Siemens SIMATIC PCS 7 OSx, Operator'S Manual, Page: 170 / 232

Action Requests
7-18
SIMATIC PCS 7 OSx 4.1.2 Operator
Example of Responding to Action Requests (continued)
The third action request is triggered when the reagent mixture reaches the
high-high alarm level. To answer the SET_TEMP action request, the
operator follows these steps:
1. Select the action request icon. The screen displays the Action Request
Summary dialog box. The summary shows the SET_TEMP action
request ( Figure 7-9 ). It is an Enter Value request.
REACTOR 27W IS FULL AND READY TO START. ENTER THE
CORRECT SOAK TEMPERATURE FOR THE BATCH BEING PRODUCED.
CONSULT THE DAILY PRODUCTION PLAN.
Comment:
SET_TEMP 19--AUG 11:07:14
User ID:
1 of 1
fmacsumm: Action Request Summary
URGENT
Last Value:
New Value:
120
150
View Commit Dismiss
Batch ID:
Figure 7-9 SET_TEMP Action Request
2. In the New Value field at the bottom left of the Action Request
Summary, enter a temperature value between 50 ° and 210 ° F.
In Figure 7-9 , the new value is 120 ° F. The temperature varies
according to the reagent being created. If an error is made, the operator
can reenter the value before committing it.
3. In the Comment field, enter an appropriate comment about the choice
of temperature.
4. Select the
Commit
option. OSx commits the value entered. The Operator
Change Log records this comment. Steam begins to flow into the steam
jacket and heats the mixture.
Answering the
SET_TEMP Action
Request