SAP,SCADA Flashcards
What are two of the main operational switching screens in SAP
maintenance screen
switching screen
T/F the department ma monitor the use of all it resources including internet usage and network traffic
t
T/F A supervisor’s access to the information stored on the computer or backup media should be treated in the same manner as access to the employees desk and paper files
t
T/F users must report asap when they discover there has been an information asset security violation. this covers physical and electronic
t
T/F The user menu contains all of the transactions that you as a user have the authorization to run
t
Selection variant
is a way of saving a set of values in fields within a transaction so that they are already defaulted into the transaction for you or for others when the transaction is entered
Where can you check your leave balance
pt50 Quota Overview
T/F After setting prepared you cannot make changes to existing lines except for sequencing or adding more text
t
after setting prepared you will have to un-prepare and
mark the line inactive and then add in a new line to replace the old one
if you can still see the print tag icon
you have forgotten to print something
rtu
remote terminal unit - collects and transmits field data to the host system and executes supervisory control. SAMPLES field points and gives info to FEP.
fep
front end processor - offloads the enabled host by handling rtu communications and limited data processing.
scada is short for
supervisory control and data acquisition
fep does
polls all rtus to collect data
performs preprocessing of data prior to sending it to host computer
intersite operating modes
normal
fallback
backup
three alarms
critical
non critical
event
5 parts of plc
input output processer memory powersupply
plc: the I/o system is physically connected to field devices that are present in machines or control processes T/F
t
the ___ is softwired or programmed into the plc cpu rather than hardwired in a control panel
ladder diagram
this process of reading the inputs, executing the program, and updating the outputs is known as the
scan
executive memory
is a collection of permanently stored programs that are considered part of the plc itself./ these supervisory programs direct all system activities
application memory
provides a storage area for the user programmed instructions that form the application program
volatile memory
loses its programmed contents if all operating power is lost or removed
nonvolatile memory
retains its programmed contents, even during a complete loss of operating power, without requiring a backup source
