Contec COM-4PDHN-USB Owner's manual

PC-HELPER

N Series for USB

RS-422A/485 4ch Isolated Serial I/O Unit

COM-4PDHN-USB

User’s Guide

CONTEC CO., LTD.

COM-4PDHN-USB

Check Your Package

Thank you for purchasing the CONTEC product.

The product consists of the items listed below.

Check, with the following list, that your package is complete. If you discover damaged or missing items,

contact your retailer.

Product Configuration List

- Product [COM-4PDHN-USB] …1

- Rubber feet…4

- 3-pin power connector …1

- 5-pin connector for RS-422A/485 communication…4

- AC cable (1.8m) …1

- USB cable (1.8m) …1

- USB cable attachment on the main product’s side (For Mini B connector side) …1

- AC adapter …1

- Disk *1 [COM Setup Disk] …1

- First step guide … 1

- Warranty Certificate …1

- Serial Number Label …1

*1 The bundled disk contains the driver software and User’s Guide (this guide).

Warranty Certificate

Serial Number Label

Product

Disk

[COM Setup Disk]

First step guide

USB cable (1.8m)

USB cable attachment

on the main product’s side

Rubber feet

5-pin connector

for RS-422A/485

communication

3-pin

power connector

AC cable

AC adapter

Warranty

Certificate

ii

COM-4PDHN-USB

Copyright

No part of this document may be copied or reproduced in any form by any means without prior written

consent of CONTEC CO., LTD.

CONTEC CO., LTD. makes no commitment to update or keep current the information contained in this

document. The information in this document is subject to change without notice.

All relevant issues have been considered in the preparation of this document. Should you notice an

omission or any questionable item in this document, please feel free to notify CONTEC CO., LTD.

Regardless of the foregoing statement, CONTEC assumes no responsibility for any errors that may appear

in this document or for results obtained by the user as a result of using this product.

Trademarks

MS, Microsoft, Windows and MS-DOS are trademarks of Microsoft Corporation. Other brand and

product names are trademarks of their respective holder.

COM-4PDHN-USB

iii

Table of Contents

Check Your Package .................................................................................................................................... i

Copyright ...................................................................................................................................................... ii

Trademarks ................................................................................................................................................... ii

Table of Contents ........................................................................................................................................ iii

1. BEFORE USING THE PRODUCT 1

About the Product ........................................................................................................................................ 1

Features ................................................................................................................................................. 1

Support Software .................................................................................................................................. 2

Accessories (Option) ............................................................................................................................ 2

Customer Support ........................................................................................................................................ 3

Web Site ................................................................................................................................................ 3

Limited One-Year Warranty ....................................................................................................................... 3

How to Obtain Service ................................................................................................................................ 3

Liability ........................................................................................................................................................ 3

Safety Precautions ....................................................................................................................................... 4

Safety Information................................................................................................................................ 4

Handling Precautions ........................................................................................................................... 4

Environment ......................................................................................................................................... 6

Inspection .............................................................................................................................................. 6

Storage .................................................................................................................................................. 6

Disposal................................................................................................................................................. 6

2. SETUP 7

What is Setup? ............................................................................................................................................. 7

Installing the driver .............................................................................................................................. 7

Step 1 Installing the Software ..................................................................................................................... 8

Step 2 Installing the Hardware .................................................................................................................... 9

Name of each parts ............................................................................................................................... 9

Component Functions ........................................................................................................................ 10

Setting Transmission Mode ............................................................................................................... 10

Setting of Terminator ......................................................................................................................... 11

How to supply power to the product ................................................................................................. 13

Connecting the Product ...................................................................................................................... 14

Setting with the Found New Hardware Wizard ............................................................................... 16

Step 3 Initializing the Software ................................................................................................................ 17

Step 4 Operation check.............................................................................................................................. 18

Check Method..................................................................................................................................... 18

Using the Diagnostic Program for Serial Communications Port .................................................... 19

iv

COM-4PDHN-USB

If Setup fails to be performed normally ................................................................................................... 20

3. INSTALLATION AND CONNECTING WITH EXTERNAL DEVICES 21

Installation Method .................................................................................................................................... 21

Mounting on a DIN Rail .................................................................................................................... 21

Desktop Installation ........................................................................................................................... 23

Wall Installation ................................................................................................................................. 23

Installation Using the Magnet ........................................................................................................... 24

Steel wall installation ......................................................................................................................... 25

Installation Conditions .............................................................................................................................. 26

Connection Method ................................................................................................................................... 28

