Seneca S6001-RTU, User Manual

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USER MANUAL – Z-TWS4/Z-PASS2-S/S6001-RTU
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19.1.4 GET_ALARMS
This FB retrieves all alarm records with the specified status from the DB;
the records are written as lines into the specified file.
INPUTS:
- STATUS : this parameter is handled as a "negative bitmask", meaning that this
FB will provide alarm records such that:
(alarms.stat & STATUS) = 0, where:
alarms.stat: DB field
STATUS: this parameter
- SEP_CHAR : the field separator to be used in the file lines; possible values:
" "|","|";"
- MAX_REC : the maximum number of records (lines) to be retrieved
- FILENAME : the file name, with absolute path
- @ENABLE: TRUE -> FB is executed
FALSE -> FB is skipped
the parameter is set to FALSE by the FB at the end of execution
OUTPUTS:
- RESULT: the FB result; possible values are:
0: FB still running
1: FB successfully executed
-1: FB execution failed
-2: FB execution timeout
- FIRST_ID : the id of the first record retrieved; this value shall be passed as
an argument to the SET_ALARMS_STAT FB
- LAST_ID : the id of the last record retrieved; this value shall be passed as
an argument to the SET_ALARMS_STAT FB
- REC_NUM : the number of records retrieved