SERIES PMC440 PCI MEZZANINE CARD 32-CHANNEL ISOLATED DIGITAL INPUT MODULE
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A PCI bus write to the PMC module will result in 1)
immmediately accepting the write data and normal cycle termination
or 2) issue of a retry termination. A retry termination will be issued if
the previous write cycle has not completed on the PMC module. It
will typically take the PMC module 1000ns to write the data to the
required internal register. Thus if another write cycle is initiated on
the PCI bus before the typical 1000ns has lapsed, the write cycle will
be terminated with a retry.
A programmable logic device provides the control signals
required to operate the board. It decodes the selected addresses,
control signals, and interrupt handling. It also returns the
acknowledgement signal required by the carrier/CPU board per the
PMC specification. The program for the gate array is stored in
separate PROM memory and loaded upon power-up.
PMC Module Software
Acromag also provides a software product (sold separately)
consisting of PMC module ActiveX (Object Linking and Embedding)
controls for Windows 98, 95
, ME, 2000 and Windows NT
compatible application programs (Model PMCSW- ATX, MSDOS
format). This software provides individual controls that allow
Acromag PMC modules to be easily integrated into Windows
application programs, such as Visual C++
, Visual Basic
,
Microsoft
Office
97 applications and others. The ActiveX
controls provide a high-level interface to PMC modules, eliminating
the need to perform low-level reads/writes of registers, and the
writing of interrupt handlers—all the complicated details of
programming are handled by the ActiveX controls. These functions
consist of an ActiveX control for each Acromag PMC module.
In adddition, Acromag provides a software product (sold
separately) consisting of PMC module VxWorks
libraries. This
software (Model PMCSW-API-VXW, MSDOS format) is composed
of VxWorks
(real time operating system) libraries for all Acromag
PMC modules. The software is implemented as a library of “C”
functions which link with existing user code to make possible simple
control of all Acromag PMC modules.
5.0 SERVICE AND REPAIR
SERVICE AND REPAIR ASSISTANCE
Surface-Mounted Technology (SMT) boards are generally
difficult to repair. It is highly recommended that a non-functioning
board be returned to Acromag for repair. The board can be easily
damaged unless special SMT repair and service tools are used.
Further, Acromag has automated test equipment that thoroughly
checks the performance of each board. When a board is first
produced and when any repair is made, it is tested, placed in a burn-
in room at elevated temperature, and retested before shipment.
Please refer to Acromag's Service Policy Bulletin or contact
Acromag for complete details on how to obtain parts and repair.
PRELIMINARY SERVICE PROCEDURE
Before beginning repair, be sure that all of the procedures in
Section 2, Preparation For Use, have been followed. Also, refer to
the documentation of your carrier/CPU board to verify that it is
correctly configured. Replacement of the module with one that is
known to work correctly is a good technique to isolate a faulty
module.
CAUTION: POWER MUST BE TURNED OFF BEFORE
REMOVING OR INSERTING BOARDS
Acromag’s Application Engineers can provide further technical
assistance if required. When needed, complete repair services are
also available from Acromag.
6.0 SPECIFICATIONS
PHYSICAL
Physical Configuration…….…... Single PMC Module.
Height..............................… 15.11mm (0.595 in).
(See Drawing 4501-859)
Stacking Height.................…10.0 mm (0.394 in).
Length...............................…149.0 mm (5.866 in).
Width..............................….. 74.0 mm (2.913 in).
Board Thickness.............…. 1.59 mm (0.062 in).
Connectors:
PCI Local Bus Interface...... Two 64-pin female receptacle
header (AMP 120527-1 or
equivalent).
Field I/O……..................…. 50-pin, SCSI-2, female receptacle
header (AMP 787082-5 or
equivalent).
Power Requirements
PMC440
5V
1
Typical
160 mA
(
±
5%)
Max.
185 mA
+12V
Typical
Not Used
(
±
5%)
Max.
-12V
Typical
Not Used
(
±
5%)
Max.
1.
Maximum rise time of 100 millisecends
ENVIRONMENTAL
Operating Temperature.......…… 0 to +70
°
C.
Relative Humidity….....................5-95% Non-Condensing.
Storage Temperature.…............. -55
°
C to 125
°
C.
Isolation……....................…...…. Logic and field connections are
optically isolated (see INPUT
specifications). Individual ports
are also isolated from each other.
However, input lines of individual
ports share a common connection
and are not isolated from each
other. Separate port commons are
provided to facilitate port-to-port
isolation. Logic and field lines are
isolated from each other for
voltages up to 250VAC, or 354V
DC on a continuous basis (unit will
withstand a 1500V AC dielectric
strength test for one minute
without breakdown). This complies
with test requirements outlined in
ANSI/ISA-S82.01-1988 for the
voltage rating specified.
Radiated Field Immunity (RFI).. Designed to comply with IEC1000-
4-3 Level 3 (10V/m, 80 to
1000MHz AM & 900MHz. Keyed)
and European Norm EN50082-1
with no data upsets.