Interface Connector ............................................................................................................................ 28

Connector Pin Assignment ................................................................................................................ 28

Types of Cable and Example Connections .............................................................................................. 29

4. FUNCTION 31

Communication Function .......................................................................................................................... 31

Serial Data Transmission ................................................................................................................... 31

Send and Receive Data Buffers ......................................................................................................... 31

Automatic RTS Control Functions.................................................................................................... 31

Setting the Baud Rate......................................................................................................................... 32

5. ABOUT SOFTWARE 33

About standard COM driver software ...................................................................................................... 33

About Sample programs ............................................................................................................................ 33

Uninstalling the Driver Libraries .............................................................................................................. 34

6. ABOUT HARDWARE 35

Hardware specification .............................................................................................................................. 35

Physical dimensions .................................................................................................................................. 38

1. Before Using the Product

COM-4PDHN-USB

1

1.

Before Using the Product

This chapter provides information you should know before using the product.

About the Product

This product is an USB2.0-compliant product designed for extending RS-422A/485 compatible serial

communication functionality on your PC.

This product supports a baud rate of up to 921,600bps and has separate 128-byte / 384-byte buffer

memory for transmit and receive.

It also comes with a Windows driver, which allows products to be used as OS-standard COM ports.

Features

- Max. 921,600bps RS-422A/485 Serial Communication

This product has 4 channel RS-422A/485-standard serial ports. Baud rates from 300 to 921,600bps can be

set for each port. When using the bundled “Standard COM Driver Software”, baud rates from 300 to

921,600bps can be set. When data is transferred at the high speed, it may not be transferred normally,

depending on the use environment such as the external device and cable length used.

- Possibly used as Windows-standard COM ports, using the bundled driver library

Comes with a driver software that allows the products to be used under Windows in the same way as

COM ports on the PC.

Under Windows, the product supports the OS-standard Win32 API communication function as well as

Visual Basic MSComm.

- Each channel is equipped with separate 128-byte / 384-byte FIFO buffers for transmit and receive.

These are FIFO format, useful for high speed communications and to reduce the load to the CPU when

transmitting/receiving.

- Compatible to USB1.1/USB2.0

Compatible to USB1.1/USB2.0 and capable to achieve high speed transfer at Full Speed (12 Mbps).

- Compact Design

Compact design, 188.0(W) × 78.0(D) × 30.5(H), features flexibility in installation.

- Adapting terminal connecters make it easy to connect and install the product

The terminal connectors (screw type) make it easy to connect and install the product.

- Capable of adapting a wide-range power (12- 24VDC)

The product is capable of dealing with a wide range of power in the differing environments.

Power connector also has a FG terminal.

- Diverse installations such as screw fastening, magnet (option), DIN rail are possible

Installation on the floor / wall /ceiling is possible by screw fastening, magnet (option), rubber feet, etc.

In addition, DIN rail mounting mechanism is equipped as standard with the product, making it easy to

install the product within the panel or the device.

1. Before Using the Product

2

COM-4PDHN-USB

Support Software

You should use CONTEC support software according to your purpose and development environment.

Standard COM Driver Software

COM Setup Disk

(Bundled)

Under Windows, this software allows you to use the serial ports on the converter as if they were standard

COM ports on the PC. By connecting additional products, you can use COM ports in the range COM1 -

COM256.

Under Windows, the serial ports can be accessed using the standard Win32 API communication routines

(CreateFile( ), WriteFile( ), ReadFile( ), and SetCommState( ), etc.) The serial ports are also compatible

with the Visual Basic communication control (MSComm).

Supports the communication class of .NET

Framework (SerialPort class).

For more details on the supported OS, applicable language and new information, please visit the CONTEC’s Web site.

Accessories (Option)

AC adaptor (Input : 90 - 264VAC, output : 12VDC 1.0A) : POA201-10-2

DIN rail mounting power supply 15[w] : CPS-PWD-15AW12-01 *1

(Input: 100 - 240VAC, output: 12VDC 1.3 A)

Magnets for installation (Four Piece Set) : CPS-MAG01-4

*1 This needs to be accompanied by AC cable. A user is encouraged to purchase our recommended AC

cable (sold separately).

* Check the CONTEC’s Web site for more information on these options.

1. Before Using the Product

COM-4PDHN-USB

3

Customer Support

CONTEC provides the following support services for you to use CONTEC products more efficiently and

comfortably.

Web Site

https://www.contec.com/

Latest product information

CONTEC provides up-to-date information on products.

