ABB Advant Controller 450 User Manual

Advant
®
Controller 450 User’s Guide
Section 2.6.3 General Guidelines
3BSE 002 415R701 Rev A 2-81
Disconnection of the mains supply may have impact on dynamic information stored in the
application program. For example counter/register content, integrator content and so on, will be
lost if not secured by special considerations in the application program design. However this is
general design considerations. The controller should manage “normal” mains supply
interruptions.
Data Base Dimensioning
Table 2-18 notes the requirement of data base dimensioning.
Sometimes an on-line implementation presupposes that the data base is dimensioned for the
additional function in advance, that is, at the original setup and start-up of the system, it is
recommended that you plan for future enlargement. This is especially true for I/O boards, whose
numbers are commonly enlarged during the commissioning.
When planning for future additional functions, for example, communication, also reflect upon
the need of application functions attached, and the corresponding need for spares in the data
base, for example, DAT, Data Set, MVI Set. These application requirements are not included in
the statement of Yes or No concerning dimensioning of the data base in Table 2-18.
Do not overstress reserving spares. You can always redimension the data base. You must do it,
however, off-line.
See below for a brief description of how to perform the dimensioning/redimensioning (look
under the heading Dump of Application Program).
See the manual AMPL Configuration Advant Controller 400 Series for detailed instructions.
Dump of Application Program
If dimensioning of the data base is prescribed and no spare is left or if you need to implement
new system software, the following guidelines apply.
Before installing a new additional function, dump the data base and PC program.
Use the dump command DUTDB for the data base.
Use the dump command DUTPT for the PC program.
When loading (LOTDB and LOTPT, respectively), you can select, among other things,
REDIMENSIONING.
When the new function includes software (on a new program card), then the data base is
dumped as object code. Use the command DUTDB. The PC program is dumped as source code.
Use the command DUPCS.
You need only dump the data base as source code in one case - when the compatibility code for
the data base is changed. This is normally performed with new releases and not with revisions.

ABB Advant Controller 450 Specifications

General

Brand	ABB
Model	Advant Controller 450
Category	Controller
Language	English