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10.2.25 Supervision of binary IO module#7 (BIO#7 error)
A supervision function is provided to detect the operation failure in the seventh binary IO
modules (BIO)†.
†Note: The function can operate for respective BIO modules mounted in the IED; the user
should have settings in them, which are located at the IO slot identified with the
number.
(i) Error level
Generally, the default error level has been set at level 1 (Serious error
1
). For example, the user
can program the level using setting [CHK_BIO7:LVl] when the BIO module at the IO#7
2
slot
should be supervised; then, set On for the setting [CHK_BIO7:Sw]. The manufacturer sets one
(1) second to detect the failure; it is reset with in a second when the failure is cleared.
1
Note: When the error is detected, the entire operation of the IED is stopped forcibly.
2
Note: The location of the IO slot is discussed in Chapter
Technical description: IED case
and module slot
.
(ii) Error message
When detecting an error, an error message can be shown on the LCD screen and an LED is lit.
Table 10.2-51 Error messages provided by the supervisor in CHK_BIO7
Meaning of the information
Detection of the BIO failure at IO slot#7
Table 10.2-52 Detailed information in Hexadecimal in CHK_BIO7
Meaning of the detailed information
00000001: CRC error
00000002: Connection error
00000004: Read back error
Count number by the CRC error
Count number by the connection error
Count number by the read-back error
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