CONTEC also provides product manuals and various technical documents in the PDF.

Free download

You can download updated driver software and differential files as well as sample programs available in

several languages.

Note! For product information

Contact your retailer if you have any technical question about a CONTEC product or need its price,

delivery time, or estimate information.

Limited One-Year Warranty

CONTEC products are warranted by CONTEC CO., LTD. to be free from defects in material and

workmanship for up to one year from the date of purchase by the original purchaser.

Repair will be free of charge only when this device is returned freight prepaid with a copy of the original

invoice and a Return Merchandise Authorization to the distributor or the CONTEC group office, from

which it was purchased.

This warranty is not applicable for scratches or normal wear, but only for the electronic circuitry and

original products. The warranty is not applicable if the device has been tampered with or damaged

through abuse, mistreatment, neglect, or unreasonable use, or if the original invoice is not included, in

which case repairs will be considered beyond the warranty policy.

How to Obtain Service

For replacement or repair, return the device freight prepaid, with a copy of the original invoice. Please

obtain a Return Merchandise Authorization number (RMA) from the CONTEC group office where you

purchased before returning any product.

* No product will be accepted by CONTEC group without the RMA number.

Liability

The obligation of the warrantor is solely to repair or replace the product. In no event will the warrantor be

liable for any incidental or consequential damages due to such defect or consequences that arise from

inexperienced usage, misuse, or malfunction of this device.

1. Before Using the Product

4

COM-4PDHN-USB

Safety Precautions

Understand the following definitions and precautions to use the product safely.

Safety Information

This document provides safety information using the following symbols to prevent accidents resulting in

injury or death and the destruction of equipment and resources. Understand the meanings of these labels

to operate the equipment safely.

DANGER indicates an imminently hazardous situation which, if not avoided, will

result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not avoided, could

result in death or serious injury.

CAUTION indicates a potentially hazardous situation which, if not avoided, may

result in minor or moderate injury or in property damage.

Handling Precautions

Do not use the product where it is exposed to flammable or corrosive gas. Doing so may result in an

explosion, fire, electric shock, or failure.

- Do not strike or bend this product.

Otherwise, this may malfunction, overheat, cause a failure or breakage.

- Do not touch this product's terminals (USB connector, D-SUB connector) with your hands.

Otherwise, this may malfunction, overheat, or cause a failure.

If the terminals are touched by someone's hands, clean the terminals with industrial alcohol.

- Do not close the ventilation hole(s) of this product by, for example, placing an object. This may

cause overheating, malfunction, and/or failure of the product.

- Do not touch the external connector when the power is on.

Otherwise this may malfunction, overheat, cause a failure due to static electricity.

- Make sure that your PC can supply ample power to all this product connected.

Insufficiently energized products could malfunction, overheat, or cause a failure.

- The specifications of this product are subject to change without notice for enhancement and quality

improvement.

Even when using this product continuously, be sure to read the manual and understand the contents.

- Do not modify this product. CONTEC will bear no responsibility for any problems, etc., resulting

from modifying this product.

- Regardless of the foregoing statements, CONTEC is not liable for any damages whatsoever

(including damages for loss of business profits) arising out of the use or inability to use this

CONTEC product or the information contained herein.

- If you use this product in a noisy environment, attach a ferrite core to USB cable to stabilize the

operation. When attaching a ferrite core, coil it around once or more near the connector while leaving

it open, and then close it.

DANGER

WARNING

C

AU

TION

DA

NGER

CA

UTION

1. Before Using the Product

COM-4PDHN-USB

5

- Regarding “CE EMC Directive Class A Notice”

The ferrite core must be installed in interface connecting cable so that this product may suit the

above-mentioned standard.

Name

Maker

Turn

Quantity

Installation Site

KRFC-6

KGS

1

on USB cable at product

KRFC-9

KGS

2

1

on FG cable at product

Image diagram

FCC PART 15 Class A Notice

EN55032 Class A Notice

Warning: Operation of this equipment in a residential environment could cause radio interference.

This equipment has been tested and found to comply with the limits for a Class A digital device,

pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against harmful interference when the equipment is operated in a commercial environment.

This equipment generates, uses, and can radiate radio frequency energy and, if not installed and

used in accordance with the instruction manual, may cause harmful interference to radio

communications. Operation of this equipment in a residential area is likely to cause harmful

interference in which case the user will be required to correct the interference at his own expense.

NOTE

FCC WARNING

Changes or modifications not expressly approved by the party responsible for compliance could void

the user's authority to operate the equipment.

