SeaLevel PLC-16.PCI Manuel utilisateur

PLC-16.PCI

User Manual | 8011

Contents

INTRODUCTION ................................................................................................................................................... 3

BEFORE YOU GET STARTED ...............................................................................................................................4

SOFTWARE INSTALLATION ................................................................................................................................6

PHYSICAL INSTALLATION..................................................................................................................................7

PROGRAMMING THE PLC-16.PCI.......................................................................................................................8

ELECTRICAL CHARACTERISTICS.....................................................................................................................17

SPECIFICATIONS ...............................................................................................................................................17

EXAMPLE CIRCUITS ..........................................................................................................................................19

APPENDIX A – TROUBLESHOOTING................................................................................................................20

APPENDIX B – HOW TO GET ASSISTANCE .....................................................................................................21

APPENDIX C – SILK SCREEN - 8011 PCB ........................................................................................................22

APPENDIX D – COMPLIANCE NOTICES ..........................................................................................................23

WARRANTY ........................................................................................................................................................24

Introduction

The PLC-16.PCI provides 8 Form C relays that can switch and carry 2A loads making it suitable for latching

power, data, or other electronic signals for control applications. Eight optically isolated inputs (rated for 5-

30V) are also provided to allow monitoring of off board switch closures, relays or for any other general

purpose monitoring needs. The PLC-16.PCI is optimized for 24V DC/AC usage. The board is PCI bus

specification 2.1 compliant.

The PLC-16.PCI is designed to be used with a variety of Operating Systems including Windows

98/NT/ME/2000/XP, Linux, and DOS. The SeaI/O API (Application Programmer Interface) included in the

software provides a variety of useful high-level function calls implemented as a Windows dynamic link

library (DLL) and as a Linux kernel module and library. In addition to the API, SeaI/O includes sample code

and utilities to simplify software development.

Other Sealevel PCI Digital I/O Products

PIO-24.PCI (P/N 8008) - 24 TTL Inputs/Outputs

PIO-32.PCI (P/N 8010) - 32 TTL Inputs/Outputs

PIO-48.PCI (P/N 8005) - 48 TTL Inputs/Outputs

PIO-96.PCI (P/N 8009) - 96 TTL Inputs/Outputs

PLC-16.PCI (P/N 8002) - 8 Reed Relay Outputs/8 Opto-isolated Inputs

REL-16.PCI (P/N 8003) - 16 Reed Relay Outputs

DIO-32.PCI (P/N 8004) - 16 Reed Relay Outputs/16 Opto-isolated Inputs

ISO-16.PCI (P/N 8006) - 16 Opto-isolated Inputs

REL-32.PCI (P/N 8007) - 32 Reed Relay Outputs

Before You Get Started

What’s Included

The PLC-16.PCI is shipped with the following items. If any of these items is missing or damaged, please

contact Sealevel for replacement.

•PLC-16.PCI Adapter

Advisory Conventions

Warning

The highest level of importance used to stress a condition where damage could result to the

product, or the user could suffer serious injury.

Important

The middle level of importance used to highlight information that might not seem obvious or a

situation that could cause the product to fail.

Note

The lowest level of importance used to provide background information, additional tips, or other

non-critical facts that will not affect the use of the product.

Optional Items

Depending upon your application, you are likely to find one or more of the following items useful for

interfacing the PLC-16.PCI to real-world signals. All items can be purchased from our website

(www.sealevel.com) or by calling (864) 843-4343.

•DB44 Male to DB44 Female 6’ Cable (Part Number CA185)

−High Density DB44 Male to Female extension

cable.

•DB44 Male Terminal Block (Part Number TB08-KT)

−The TB08-KT, designed for use with the

Sealevel 8011, eases field wiring of 8 optically

isolated inputs and 8 Form C relay outputs.

The terminal block has an HD44 male

connector that breaks out to 28 screw

terminals.

•Cable and Terminal Block Kit (Part Number KT108)

−Includes CA185, TB08-KT, 6” Snap Track, and

DIN rail clips.

