Configuration; Procedure - Siemens 6ES7 972-4AA02-0XA0 User Manual

User´s Guide Power Rail Booster

5 Configuration

5.1 Procedure

Configuration is handled in steps with the aid of the „PRB-Checker" tool and
application-specific data as described below.
1. Checking to see whether there is a need for dividing the layout into multiple DP
master segments.
Prerequisites:
Knowledge of the total number of vehicles in the plant
-
- Knowledge of the maximum permissible typical bus cycle time for the
application
Division of the layout is always required when:
there are more than 125 vehicles in the plant
-
or
shorter typical bus cycle times are required
-
or
the base load of the infeed PRB is to be reduced
-
Result:
Number of DP master segments
-
Transmission speed used.
-
2. Checking to see whether there is a need to divide the number of DP master
segments specified in Step 1 into multiple PRB segments. This step must be
performed separately for each DP master segment specified in Step 1.
Prerequisites:
- Results from Step 1
„PRB Checker" configuring tool
-
- Layout of the plant with dimensions
Number of slaves in the relevant DP master segment
-
- Number of vehicles in the relevant PRB segment. Each Power Rail Segment
Controller connected to the segment also has to be treated as vehicle.
Length of the cable between collector and vehicle
-
- Maximum length of the data in the input/output bytes to be interchanged
between stationary control system and vehicle control system.
Division is always required when it is not possible
to supply the entire rail length of the relevant DP master segment
-
or
to supply the maximum possible number of vehicles in the relevant DP
-
master segment
with a stationary PRB.
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6ES7 972-4AA02-0XA0
Version 12/2005
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