Circutor TPC2RS Manual de usuario

RS232/485 –TCP/IP converter

TPC2RS

(7 70 029)

Ver. 01A- GB

----------- TCP2RS -------------- User’s manual -------------------- page 2/43

1: INTRODUCTION..................................................................................................5

1.1 NETWORK PROTOCOLS ......................................................................................5

1.1.1 Packing Algorithms...................................................................................6

1.1.2 Ethernet (MAC) Address............................................................................6

1.1.4 Port Number..............................................................................................6

2: INSTALLATION...................................................................................................7

2.1 PRODUCT DESCRIPTION .....................................................................................7

2.1.1 Serial Interface..........................................................................................7

2.1.2 Network Interface......................................................................................7

2.1.3 LEDs.........................................................................................................7

2.1.4 Product Information Label.........................................................................8

2.2 INSTALLING THE TCP2RS..................................................................................8

3: GETTING STARTED ...........................................................................................9

3.1 DEFAULT IP ADDRESS .......................................................................................9

3.2 IP ADDRESS CONFIGURATION .......................................................................... 10

3.2.1 Network Port Login (1)..............................................................................10

3.2.2 Network Port Login (2)..............................................................................10

3.2.3 Serial Port Login.....................................................................................11

4: CONFIGURATION.............................................................................................13

4.1 NETWORK CONFIGURATION .............................................................................13

4.1.1 Using a Web Browser..............................................................................13

4.1.2 Using a Telnet Connection.......................................................................14

4.2 SERIAL CONFIGURATION..................................................................................14

4.3 CONFIGURATION PARAMETERS ........................................................................ 14

4.4 SERVER CONFIGURATION.................................................................................16

4.4.1 IP Address...............................................................................................16

4.4.2 Gateway Address..................................................................................... 16

4.4.3 Netmask ..................................................................................................16

4.4.4 Telnet Configuration Password................................................................17

4.5 SERIAL CHANNEL (PORT) CONFIGURATION ...................................................... 17

4.5.1 Baud Rate................................................................................................17

4.5.2 Interface Mode ........................................................................................17

4.5.3 Flow Control........................................................................................... 18

4.5.4 Port Number............................................................................................18

4.5.5 Connect Mode.........................................................................................18

4.5.6 Remote IP Address ..................................................................................21

4.5.7 Remote Port ............................................................................................ 21

4.5.8 Disconnect Mode.....................................................................................21

----------- TCP2RS -------------- User’s manual -------------------- page 3/43

4.5.9 Flush Mode (Buffer Flushing)..................................................................21

4.5.10 Pack Control.........................................................................................22

4.5.11 Inactivity (Disconnect) Timeout .............................................................23

4.5.12 Send Characters....................................................................................23

4.5.13 Telnet Terminal Type............................................................................. 23

4.5.14 Channel (Port) Password.......................................................................23

4.6 FACTORY DEFAULT SETTINGS..........................................................................24

4.7 EXIT CONFIGURATION MODE...........................................................................24

5: USING THE TCP2RS..........................................................................................25

5.1 COMM PORT REDIRECTOR................................................................................ 25

5.1.1 Redirector Setup......................................................................................25

5.1.2 TCP2RS Configuration............................................................................25

5.2 MONITOR MODE.............................................................................................. 26

5.2.1 Via the Serial Port................................................................................... 26

5.2.2 Via the Network....................................................................................... 26

5.2.3 Monitor Mode Commands........................................................................27

A: CONTACT INFORMATION...............................................................................29

A.1 PROBLEM REPORT PROCEDURE .......................................................................29

A.2 FULL CONTACT INFORMATION ........................................................................30

B: BINARY TO HEXADECIMAL CONVERSION............................................................31

C: PINOUTS............................................................................................................32

C.1 ETHERNET CONNECTOR .................................................................................. 32

C.2 SERIAL CONNECTOR ....................................................................................... 32

C.3 SERIAL AND ETHERNET WIRES........................................................................ 33

Standard Serial Wire..........................................................................................33

D: UPDATING FIRMWARE..................................................................................35

D.1 OBTAINING FIRMWARE ...................................................................................35

D.2 RELOADING FIRMWARE ..................................................................................35

D.2.1 VIA TFTP....................................................................................................35

D.2.2 VIA ANOTHER DEVICE SERVER ....................................................................36

D.2.3 VIA THE SERIAL PORT..................................................................................36

E: TECHNICAL SPECIFICATIONS .....................................................................38

E.1 CPU, MEMORY CONTROLLERS........................................................................38

E.2 SERIAL INTERFACE..........................................................................................38

E.3 NETWORK INTERFACE ..................................................................................... 38

E.4 POWER SUPPLY ............................................................................................... 38

E.5 DIMENSIONS ...................................................................................................38

E.6 ENVIRONMENTAL LIMITATIONS....................................................................... 38

E.6.1 Temperature............................................................................................38