•DB44 Male to DB37 Male/Female V-Cable (Part Number CA184)

−Optional cable for 8011 with a DB44 connector

that breaks out to one DB37 Female connector

for Inputs and one DB37 Male connector for

Outputs.

•DB37 Male/Female Terminal Block (Part Number TB02-KT)

−Break out serial and digital connectors to 37

screw terminals for easy field connection. The

TB02 terminal block is designed with both

DB37 male and female connectors, therefore; it

can be used with any DB37 board regardless of

the board's port gender.

•Cable and Terminal Block Kit (Part Number KT109)

−Includes CA184, two TB02-KT, 6” Snap Track,

and DIN rail clips.

Software Installation

Windows Installation

Do not install the adapter in the machine until the software has been fully installed.

Only users running Windows 7 or newer should utilize these instructions for accessing and installing

the appropriate driver via Sealevel’s website. If you are utilizing an operating system prior to

Windows 7, please contact Sealevel by calling 864.843.4343 or emailing [email protected] to

receive access to the legacy driver download and installation instructions.

1. Select the download for the SeaIO Classic for Windows (Software: SeaIO Classic V5 - Windows

- Sealevel.) The setup file will automatically detect the operating environment and install the

proper components. Next (depending on your browser) select the ‘Run this program from its

current location’ or ‘Open’ option. Follow the information presented on the screens that follow.

During setup, the user may specify installation directories and other preferred configurations.

This program also adds entries to the system registry that are necessary for specifying the

operating parameters for each driver. An uninstall option is also available to remove SeaIO

files and registry/INI file entries from the system.

2. A screen may appear with the declaration: “The publisher cannot be determined due to the

problems below: Authenticode signature not found.” Please select the ‘Yes’ button and

proceed with the installation. This declaration simply means that the Operating System is not

aware of the driver being loaded. It will not cause any harm to your system.

3. During setup, the user may specify installation directories and other preferred configurations.

This program also adds entries to the system registry that are necessary for specifying the

operating parameters for each driver. An uninstall option is also included to remove all

registry/INI file entries from the system.

Windows software installation is complete.

Windows NT Card Installation: After accomplishing the above steps, bring up the Control Panel and

double-click on the SeaIO Devices icon. To install a new card, click "Add Port". Repeat this procedure

for as many SeaIO cards as you wish to install.

Linux Software: You may download the SeaIO Classic for Linux Windows for the 8011. If you need

additional information with this installation, please contact Sealevel’s Technical Support:

[email protected].

Physical Installation

The adapter can be installed in any 5V PCI expansion slot.

Do not install the adapter in the machine until the software has been fully installed.

1. Turn off PC power. Disconnect the power cord.

2. Remove the PC case cover.

3. Locate an available 5V PCI slot and remove the blank metal slot cover.

4. Gently insert the PCI adapter into the slot. Make sure that the adapter is seated

properly.

5. After the adapter has been installed, the cables should be routed thru the opening in

the bracket. This bracket also features a strain relief function that should be used to

prevent un-expected cable removal.

6. Replace the screw you removed for the blank and use it to secure the adapter into the

slot. (This is required to ensure FCC Part 15 compliance.)

7. Replace the cover.

8. Connect the power cord.

The PLC-16.PCI is now ready for use.

Programming the PLC-16.PCI

Sealevel’s SeaI/O software is provided to assist in the development of reliable applications for the Sealevel

Systems family of digital I/O adapters. Included in Sealevel’s software and drivers are driver functions for

use in accessing the I/O as well as helpful samples and utilities.

Programming for Windows

The SeaI/O API (Application Programmer Interface) provides a variety of useful high-level function calls

implemented in a Windows dynamic link library (DLL). The API is defined in the help file

(Start/Programs/SeaIO/SeaIO Help) under “Application Programmers Interface”. This help file also

includes detailed information dealing with installation / removal of the software and information about

latency, logic states, and device configuration.

For C language programmers we recommend using the API to access the PLC-16.PCI. If you are

programming in Visual Basic, using the ActiveX control included with SeaI/O is advised.

