D.I.P. CDN366 Manuale utente

CDN36X Series

DeviceNet Gateway

User Manual

CDN366 – 1 isolated RS232 channel

CDN367 – 1 isolated RS422/RS485 channel

CDN36X User Manual revision 1.30

Table of Contents

CHAPTER 1 – OVERVIEW......................................................................................................................................4

CHAPTER 2 – INSTALLATION..............................................................................................................................5

MOUNTING ................................................................................................................................................................5

WIRING .....................................................................................................................................................................6

DeviceNet Interface .............................................................................................................................................6

Serial Channel Interface......................................................................................................................................6

Wiring Examples..................................................................................................................................................7

CHAPTER 3 – THEORY OF OPERATION............................................................................................................8

CHAPTER 3 – THEORY OF OPERATION............................................................................................................9

GATEWAY OPERATION ..............................................................................................................................................9

DeviceNet Object Model......................................................................................................................................9

DeviceNet Object Model....................................................................................................................................10

DeviceNet Interface ...........................................................................................................................................10

Serial Channel Interface....................................................................................................................................13

Serial Stream Object .......................................................................................................................................................13

Serial Receive Object......................................................................................................................................................14

Serial Transmit Object ....................................................................................................................................................17

Asynchronous Serial Communictaion.............................................................................................................................18

Data Conversion..............................................................................................................................................................19

Serial Receive Example ..................................................................................................................................................22

Serial Transmit Example.................................................................................................................................................24

Synchronization ..............................................................................................................................................................25

Receive Synchronization ...........................................................................................................................................25

Transmit Synchronization..........................................................................................................................................26

CHAPTER 4 – GATEWAY CONFIGURATION..................................................................................................28

CONFIGURE DEVICENET INTERFACE .......................................................................................................................28

DeviceNet Baud Rate Switch..............................................................................................................................28

MAC ID Switches...............................................................................................................................................28

POWER UP GATEWAY..............................................................................................................................................29

DeviceNet Status LEDs......................................................................................................................................29

Serial Channel Status LEDs...............................................................................................................................29

Register EDS File ..............................................................................................................................................30

CONFIGURE SERIAL CHANNEL ................................................................................................................................31

SERIAL RECEIVE OBJECT SETTINGS.........................................................................................................................34

SERIAL TRANSMIT OBJECT SETTINGS......................................................................................................................37

CONFIGURE DEVICENET MASTER SCANLIST...........................................................................................................40

I/O Consume Size...............................................................................................................................................40

I/O Produce Size................................................................................................................................................41

CHAPTER 5 – DEVICENET SPECIFICATIONS................................................................................................42

DEVICENET MESSAGE TYPES..................................................................................................................................42

DEVICENET CLASS SERVICES..................................................................................................................................42

DEVICENET OBJECT CLASSES .................................................................................................................................42

IDENTITY OBJECT..............................................................................................................................................43

ROUTER OBJECT.................................................................................................................................................44

DEVICENET OBJECT ..........................................................................................................................................45

ASSEMBLY OBJECT............................................................................................................................................46

CONNECTION OBJECT.......................................................................................................................................47

SERIAL STREAM OBJECT..................................................................................................................................49

SERIAL RECEIVE OBJECT .................................................................................................................................50

MKS Instruments, Inc. D.I.P. Products Group 2

CDN36X User Manual revision 1.30

SERIAL TRANSMIT OBJECT..............................................................................................................................51

CHAPTER 6 – RSNETWORXCONFIGURATION EXAMPLE.....................................................................52

CONFIGURE DEVICENET INTERFACE .......................................................................................................................53

CONNECT &REGISTER EDS FILE............................................................................................................................53

CONFIGURE SERIAL CHANNEL ................................................................................................................................61

CONFIGURE SERIAL RECEIVE OBJECT INSTANCES...................................................................................................69

CONFIGURE SERIAL TRANSMIT OBJECT INSTANCES................................................................................................72

CONFIGURE DEVICENET MASTER SCANLIST...........................................................................................................75

CHAPTER 7 – CONFIGURATION EXAMPLES.................................................................................................82

EXAMPLE 1–RECEIVING DATA ..............................................................................................................................82

Barcode Scanner................................................................................................................................................82

