Siemens S7-200 - Performing Typical or Routine Operator Tasks

Operating Your Text Display (TD) Device
5.6 Performing Typical or Routine Operator Tasks
Text Display (TD) User Manual
System Manual, 08/2008, A5E00765548-03
119
Bits Associated
with Alarms and
Screens
Enable Condition
for the Bit
Results shown on the TD Display Clear Condition for the Bit
ALARM
MESSAGE:
EMBEDDED
VARIABLE EDIT
NOTIFICATION
The edit
notification is
available only
when the alarm
contains a variable
and the user has
enabled the
Wizard option to
allow editing of the
variable. "Operator
is allowed to edit
this data". If the
alarm message
contains multiple
editable variables,
each variable has
a unique edit
notification bit.
The TD device will write the updated variable
value to the CPU and set the edit notification bit
for that variable when the operator presses the
ENTER key, completing the edit of the variable.
The user program can
monitor the edit notification
bit to recognize when an
editable value has been
changed by the operator.
The user program can then
take some action based on
the new value for the
variable.
The user program must clear
the edit notification bit so that
subsequent edits can be
recognized.
USER SCREEN:
EMBEDDED
VARIABLE EDIT
NOTIFICATION
The edit
notification is
available only
when the user
screen contains a
variable and the
user has enabled
the Wizard option
to allow editing of
the variable.
"Operator is
allowed to edit this
data".
If the user screen
contains multiple
editable variables,
each variable has
a unique edit
notification bit.
The TD device will write the updated variable
value to the CPU and set the edit notification bit
for that variable when the operator presses the
ENTER key, completing the edit of the variable.
The user program can
monitor the edit notification
bit to recognize when an
editable value has been
changed by the operator.
The user program can then
take some action based on
the new value for the
variable.
The user program must clear
the edit notification bit so that
subsequent edits can be
recognized.
5.6 Performing Typical or Routine Operator Tasks
Performing Typical or Routine Operator Tasks
The Operator Menu allows you to perform the following tasks:
● Determining the model and version of the S7-200 CPU (CPU Status)
● Viewing the error messages generated by the S7-200 CPU (CPU Status)