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W&T
Serial PCI cards
Subject to error and alteration
Manual
Serial PCI Cards
Models 13011, 13410
13411, 13610
13611, 13812
Version 1.4
W&T
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W&T
Serial PCI cards
© 01/2005 by Wiesemann & Theis GmbH
Subject to errors and changes:
Since we can make mistakes, none of our statements should be
used without checking. Please let us know of any mistakes or
misunderstandings you are aware of, so that we can recognize
and eliminate them quickly.
Perform work on and with W&T products only as described here
and only if you have read and understood the manual fully. Unauthorized use can result in hazards. We are not liable for the
consequences of unauthorized use. When in doubt, check with
us or consult your dealer!
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W&T
Serial PCI cards
Subject to error and alteration
The gradual decline in ISA slots in modern PCs has made it necessary to make the functionality of ISA cards available for the
PCI bus as well.
W&T has responded by creating an entire family of serial PCI
interface cards which meet the needs of industrial automation
through integrated galvanic isolation of the PC ports and the
ability to equip the serial ports of the card with a variety of physical interfaces.
This PCI card family is described on the following pages along
with their technical specifications and wiring examples.
The inherent benefits of PCI with respect to easy installation
and automatic assigning of PC resources stand in contrast to
the fact that these cards are no longer supported by the operating system itself, but rather require driver software.
One exception is Linux, which in kernel version 2.4. and higher
supports the serial W&T PCI cards directly, without additional
driver software.
Current information on the new developments as well as the
newest driver releases can be found in the Internet at
http://www.wut.de or in the e-mail updates provided to members of the W&T Interface Club. Subscriptions to the Interface
Club can requested from the W&T homepage.
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W&T
Serial PCI cards
Contents
Inhalt
Serial Low Profile PCI Cards
General Characteristics ....................................................... 41
1x 20mA, 1kV isolated, #13410 .......................................... 45
1x RS232 / RS422 / RS485, 1kV isolated, #13610 ................. 49
Serial Standard PCI Cards
General Characteristics ....................................................... 55
Base board for interface modules, 1kV isolated, #13011 ........ 59
2x 20mA, 1kV isolated, #13411 .......................................... 61
2x RS422/RS485, 1kV isolated, #13611 .............................. 65
2x RS232, 1kV isolated, #13812 .......................................... 71
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W&T
Serial PCI cards
Subject to error and alteration
Low Profile PCI cards: General characteristics
Function
All serial Low Profile PCI cards add the functionality of maximum four additional serial ports to your PC. One of these ports
(Port 1) is integrated on the interface card, whereas three additional, optional ports (ports 2 through 4) are connected to the
circuit board through ribbon cable. These optional ports are
configured on the PCI card as serial TTL interfaces which can
be converted into any serial standard interface (RS232, RS422,
RS485 or 20mA) using W&T Interface Modules.
Adapting to the physical housing requirements
The serial interface cards are supplied with a short slot bracket
which enables installation in Low Profile PCI systems. A longer
slot bracket is provided for attaching the cards in standard PCI
systems; this is attached to the circuit board in place of the
short slot bracket.
To make the switch, remove the two threaded pins on the SUBD plug, remove the slot bracket and attach the new bracket to
the SUB-D plug using the threaded pins.
Port 2
Port 3
Port 4
Pin 1
Pin 1
Pin 1
Port 1
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W&T
Serial PCI cards
Galvanic isolation and ESD protection
Port 1 on all W&T Low Profile PCI interface cards is galvanically
isolated from the PC with an isolation voltage of at least 1kV
DC, whereas the optional ports 2 through 4 have no galvanic
isolation from the PC.
Galvanic isolation of the signals is implemented using fast
opto-couplers; driver and receiver chips are powered by a galvanically isolated DC/DC converter. Please note that the shielding for the port connectors has a direct connection to the
chassis ground of the PC using the metallic slot bracket.
The signal lines for the serial ports are protected against static
discharge for a voltage of up to 15kV per IEC 801-2, Level 4.
Driver and software installation
All the serial PCI interface cards are accessible under the various operating systems only using special drivers. These drivers are subject to continuous improvement both with respect
to their technical features and the number and type of supported operating systems.
For this reason W&T makes the current drivers and software installation manuals available on the data sheet pages for the PCI
cards in the Internet under http://www.wut.de.
Implementing optional ports 2 through 4
As an option all serial Low Profile interface cards are able to
also provide three additional serial ports in addition to the port
integrated on the card. These ports are configured on the card
as serial TTL interfaces which can be converted into the desired interface type by using interface modules.