CDN366 Gateway..............................................................................................................................................82

EXAMPLE 2–RECEIVING DELIMITED DATA............................................................................................................84

Barcode Scanner................................................................................................................................................84

CDN366 Gateway..............................................................................................................................................84

EXAMPLE 3–TRANSMITTING DATA........................................................................................................................86

Serial Printer .....................................................................................................................................................86

CDN366 Gateway..............................................................................................................................................86

EXAMPLE 4–TRANSMITTING DELIMITED DATA.....................................................................................................88

Serial Printer .....................................................................................................................................................88

CDN366 Gateway..............................................................................................................................................88

CHAPTER 8 – TROUBLESHOOTING .................................................................................................................90

APPENDIX A – PRODUCT SPECIFICATIONS..................................................................................................91

DEVICENET INTERFACE...........................................................................................................................................91

SERIAL CHANNEL....................................................................................................................................................91

ENVIRONMENTAL....................................................................................................................................................91

APPENDIX B – DEVICENET TEMPLATE..........................................................................................................92

APPENDIX C – ASCII CHARACTER CODES....................................................................................................93

MKS Instruments, Inc. D.I.P. Products Group 3

CDN36X User Manual revision 1.30

Chapter 1 – Overview

This document describes how to install, configure, and operate the CDN36X series of serial to

DeviceNet gateways. The following products are covered in this user manual:

Part Number FW Rev. Serial Channel

CDN366 2.04 or higher RS232 full duplex

CDN367 2.04 or higher RS422 full duplex / RS485 half duplex

The CDN36X gateways allow you to easily interface a wide variety of serial devices to any

DeviceNet industrial control network. Each gateway contains the feature-packed D.I.P.

DeviceNet core. Standard CDN36X products are tightly packaged and sealed in a rugged

industrial case. Board-level and customized gateways are also available upon request.

Isolated Serial Channel

(

male DB9 connector

)

Serial Status LEDs

(RX, TX)

Mounting Holes

DeviceNet MAC ID

Rotar

Switches

DeviceNet Baud Rate

DeviceNet Status LEDs

(NET, MOD)

Rotar

Switch

DeviceNet Channel

(

male 5-

in micro connector

)

Product Features CDN366 CDN367

500V isolated serial channel X X

RS232 with RTS/CTS flow control X

RS422 full duplex (4-wire) with terminating resistors X

RS485 half duplex (2-wire) with terminating resistor, repeater control signal X

XON/XOFF software flow control X X

300, 1200, 2400, 4800, 9600, 19200 bps serial data rates X X

Configurable data bits, stop bits, parity X X

128 byte transmit and 128 receive FIFO buffers X X

Receives up to 8 different serial messages X X

Transmits up to 8 different serial messages X X

Powered from DeviceNet 24VDC X X

Loss-of-ground protection circuitry X X

DeviceNet slave mode supports POLL, COS, EXPLICIT messages X X

Rotary switches set DeviceNet baud rate and MAC ID X X

4 bi-color status LEDs X X

I/O Byte-swap I/O option for compatibility with PLC Scanners X X

MKS Instruments, Inc. D.I.P. Products Group 4

CDN36X User Manual revision 1.30

Chapter 2 – Installation

This chapter describes how to install and connect the CDN36X gateway to a DeviceNet network

and your serial device.

Mounting

Mount on a horizontal or vertical surface. While the RTV encapsulation protects its circuitry,

the CDN36X serial channel connector is not rated for NEMA4 / IP65 environments. Mount the

gateway in a suitable location or enclosure for your application. The gateway will generate up to

1.4W of heat, so provide sufficient clearance and airflow to maintain 0°C to 70°C operating

temperature range. Use two screws (not provided) in the 0.19 inch mounting holes shown below

to fasten the CDN36X to the mounting surface.

0.65 0.45

0.50

0.12

Mtg. Holes 1.225

(2) 0.19 DIA.

1.225

0.725 0.625 DIA. On Case Wall

0.70

1.10

1.25

0.542

3.30

4.30

3.80

All dimensions

are inches

MKS Instruments, Inc. D.I.P. Products Group 5

CDN36X User Manual revision 1.30

Wiring

The CDN36X requires two connections – one to the DeviceNet network (male 5-pin micro

connector) and one to the target serial device (male DB9 connector). Follow all applicable

electrical codes in your area when mounting and wiring any electrical device.