E.6.2 Altitude...................................................................................................39

----------- TCP2RS -------------- User’s manual -------------------- page 4/43

E.6.3 Relative Humidity....................................................................................39

F: IP ADDRESSING................................................................................................ 40

F.1 CLASS A NETWORK.........................................................................................40

F.2 CLASS B NETWORK.........................................................................................40

F.3 CLASS C NETWORK......................................................................................... 41

F.4 CLASS D NETWORK.........................................................................................41

F.5 CLASS E NETWORK .........................................................................................41

F.6 NETWORK ADDRESS........................................................................................ 41

F.7 BROADCAST ADDRESS.....................................................................................41

F.8 IP NETMASK ................................................................................................... 42

F.9 PRIVATE IP NETWORKS AND THE INTERNET .....................................................43

F.10 NETWORK RFCS...........................................................................................43

----------- TCP2RS -------------- User’s manual -------------------- page 5/43

1: Introduction

The TCP2RS Device Server connects serial devices to Ethernet networks using the IP

protocol family (TCP for connection-oriented stream applications and UDP for datagram

applications). A few of the different types of serial devices supported are listed below:

!" Time/Attendance Clocks and Terminals

!" ATM Machines

!" CNC Controllers

!" Data Collection Devices

!" Universal Power Supply (UPS) Management Units

!" Telecommunications Equipment

!" Data Display Devices

!" Security Alarms and Access Control Devices

!" Handheld Instruments

!" Modems

The TCP2RS connects these devices through a TCP data channel or through a Telnet

connection to computers or another Device Server. Datagrams can be sent by UDP.

1.1 Network Protocols

The TCP2RS uses IP protocol for network communications. The supported protocols are

ARP, UDP, TCP, ICMP, Telnet, TFTP, DHCP, HTTP, and SNMP. For connections to

the serial port, TCP, UDP or Telnet protocols are used. Firmware updates can be

performed using TFTP.

The Internet Protocol (IP) defines addressing, routing, and data block handling over the

network. The Transmission Control Protocol (TCP) assures that no data is lost or

duplicated, and that everything sent to the connection arrives correctly at the target.

For typical datagram applications in which devices interact with other devices without

maintaining a point-to-point connection, User Datagram Protocol (UDP) is used.

----------- TCP2RS -------------- User’s manual -------------------- page 6/43

1.1.1 Packing Algorithms

Two software selectable packing algorithms define how and when packets are sent to the

network. The standard algorithm is optimized for applications in which the TCP2RS is

used in a local environment, allowing for very small delays for single characters while

keeping the packet count low. The alternate packing algorithm minimizes the packet

count on the network, and is especially useful in applications in a routed Wide Area

Network (WAN). Adjusting parameters in this mode can economize the network data

stream.

1.1.2 Ethernet (MAC) Address

The Ethernet address is also referred to as the hardware address or the MAC address. The

first three bytes of the Ethernet Address are fixed. The fourth, fifth, and sixth bytes are

unique numbers assigned to each TCP2RS.

Table 1-1: Sample Ethernet Address

00-20-4A-14-01-18 or 00:20:4A:14:01:18

1.1.3 Internet Protocol (IP)

Address

Every device connected to an IP network must have a unique IP address. This address is

used to reference the specific TCP2RS. See Appendix F for more information on IP

Addressing.

1.1.4 Port Number

Every TCP connection and every UDP datagram is defined by a destination IP address

and a port number. For example, a Telnet application commonly uses port number 23. A

port number is similar to an extension on a PBX system.

----------- TCP2RS -------------- User’s manual -------------------- page 7/43

2: Installation

This chapter describes the TCP2RS and shows how to install it on a basic network.

2.1 Product Description

2.1.1 Serial Interface

The TCP2RS has a serial port that supports RS-232 and RS-485 serial standards

(firmware selectable) up to 115.2 Kbps.

Figure 2-1: Serial Interface

2.1.2 Network Interface

The TCP2RS’s contains a reset switch, and an RJ45 (10Base-T) Ethernet port that

supports up to 10 Mbps.