Samples and Utilities

A variety of sample programs and utilities (both executable and source code) are included in the software

for the SeaI/O. Further documentation on these samples can be found by selecting

“Start/Programs/SeaIO/Sample Application Description.” If you have any problems locating these files,

please contact Sealevel’s Technical Support at 864-843-4343 or email support@sealevel.com.

Programming for Linux

SeaI/O for Linux consists of two major parts: a kernel module and a library. The kernel module is a simple

IO pass-through device, allowing the library to handle the more sophisticated functions provided to SeaI/O

users. It is provided in a ‘tarball’ format and can easily be compiled and included in the kernel build.

Digital I/O Interface

The PLC-16.PCI provides two parallel input/output (I/O) ports. The ports are organized as ports A, B, C, and

D. Port A is an input port interfaced to optically isolated inputs, while port C is the relay output port.

Input Port

Port A is an eight bit input port connected to optically isolated input sensors. Each sensor can be used to

interface a voltage input and then sense whether the voltage is on or off. Each sensor is isolated (with

respect to a common ground) from every other sensor, and also isolated with respect to the host PC ground.

This means that signals such as low-level AC line voltage, motor servo voltage, and control relay signals

can be ‘sensed’, or read by the PC, without the risk of damage due to ground loops or ground faults.

Each sensor input pair has a current limiting resistor that is used to limit the input current to the opto-

isolator. The opto-isolator has two ‘back-to-back’ diodes internally. This allows AC or DC signals to be

sensed, regardless of polarity. When the applied voltage is high enough to cause the led in the opto-isolator

to turn-on, the output of the opto-isolator goes low (0 volts), and the signal is read as a low logic level (binary

0) by the PC. When the input signal is too low to turn on the opto-isolator, the output goes high, and the port

bit is read by the PC as a high logic level (binary 1).

The input impedance of each isolated input is approximately 1K ohms (factory default). The opto-isolator

requires approximately 3mA to turn on. The maximum input current is 50mA. There are two things to

consider when selecting the input resistor. The first is turn on voltage for the circuit to sense, and second

is the maximum input voltage. Maximum input voltage must not provide too much power to the input

resistor and must also not overdrive the opto-isolator input current specification. The following formulas

apply:

Turn on Voltage = diode drop + (turn on current) x (resistance) [Ex: 1.1 + (.003) x R]

Input Current = ((input voltage)-1.1V) / (resistor value)

Maximum voltage = 1.1 + square root of (.25(resistor value))

The following table shows the ranges associated with the resistor.

Input Resistor Turn-On Input Range Max Input Max Current

1KΩ3.0V 5.0 – 24.0V 30V 29mA

The turn-off voltage for all resistors is less than 1V.

Because through hole resistors are utilized, they cannot be easily replaced. If modification is necessary,

Sealevel can do this for an additional charge.

The input circuits are not intended for monitoring 120-volt AC circuits. In addition to being too high

a voltage for the circuits, it is dangerous to have that high a voltage on the card. .

Input Port Pin Assignments (HD44 Female)

The inputs are not polarized and can be wired in either direction.

Port A Bit P1

D0 9,10

D1 11,12

D2 13,14

D3 23,24

D4 25,26

D5 27,28

D6 29,30

D7 40,41

Output Ports (Form C Relays)

The PLC-16.PCI provides 8 Form C (SPDT) Electro-mechanical relays. These relays have three connections:

Normally Open (NO), Normally Closed (NC) and a Common. The relays are all de-energized at power-on.

Data to the relays is latched by a write to the base+2 address. On/off status of the relays can be read back

by a read at the base+2 address.

Output Port Pin Assignments (HD44 Female)

Port C Bit Normally Closed Common Normally Open

D0 (K1) 1 16 31

D1 (K2) 2 17 32

D2 (K3) 3 18 33

D3 (K4) 4 34 35

D4 (K5) 5 19 36

D5 (K6) 6 20 37

D6 (K7) 7 21 38

D7 (K8) 8 22 39

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