All power is received from the DeviceNet network. The CDN36X draws up to 50mA from the

24VDC power supply. Select your DeviceNet cables and power supply so that it can provide

sufficient current for all networked devices at their peak operating power.

DeviceNet Interface

DRAIN

V+

V- CAN

CAN_L

Male 5-Pin Micro Connector

PIN SIGNAL COLOR DESCRIPTION

1 DRAIN NONE Cable shield or drain wire.

2 V+ RED DeviceNet 24VDC(+) power.

3 V- BLACK DeviceNet 24VDC(-) power.

4 CAN_H WHITE Communication signal.

5 CAN_L BLUE Communication signal.

Serial Channel Interface

Male DB9 Serial Connector

CDN366 (RS232)

PIN SIGNAL DESCRIPTION

1 NC No Connect. Do not connect any wires to NC pins.

2 RXD Receive Data. RS232 input signal.

3 TXD Transmit Data. RS232 output signal.

4 NC No Connect.

5 GND Ground. Common for RS232 signals.

6 NC No Connect.

7 RTS Request To Send. RS232 output signal.

8 CTS Clear To Send. RS232 input signal.

9 NC No Connect.

MKS Instruments, Inc. D.I.P. Products Group 6

CDN36X User Manual revision 1.30

CDN367 (2-WIRE RS485 configuration)

PIN SIGNAL DESCRIPTION

1 RXA RS485 differential data I/O signal.

2 RXB RS485 differential data I/O signal.

3 TR Internal 120Terminating Resistor, connected between pins 1 and 3. Connect

pin 2 to pin 3 to terminate DATA signals. Use at end of long twisted-pair cable.

4 NC No Connect. Do not connect any wires to NC pins.

5 GND Ground.

6 TXA Connect to pin 1 for 2-wire operation.

7 TXB Connect to pin 2 for 2-wire operation.

8 TR2 Internal 120Terminating Resistor, connected between pins 6 and 8. Do not

connect in 2-wire operation.

9 +5VDC Auxiliary 5VDC supply generated by CDN36X.

CDN367 (4-WIRE RS422 configuration)

PIN SIGNAL DESCRIPTION

1 RXA RS422 differential receive data input signal.

2 RXB RS485 differential receive data input signal.

3 TR Internal 120Terminating Resistor, connected between pins 1 and 3. Connect

pin 3 to pin 2 to terminal RX signals. Use at end of long twisted-pair cable.

4 NC No Connect. Do not connect any wires to NC pins.

5 GND Ground.

6 TXA RS422 differential transmit data output signal.

7 TXB RS422 differential transmit data output signal.

8 TR2 Internal 120Terminating Resistor, connected between pins 6 and 8. Connect

pin 7 to pin 8 to terminate TX signals. Use at end of long twisted-pair cable.

9 +5VDC Auxiliary 5VDC supply generated by CDN36X.

Wiring Examples

The following are typical CDN36X gateway wiring configurations. Your RS232 or RS422/485

interface may vary. Refer to your device’s documentation for the required data and control

signals.

CDNx66

RXD

TXD

GND

DRAIN

VDC+

VDC-

CAN H

CAN L

RXD

TXD

GND

RS232

Serial

Device

Simple RS232 Interface

MKS Instruments, Inc. D.I.P. Products Group 7

CDN36X User Manual revision 1.30

CDNx66

RXD

TXD

GND

DRAIN

VDC+

VDC-

CAN H

CAN L

RXD

TXD

GND

RS232

Serial

Device

RS232 Interface, HW Flow Control

RTS

CTS

RTS

CTS

CDNx67

DATAB

DATAA

DRAIN

VDC+

VDC-

CAN H

CAN L

DATAB

DATAA

RS485

Serial

Device

Simple RS485 Interface

120

Connect pins 2 & 3

to terminate cable

CDNx67

RXB

RXA

DRAIN

VDC+

VDC-

CAN H

CAN L

TX B

TX A

RS422

Serial

Device

RS422 4-Wire Interface

120

RX A

RX B

LOOP

TXB

TXA

TR2 120

Connect pins 2 & 3 (RX) and

ins 7 & 8 (TX) to terminate cables.