It must be noted however that the optional ports 2 through 4
are not galvanically isolated from each other or from the PC, so
that these ports may be used only for connecting peripherals
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W&T
Serial PCI cards
Subject to error and alteration
where no ground potential differences can be expected. This
would include any peripherals which are located in the direct
vicinity of the PC and thus are powered from the same sub-division as well as peripherals which are inherently potential-free.
This generally applies to all devices which are powered from the
interface or by a plug-in power supply. In all other cases external galvanic isolation must be provided.
The additional interface modules are connected to the interface
card using 2mm ribbon cable and attached by means of a slot
bracket in the PC housing. Both components can be obtained
as a special accessory from W&T under article number 13014.
The ribbon cable connectors can be affixed to the interface card
as needed using standard cable ties.
1
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W&T
Serial PCI cards
Important notes
The serial W&T PCI cards may be equipped only with the 18x1x
series interface modules (e.g. 18811, 18813, 18611, 18411,
etc.) which have a supply voltage of 5V DC.
The use of 3.3V modules in the18x3x series (e.g. 18831,
18833, 18631, etc. ) will result in destruction of the interface
modules and/or the PCI card.
When installing you must ensure that the arrangement of the
ribbon cable and the interface modules corresponds to the drawing below. Otherwise the modules and/or the interface card
may be destroyed.
1
Port 3
Port 4
Pin 1
Pin 1
Interface
Module
Port 2
Interface
Module
Port 3
Pin 1
Optional fixing of
connectors by
cable straps
Pin 1
Pin 1
Interface
Module
Port 4
Pin 1
Port 2
Red Pin 1
Marking
Red Pin 1
Marking
Red Pin 1
Marking
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W&T
Serial PCI cards
Subject to error and alteration
Low Profile PCI card 1x 20mA, #13410
Function
The W&T PC card model 13410 provides a serial 20mA interface with galvanic isolation of 1kV DC on port 1. Ports 2 through 4 may also be used for any three, non-galvanically isolated serial ports.
Wiring configuration
The 20mA connection for the PC card is implemented as a DB9
plug. The connector pin assignments are shown in the following table:
Applications
A ground level signal on Pin 5 of the SUB-D connector can be
used to bring the 20mA interface into half-duplex mode, in
which there is echo suppression of the sent signals.
The PC card can be used as either an active or passive 20mA
component. In active mode the card provides the loop current
for the respective 20mA loop, whereas in passive mode the
connected device itself must provide the loop current.
pin# function
1 Data Out 20 mA
2 Data Out +
3 Data Out -
4 Data Out GND
5 Halfduplex control
6 Data In 20 mA
7 Data In +
8 Data In -
9 Data In GND
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W&T
Serial PCI cards
The operating mode can be set separately for both loops using
the external wiring of the card. Examples for wiring the PC card
in active/passive mode can be seen in the following drawings:
RxD +
RxD -
TxD +
TxD -
Active / Passive
20mA device
Active Tx and Passive Rx Current Loop Application
20mA Interface
1
2
3
4
6
7
8
9
Data Out 20mA
Data Out+
Data Out -
Data Out GND
Data In 20mA
Data In+
Data In -
Data In GND
RxD +
RxD -
TxD +
TxD -
Active
20mA Device
Passive Tx and Passive Rx Current Loop Application
20mA Interface
1
2
3
4
6
7
8
9
Data Out 20mA
Data Out+
Data Out -
Data Out GND
Data In 20mA
Data In+
Data In -
Data In GND
RxD +
RxD -
TxD +
TxD -
Passive
20mA Device
Active Tx and Active Rx Current Loop Application
20mA Interface
1
2
3
4
6
7
8
9
Data Out 20mA
Data Out+
Data Out -
Data Out GND
Data In 20mA
Data In+
Data In -
Data In GND
PCI card
13410
PCI card
13410
PCI card
13410
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W&T
Serial PCI cards
Subject to error and alteration
Technical Data
System bus: 32-bit bus / 33MHz
PCI standard: PCI2.2 / signal voltage: 5V
Serial ports: One galvanically isolated 20mA-port
Three non-isolated TTL-ports
Galvanic isolation: port 1: min. 1kV DC
port 2..4: No isolation
Modes: Active and passive mode
Full- and half-duplex mode
UART: 16950 with 128 bytes FIFO
Base addresses: automatic configuration
Interrupts: automatic configuration
Baud rate: 50..57.600 baud
Data format: any
Signals: RxD+, RxD-, TxD+, TxD-
Serial connections: 1x 9-pin. SUB-D plug
3x 12-pin. 2mm PCB plug
Supply voltage: +5V, typ. 180mA
Dimensions: 119.9 x 63.5 mm
Weight: approx. 110 g
Scope of delivery: Low Profile PCI card 1x 20mA
Standare slot bracket
Driver CD