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Advant
®
Controller 450 User’s Guide
Chapter 2 Installation
2-70
3BSE 002 415R701 Rev A
2.5.3.3 Modify Permission
Executing units such as control module headers, see
, have built-in protection
against inappropriate attempts to change their contents. When the condition “Modify
Permission” (MODP) is deactivated for a control module, all attempts, from the engineering
unit, to change anything in the complete PC program are prevented.
“Modify Permission” is activated/deactivated via the engineering unit with the commands EMP
(Enable Modify Permission) and DIMP (Disable Modify Permission). You can obtain a list of
the status of all control modules in a PC program, with respect to “Modify Permission,” with the
command LMP (List Modify Permission).
When each individual control module has been tested and found to be correct, the “Modify
Permission” conditions of the module can be deactivated as an acknowledgment that the module
is verified and to avoid unintentional change of its contents. Blockings can still be set and
operational parameters changed if required.
2.5.3.4 Blocking and Deblocking of the PC Program
During a test of the application program, you can prevent the control system from affecting the
process in two ways:
•
By opening terminal switches on the connection units (or likely locations) to physically
isolate output signals from the process.
•
By blocking the updating of the data base with the help of certain commands.
Blocking commands and their use are listed below:
•
BL
Blocking of individual or all executing units in one or more PC programs.
•
BL,DB
Blocking of output to data base from individual or all executing units in
one or more PC programs.
•
BLRS
Blocking and resetting of individual or all executing units in one or more
PC programs.
•
DBL
Deblocking of individual or all executing units in one or more PC programs.
The blocking of a complete PC program gives the same result as blocking of all individual
executing units in a PC program (the command BL after the conclusion of entry of a PC
program blocks the program). The executing units can therefore be deblocked in succession
during commissioning. In this way, each program function can be verified sequentially and
program error or process error can be corrected before an attempt is made to test run the
complete PC program for the process.
Figure 2-27. “Modify Permission” in a Control Module
1
2
3
5
6
CONTRM
(C1,C2,C3)
ON
>SINGLE
R
RUN
MODP
Modify permission
Содержание Advant Controller 450
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Страница 496: ...Advant Controller 450 User s Guide Appendix C Delivery Documentation C 2 3BSE 002 415R701 Rev A ...
Страница 508: ...Advant Controller 450 User s Guide Appendix D Item Designations D 12 3BSE 002 415R701 Rev A ...
Страница 514: ...Advant Controller 450 User s Guide Appendix E Current Consumption and Heat Dissipation E 6 3BSE 002 415R701 Rev A ...
Страница 518: ...Advant Controller 450 User s Guide Appendix F Load Calculation F 4 3BSE 002 415R701 Rev A ...
Страница 522: ...Advant Controller 450 User s Guide Appendix G Memory Calculation G 4 3BSE 002 415R701 Rev A ...
Страница 528: ...Advant Controller 450 User s Guide Appendix H Halt Codes H 6 3BSE 002 415R701 Rev A ...
Страница 561: ...Advant Controller 450 User s Guide Index 3BSE 002 415R701 Rev A iii V Valve control 1 102 VT100 terminal 1 105 ...
Страница 562: ...Advant Controller 450 User s Guide Index iv 3BSE 002 415R701 Rev A ...
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Страница 564: ...3BSE 002 415R701 Rev A March 2000 ...