Honeywell HPM, Service

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2 Equipment Description
2.6 EHPM Card Files
46 HPM High-Performance Process Manager Service R688
Honeywell December 2020
EHPM functionality
The Enhanced High-Performance Process Manager Module (EHPM) provides:

Communications with the Local Control Network (LCN) Enhanced Network Interface Module
(ENIM) through the Enhanced Universal Control Network (EUCN)

A Communications processor ( Motorola 68LC040)

Communications through the I/O Link Interface with Input/Output Processors (IOPs) and I/O Link
Extenders

A Control processor (Motorola 68040)

Separate and shared memory for the Communications and Control processors

An I/O Link processor (Motorola 80C32) with SRAM

EHPM redundancy control
EHPM card/module types
The EHPM board set consists of the Enhanced High-Performance Com/Control PWA, High Performance
I/O Link PWA and FTE Interface Module. The interface module is mounted in the 50-pin connector
below the Enhanced High-Performance Communications/Control card in the first left-most card file slot.
The cards and the module are described in the following table.
Table 2.1 EHPM Card/Module Types
Card/Module Type Function
Enhanced High-Performance
Comm/Control Card Consists of:

a Communications (Comm) processor,

Control processor (Control)

separate and shared RAM for the
processors, interface to the HPMM Global
bus on the backpanel

FTE interface to the EHPM FTE Interface
module

redundancy interface to another HPMM

front panel LEDs and a four character
alphanumeric diagnostic display.
High-Performance I/O Link Card Consists of:

an I/O Link processor

SRAM through which the processor
communicates with the
Communications/Control card

an I/O Link driver/receiver interface

a +24 Vdc to +5 Vdc power converter that
pr5 Vdc for both HPMM cards and
the EHPM FTE Interface module.