SAP Flashcards
5 components of a PLC
- I/O system
- Processor
- Memory system
- Power supply
- Programming device
Original purpose of a PLC?
Replace relays
T/F
Supervisors are allowed to access work issued electronic devices.
True
Who can access their work email from home?
Everyone
How are acknowledged alarms deleted?
They’re acknowledged and conditions return to normal.
3 intersite modes of SCADA operation:
- Normal
- Fallback
- Back-up
Does SAP recognize when you have a clearance within a clearance?
No
What changes when you set a WCD as prepared?
In the maintenance screen you can only adjust the tagging/untagging sequence & the untagging condition. Cannot delete lines.
Color of switching for removal?
Red
Color of switching for placement?
Green
How many logons can you have open at once for SAP?
4
How many sessions can you have per logon for SAP?
6
Multiple choice-
A built list of shortcuts to transactions used most and other applications/webpages.
Favorites
Where can you check leave balances?
Quota Overview
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Function of a relay?
To perform repetitive and sequential operations that were previously performed by relays.
Is DWR allowed to monitor IT?
Yes
IT security violations:
Unauthorized access, compromised data….Loss, misuse or damage of equipment.
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Difference btw scheduled & actual time:
Scheduled - times that POC are interested in, unavailable time of the equipment including time for switching
Actual- the time maintenance has the equipment, does not include switching time
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3 categories of SCADA alarms:
- Critical
- Non-critical
- Event
Multiple choice-
What types of transactions are available in the user menu?
Only those for which the user has permission to access.
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What are variants?
They are the saved parameters in a transaction’s fields that auto populate upon opening the transaction.
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What does it mean if you still have a print tags icon visible?
Forgot to print something
What are the two main screens in operational switching?
- Maintenance screen
2. Switching screen
Chronological list of events
SOE
Samples points and sends data to FEP
RTU
Performs pre-processing and polls RTU to collect data
FEP
Modem
A
Host IDs
PCA or PCB
Set point & time scheduling function for gates
Time command
Assigns workspace responsibilities
Jurisdiction
Read/write memory
RAM
Connects PLC to field devices
I/O devices
Loses program if there’s a loss of power.
Volatile memory
Not affected by power loss
Non volatile
Process of reading, executing, updating
Scan process
Solid state device
PLC
Fixed program that cannot be changed- read only
ROM
Ladder diagram stored inside
Soft wired
Supervisory program that directs system activities
Executive memory
Programmed by the user
Application memory
