OUT-side cable insertion error status
No.
Description
Value to be stored
SW0070
IN-side loopback station No.
2
SW0071
IN-side loopback factor
03
H
SW0072
OUT-side mis-cabling station No.
3
Table 8.22 Status of station No. 3
No.
Description
Value to be stored
SW0064
Own station's loop status
33
H
Control station
No.1
IN
OUT
IN
OUT
IN
OUT
IN
OUT
Normal station
No.2
Normal station
No.3
Normal station
No.4
CPU module
CC-Link IE
controller
network module
Power supply
CPU module
CC-Link IE
controller
network module
Power supply
CPU module
CC-Link IE
controller
network module
Power supply
CPU module
CC-Link IE
controller
network module
Power supply
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