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PROGRAMMING
8.3 Using Link Special Relay (SB) and Link Special Register (SW)
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(6) Detection of duplicated control station or station No.
The control station duplication and station No. duplication are checked through the
CC IE Control Network Diagnostics, but they also can be checked with link special
relay (SB) and link special register (SW). (
Section 10.3 CC IE Control Network
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). (
Section 5.4 Testing the CC-Link IE controller network module)
(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.
Table 8.24 SB/SW used in checking duplicated control station or station No.
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
Table 8.25 SB/SW used in checking hardware test results
No.
Description
No.
Description
SB0090
Hardware test completion status
—
SB0091
Hardware test normal/error completion status
Table 8.26 SB/SW used in checking self-loopback test results
No.
Description
No.
Description
SB0092
Self-loopback test completion status
—
SB0093
Self-loopback test normal/error completion status
Summary of Contents for QJ71GP21-SX
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