Ferrite core

Cable

TURN : 1

TURN : 2

TURN : 3

TURN : 4

1. Before Using the Product

6

COM-4PDHN-USB

Environment

Use this product in the following environment. If used in an unauthorized environment, this product may

overheat, malfunction, or cause a failure.

Operating temperature

-20 - 60°C

Humidity

10 - 90%RH (No condensation)

Corrosive gases

None

Floating dust particles

Not to be excessive

Inspection

Inspect the product periodically as follows to use it safely.

Be certain that the ventilation holes of this product are not closed and also no dust or foreign matter is

adhered to them.

Storage

When storing this product, keep it in its original packing form.

(1) Put this product in the storage bag.

(2) Wrap it in the packing material, and then put it in the box.

(3) Store the package at room temperature at a place free from direct sunlight, moisture, shock, vibration,

magnetism, and static electricity.

Disposal

When disposing of the product, follow the disposal procedures stipulated under the relevant laws and

municipal ordinances.

- Check that the connector has no dust

or foreign matter adhering.

COM-4P DHN -US B

USB I/OTe rmin al

Isol ated R S-422A /485 4ch I/O Unit

V+ V-

C

AUTION

2. Setup

COM-4PDHN-USB

7

2.

Setup

This chapter explains how to set up this product.

What is Setup?

Setup means a series of steps to take before the product can be used.

Different steps are required for software and hardware.

Installing the driver

This section enables you to prepare the software and hardware by following each step in this chapter with

the bundled disk “COM Setup Disk”. You can use the diagnosis program later to check whether the

software and hardware function normally.

Step 1 Installing the Software

Step 2 Setting the Hardware

Step 3 Initializing the Software

Step 4 Operation Check

2. Setup

8

COM-4PDHN-USB

Step 1 Installing the Software

Install software.

Run [\USB\COM-4CN-USB\Setup.exe] from the bundled disk.

(1) The screens below show the installation.Click [next].

(2) Accept the license agreement, then click [Next>].

(3) The setup is completed.

2. Setup

COM-4PDHN-USB

9

Step 2 Installing the Hardware

When using the product in the Windows environment, the OS needs to recognize the peripheral devices.

This is called hardware installation.

If you are using more than one product, be sure to complete the first installation, then install the

next one.

Name of each parts

Figure 2.1. Name of each parts

USB cable

attachment

For PC

Interface connector

USB Type A

LED indicator

COM-4PDHN-USB

USB I/OT

erminal

Isol at ed RS

-422A/485 4ch I/O Unit

V+

V-

Interface connector

CH1

CH2

CH3 CH4

USB2.0 (mini-B type)

12-24VDC

SW1

SW2 SW3

SW4

2. Setup

10

COM-4PDHN-USB

Component Functions

LED indicator

LED

Meaning

Status

POWER (Green)

*1

Power status

OFF: Power has not been supplied.

ON: Power has been supplied.

RxD (Yellow)

Reception status

Output status indication

OFF : Data has not been received by the RS-422A/485

ON : When receiving data by the RS-422A/485

TxD (Green) Transmission status Input status indication

OFF : Data has not been sent by the RS-422A/485

ON : When sending data by the RS-422A/485

*1 LEDs light up when both the external power supply and the USB cable are connected. Only with one of them connected, the lights will

not be on.

Setting Transmission Mode

The data transfer mode setting switch is used to switch between full duplex and half duplex and to specify

whether to use RTS/CTS in full duplex mode. Set the appropriate data transfer mode for the device with

which you are communicating.

Bits 3 - 5 corresponded to each channel are used to set the data transfer mode. Always set the bit 6 to

OFF.

Setting Procedure

Table 2.1. Setting Transmission Mode

The CTS signal of each channel is controlled by self-looping the RTS signal of the corresponding channel

in the product.

1 2 3 4 5 6

TERM MODE

ON

TERM

MODE

ON

1 2 3

4 5 6

Setting

mode

(SW1 - 4)

Transmission

mode

Half duplex

Full duplex

2. Setup

COM-4PDHN-USB

11

Setting of Terminator

The terminator setting switch controls whether or not a terminator is inserted into each signal line. Set the

terminators on or off in accordance with the devices with which you are communicating. The terminators

on the product are 100Ω resistors.

Setting Procedure

If you wish to use a terminator of other than 100Ω, set the bit 1 and 2 of corresponded channels OFF, and

insert an external terminator. The diagrams below show examples of terminator installation for half and

full duplex setting.

