OPERATING PROCEDURES
INTERFACE POINT CAPACITY
I-E96-624A
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downloads the interface configuration to the secondary (redun-
dant modules are identically configured to their primary coun-
terpart). If the primary interface fails, the redundant unit takes
over and re-establishes the point data.
INTERFACE POINT CAPACITY
There are three factors that determine the maximum number
of points in a PPT configuration. Those factors are: point type
(exception report data type), the number of devices that receive
interface generated exception reports and the total memory
available (440,000 bytes). Table
lists the required memory
bytes for all point types when memory usage is for:
1. The local PPT receiving points from the remote PPT.
2. The remote PPT (in two-way mode) receiving points from
the local PPT.
Table
lists the required memory bytes for all point types
when the memory usage is for:
1. The remote PPT sending points to the local PPT.
2. The local PPT (in two-way mode) sending points to the
remote PPT.
NOTE: The PPT has a capacity of 5,000 blocks.
Table 4-3. Memory Usage in Receiving Communication
Point Type
Memory Bytes
Required
Digital
16
Analog
30
Station
76
Remote Control Memory (RCM)
22
Remote Manual Set Constant (RMSC)
38
Device Driver
22
NOTE: Add 6 bytes per point per destination being sent.