Connect pins 4 & 5.

MKS Instruments, Inc. D.I.P. Products Group 8

CDN36X User Manual revision 1.30

Chapter 3 – Theory of Operation

This chapter describes how the CDN36X gateway operates. You should have a working

knowledge of DeviceNet and asynchronous serial communications before continuing. The Open

DeviceNet Vendors Association (www.odva.com) is a good source for general DeviceNet

information. Refer to your serial device documentation for its protocol information.

Gateway Operation

The CDN36X gateway receives asynchronous serial messages over its serial channel, converts

them to data values, and returns the values as input data to the DeviceNet master. The gateway

receives output data from the DeviceNet master, converts them into serial messages, and

transmits the messages out its serial channel. The following diagram shows the major gateway

components.

Gateway Core

• microcontroller

• RAM

• Flash ROM

DC:DC Power Conversion

• 24VDC DeviceNet power input

• VDC for Core & DeviceNet channel

• isolated VDC for serial channel

DeviceNet Channel

• 24VDC power

• communications

Serial Channel

• c

• flow control

ommunications

5-pin male

micro connector Male DB9

connector

Serial Stream Object

Serial Transmit Object

(up to 8 Instances) Serial Receive Object

(up to 8 Instances)

Devicenet I/O Response

input data

serial

messages

DeviceNet Object

or Rotary Switches

DeviceNet I/O Command

output data

Configures the DeviceNet

interface baud rate and

MAC ID address.

Converts output data from

DeviceNet master to message

packet. Transmits message

packet out the serial channel.

Converts received message

packet to input data. Input

data returned to DeviceNet

master.

Configures the serial channel.

Scans channel for valid message

packets, which are passed to

Serial Receive Object instances.

MKS Instruments, Inc. D.I.P. Products Group 9

CDN36X User Manual revision 1.30

DeviceNet Object Model

The DeviceNet Specification defines an Object Model that consists of Objects and Attributes.

An Object is a predefined software process, and an Object Attribute is a data value used or

created by that process. An Object can have multiple Instances, or the same process operating

with different sets of Attributes or data values. For the purpose of this document, an Object

Instance is an independent program or process, and its Attributes are configuration parameters

and data values that are unique to that specific Object Instance.

The CDN36X gateway has eight different Object Classes, or types. Five are standard objects

defined by the DeviceNet Specification (Identity, Router, DeviceNet, Assembly, Connection).

Three are specific objects defines for the CDN36X gateway (Serial Stream, Serial Receive,

Serial Transmit). The Serial Stream Object configures the serial channel, and scans the incoming

serial stream for valid message packets. The Serial Receive Object processes the received

message packet, converts it into input data, and returns it to the DeviceNet master. The Serial

Transmit Object receives output data from the DeviceNet master, converts it into a message

packet, and transmits it out the serial channel. You can configure up to 8 Instances each for the

Serial Receive Object and Serial Transmit Object. Chapter 5 contains detailed information on

each DeviceNet object class.

DeviceNet Interface

The CDN36X gateway operates as a DeviceNet slave. It supports Explicit Messages, Polled I/O

Messages, and Change-of-State (COS) I/O Messages of the predefined master/slave connection

set. The Explicit Unconnected Message Manager (UCMM) is not supported.

The I/O Messaging process consists of the DeviceNet master sending output data to the

CDN36X in the form of a Poll/COS Command Message, and the CDN36X returning input data

to the DeviceNet master in a Poll/COS Response Message. The difference between Poll and

Change-of-State is Polled I/O Messaging is initiated by the DeviceNet master and responded to

by the slave device. Change-of-State I/O Messaging is initiated by changes to the master’s

output data values or the slave’s input data values, causing the master or slave to immediately

transmit its new output or input data when it changes. Please refer to DeviceNet Specification

for detailed information on Polled I/O and Change-of-State I/O Messaging.

The output and input data bytes are typically mapped into data files inside the DeviceNet master.

These data files are exchanged with the user application program, which acts upon the received

input data and writes new output data to the DeviceNet master.

MKS Instruments, Inc. D.I.P. Products Group 10

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