Figure 2-2: Network Interface

2.1.3 LEDs

Six LEDs are located on the top of the unit. The following table explains their functions:

A F

L R

B(RS-232)

(RS-485) Rx

A(RS-232)

(RS-485)

GND

----------- TCP2RS -------------- User’s manual -------------------- page 8/43

Table 2-1: TCP2RS LEDs

LED Function

A (Yellow)

Channel 2 If solid, channel 2 is idle. If blinking (1 sec cycle), the channel is connected

over the network.

F (Red)

Error and

Diagnostic

This LED and LED 2 (Green) together indicate a series of diagnostic patterns.

L (Green)

Network

Link

Active if good link.

R (Green)

Channel 1 It displays the status of channel 1.

If solid, channel 1 is idle. If blinking (1 sec cycle), the channel is connected

over the network. This LED is also used for diagnostic and error detection

when combined with LED 1 (Red)

RX,TX Serial communications.

2.1.4 Product Information Label

A product information label is located on the underside of the TCP2RS, and contains the

following information about your specific unit:

!" Serial Number

!" Product ID (name)

!" Product Description

!" Ethernet Address (also referred to as Hardware Address or MAC Address)

2.2 Installing the TCP2RS

The following diagram shows a properly installed TCP2RS.

To install the TCP2RS, complete the following steps in order. Refer to the numbers in the

previous figure.

1 Connect a serial device to the TCP2RS.

2 Connect an Ethernet cable to the 10BASE-T port.

----------- TCP2RS -------------- User’s manual -------------------- page 9/43

3 Supply power to the TCP2RS.

Note: The required input voltage is 220VAC.

4 Supply power to the serial device.

3: Getting Started

This chapter covers the required steps to get the TCP2RS on-line and working. There are

two basic methods used to log into the TCP2RS and setup the IP address:

!" Network Port Login: Make a Telnet connection to the network port (port 9999).

!" Serial Port Login: Connect a terminal or a PC running a terminal emulation

program directly to the TCP2RS’s serial port.

It is important to consider the following points before logging into and configuring the

TCP2RS:

!" The TCP2RS’s IP address must be configured before a network connection is

available.

!" Only one person at a time may be logged into the configuration port (port 9999).

This eliminates the possibility of several people simultaneously attempting to

configure the TCP2RS.

!" Network port logins cannot be disabled. The system manager will always be able

to access the unit. However, this port can be password protected.

!" Only one terminal at a time can be connected to the serial port. (In RS-485 mode,

the TCP2RS is capable of multidrop connections.)

3.1 Default IP Address

The TCP2RS ships with a default IP address of 192.168.0.25, if you want to use DHCP

you have to config IP 0.0.0.0 which automatically enables DHCP within the TCP2RS.

Provided a DHCP server exists on the network, it will supply the TCP2RS with an IP

address, gateway address, and subnet mask when the TCP2RS boots up. (If no DHCP

server exists, the TCP2RS will respond with a diagnostic error: the red Diagnostic LED

----------- TCP2RS -------------- User’s manual -------------------- page 10/43

blinks continuously and the green Status LED blinks five times). This address will not

appear in the TCP2RS’s configuration screens; however, if you enter Monitor Mode from

the serial port with network connection enabled (see Monitor Mode), and issue the NC

command, you will see the TCP2RS’s IP configuration.

3.2 IP Address Configuration

The TCP2RS’s IP address must be configured before a network connection is available.

If the IP address was not set automatically via DHCP, set it now using a network or serial

port login and the setup (configuration) menu.

3.2.1 Network Port Login (1)

The easiest way for setting up the IP direction of the TCP2RS converter is using the little

utility called TCP2RSSetup that comes with the converter.

First of all we will write down Ethernet address that comes printed on every device label.

This address is unique and different from other network devices. It’s the hardware

address that every interface has (something like 00-20-4A-61-05-19).

Into the “Extras” disc that comes with the converter, there is an Utility called

TCP2RSSetup. This utility is made for configuring the IP address of the converter. Steps:

1- Start the program

2- Insert the Hardware address that comes with the converter, and desired IP

address.

3- Click Configurar (This will assign temporarily an IP address to the converter

and opens an internet explorer page for configuring it)

4- Click Connect and Server Properties

5- Enter desired IP and netmask ans click Update settings

Note: This utility only links IP address with hardware address, but it is not

stored in device’s memory, until we enters into config mode and update

this settings.

3.2.2 Network Port Login (2)

The ARP method is available under UNIX and Windows-based systems. If the TCP2RS

has no IP address, it will set its address from the first directed TCP/IP packet it receives.

1 On a UNIX host, create an entry in the host’s ARP table using the intended IP

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