Honeywell HPM - EHPM Functionality; EHPM Card;Module Types

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
provides +5 Vdc for both HPMM cards and
the EHPM FTE Interface module.