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CHAPTER 8 PROGRAMMING
8
8.3 Using Link Special Relay (SB) and Link Special Register (SW)
(6) Detection of duplicated control station or station No.
The control station duplication and station No. duplication are checked through the CC IE Control diagnostics, but
they also can be checked with link special relay (SB) and link special register (SW). ( Page 526, Section
10.3)
1. Check the station No. of a station where an error has occurred with Parameter error status of each
station (SW00E0 to SW00E7).
2. Monitor the station No. checked in above 1.
3. When the control station or station No. is duplicated, Data link status of own station (SB0049) is
turned ON.
4. The cause is stored in Cause of data link stop (SW0049).
(7) Checking results of the CC-Link IE Controller Network module test
The test result is checked through LED of the CC-Link IE Controller Network module main frame, but it also can
be checked with link special relay (SB) and link special register (SW). ( Page 150, Section 5.4)
(a) Checking hardware test results
1. When the hardware test is completed, Hardware test completion status (SB0090) is turned ON.
2. When failed, Hardware test normal/error completion status (SB0091) is turned ON.
(b) Checking self-loopback test results
1. When the self-loopback test is completed, Self-loopback test completion status (SB0092) is turned
ON.
2. When failed, Self-loopback test normal/error completion status (SB0093) is turned ON.
No. Description No. Description
SB0049 Data link status of own station SW0049 Cause of data link stop
—
SW00E0
to
SW00E7
Parameter error status of each station
No. Description No. Description
SB0090 Hardware test completion status
—
SB0091 Hardware test normal/error completion status
No. Description No. Description
SB0092 Self-loopback test completion status
—
SB0093
Self-loopback test normal/error completion
status
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