8 of 54 PSS5000/CONF/804473/40
PSS 5000 – Hardware Configuration Guide
Selecting the CPU Board and Interface Modules
6. Use the No. and HIM Connections values to determine how many HIMs you
require for each protocol.
In the example, the Gilbarco pumps use DSB492. Each DSB492 can have
8 pumps connected to it. Therefore, to connect 18 pumps you need to use
3 DSB492 modules.
7. Add all the Width values for the individual modules. In this example, the
total width for all the modules is 11 single-module units.
Using the cabinet specifications, you can see that the standard cabinet,
which houses 14 single-module units, must be used and that no extension
rail is required here.
8. Use the CPU Board Specifications table to select the board that you need
to use.
By looking at your list, you can see that 4 different protocols are used. But
because the Protocol/Interface Type combination (Gilbarco, 2-wire/Cur-
rent Loop) restricts the maximum number of devices on a CPU board port
to 16, you need to use 2 ports. This means that you require at least 5 ports
on the CPU board. Therefore, either the CPB509 or CPB539 must be used.
If the CPB505-2 had met the requirements, you must always consider what
may be required in the future before you make your board selection.
Note: PSS Application software require the following: Program Type 411
requires a CPB509 or CPB505-2. Program Type 410 runs on all
CPB50x systems. Program Type 452 requires a CPB539.
Device
Manufacturer
No.
Protocol
Interface
Type
HIM
HIMs Required
Name
Connections
Stock No.
Width
Pumps Gilbarco 18 2-wire Current Loop DSB492 8 140042 2 3
Pumps Wayne 2 Wayne Dart RS485, 2-wire DSB453 4 133768 2 1
TGS Veeder-Root 1 Veeder-Root RS232 (3-wire) DSB347 1 133845 1 1
Price Poles Innosign 2 IBIS RS232 (3-wire) DSB347 1 133845 1 2
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