In-depth Analysis of IOP and OOP
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Who has any materials on OOP and IOP parsing?
Process alarm: During the monitoring and control of instruments, if any abnormal conditions occur, corresponding alarms will be issued. NR: Normal response. IOP: Open circuit at high value (1000; default value +106.3). IOP-: Open circuit at low value (-1000; default value -6.3%). Reasons: 1. An open circuit in the input was detected. 2. The I/O module is damaged. 3. The block has not been scanned (O/S). 4. The data is outside the upper and lower limits. 5. Communication data failure. OOP: Open circuit alarm at output. Reasons: 1. An open circuit at the output was detected. 2. The I/O module is damaged. 3. The block is not scanned (O/S). If an OOP is detected, the control block is switched to manual mode, and the MV is frozen at its value before the open circuit.