Table 2.2. Setting of Terminator

- Half-duplex

Figure 2.2. Party line connection

SW1 - 4

1 2 3 4 5 6

TERM MODE

RxD

TxD

ON

Setting

method

Not inserted

[Term OFF]

Figure 2.2 B to C

(Other than both

terminators of the line)

[A or D]

Terminator

(Bit 9)

Terminator

(Bit 9)

(A) (D)(C)(B)

[B or C]

SW2 SW2

SW2

1

2

3

4

5

6

O

N

TERM

MODE

1

2

3

4

5

6

O

N

TERM MODE

1

2

3

4

5

6

O

N

TERM MODE

RxDTxD

Inserted

Not inserted

SW1 - 4

2. Setup

12

COM-4PDHN-USB

- Full -duplex

Figure 2.3. Example Connection Oneself loop to RTS and CTS in Full Duplex

The figure below shows the circuit associated with the data transfer mode setting switch and terminator

setting switch. Each channel shares the same switch and the bits to be set are vary.

Figure 2.4. Setting Switch Circuits

RxD

TxD

Terminator (Bit 9)

Terminator (Bit 7)

Terminator (Bit 7) Terminator (Bit 9)

TxD

RxD

SW2 SW2

1

2

3

4

5

6

O

N

TERM

MODE

1

2

3

4

5

6

O

N

TERM MODE

RxD

TxD

RxD

TxD

Inserted Not inserted

SW1 - 4

TxD+

TxD-

RxD+

RxD-

RTS

DCD

DTR

DSR

RI

CTS

SIN

SOUT

Terminator

1/2W 100Ω

2 1

Terminator

3 4 5 6

Data transfer mode

2. Setup

COM-4PDHN-USB

13

How to supply power to the product

Connect to the external power using the power input connector of this product (suitable cable is AWG28 -

16). Even when using the commercial DC output power supply, follow the instruction described here.

Signal name

Meaning

FG

Frame ground

Vi- Power supply (GND)

Vi+

Power supply (12 – 24VDC±10%)

When using the provided AC adapter [POA201-10-2], please connect directly to the input terminals.

When using the provided 3-pin connector (MC1,5/3-ST-3,5, suitable cable: AWG28 - 16) to supply

power to this product, strip the end of the suitable cable and connect it with the connector firmly using a

screw, then insert it to the terminals.

Figure 2.5. Connecting the AC Adapter POA201-10-2

-

First, connect 12 - 24VDC power supply to the product. Next, connect the USB cable to the PC.

Do not power on or off when using the product. When removing, first remove the USB cable, and

then disconnect 12 - 24VDC power supply.

-

When the USB module is not used, leave the AC adapter unplugged.

-

Continuously using the AC adapter heated affects its life.

-

Use the AC adapter not in a closed place but in a well-ventilated place not to be heated.

-

Do not remove the 3-pin power connector attached to the AC adapter.

12-24VDC

FG Vi- Vi+

- Connector used

MC1,5/3-G3,5 [PHOENIX CONTACT]

- Applicable connectors

MC1,5/3-ST3,5 [PHOENIX CONTACT]

POA-201-10-2

Power input connector

COM- 4PDHN-USB

USB I/O Te rm in al

Isol ated R S-422A /485 4ch I/O Unit

V+ V-

CAUTION

2. Setup

14

COM-4PDHN-USB

Connecting the Product

(1) Power on the PC first before connecting the product. Then, power on the product.

The power LEDs light up when both the external power supply and the USB cable are connected.

Only with one of them connected, the lights will not be on.

Figure 2.6. Power on the product

(2) Connect the product to USB port of the PC.

The product can also be connected through USB hub.

Figure 2.7. Connecting the PC

- It may cause a trouble in recognizing and operating the device according to the kind of USB hub.

- It is newly recognized as another COM port number when replacing the universal serial bus port and

putting on the USB hub and substituting it.

USB port

C

AUTION

2. Setup

COM-4PDHN-USB

15

(3) Sandwich the supplied USB cable with the USB cable attachment and connect to the product. This

makes the cable hard to disconnect.

Figure 2.8. Connecting the Product

- The USB cable attachment cannot be used excluding an attached cable.

- When the USB cable attachment is being used, do not perform removing and connecting the USB

cable on the product side repeatedly. This may damage the USB cable attachment or yourself.

CA

UTION

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Contec COM-4PDHN-USB Owner's manual

Contec COM-4PDHN-USB Owner's manual

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