Moxa TCC-100 Series User`s Guide
Contents
1. s casing so that the user must open the casing to disable or change the resistor s strength Moxa offers a better solution The TCC 100 series terminator is configured with a DIP switch located on the outside of the converter s casing Auto Baudrate Detection The TCC 100 series incorporates a method for automatically detecting the serial signal s baudrate by hardware This is an extremely convenient feature for the user Even if a device s baudrate changes the signal will still be transmitted through the RS 232 to RS 422 485 converter without any problem Product Features e RS 232 to RS 422 conversion with RTC CTS support e RS 232 to 2 4 wire RS 485 conversion e Detachable wall and DIN Rail mounting for easy RS 422 485 wiring e PWR Tx and Rx LEDs e 15 KV ESD protection e 2 KV isolation TCC 100I TCC 100I T for both power and RS 422 485 signals e Operating temperature TCC 100 100T 20 to 60 C 4 to 140 F TCC 100 T 100T T 40 to 85 C 40 to 185 F Package Checklist Before installing the Moxa TCC 100 product verify that the package contains the following items e TCC 100 100I media converter e DK 35A DIN Rail mounting kit e Power jack to 3 pin terminal block adaptor e User s manual this document e Warranty card Note Please notify your sales representative if any of the above items is missing or damaged Product Specifications Communication RS 232 Signal Supports Tx Rx RTS CTS Female2. DB9 interface RS 422 485 Signal Terminal block connector DIP Switch selectable 4 wire RS 422 with RTS CTS up to 10 nodes 1 2 km 4 wire RS 485 up to 32 nodes 1 2 km 2 wire RS 485 up to 32 nodes 1 2 km RS 485 Data Direction ADDC Control 50 bps to 921 6 Kbps ESD Protection 15 KV 2 KV TCC 1001 TCC 1001 T for both power and signal Environmental Limits Operating TCC 100 TCC 100T Temperature 20 to 60 C 4 to 140 F TCC 100 T TCC 100I T 40 to 85 C 40 to 185 F Storage Temperature Humidity Power Requirements Input Power Voltage External Power 12 48 VDC terminal block Protection Protection Power Consumption TCC 100 TCC 100 T 85 mA O 12V Physical Characteristics Dimensions 67 x 100 x 22 mm without ears TT an Terminal Block d WARNING 1 This equipment is intended to be used in Restricted Access Locations like computer rooms for which access can only be gained by SERVICE PERSONNEL or USERS who have been instructed that the metal chassis of the equipment is extremely hot Access to the room must be through the use of a key or security identity system 2 External metal parts of the equipment are hot Be sure to protect your hands before touching the equipment WARNING 1 The DC source should come from an external adaptor or 12 to 48 VDC source not from DC mains by using a transfer device 2 This unit should be installed or set up by a qualified service pers
3. 32 hardware is relatively easy to design and the device can be readily connected to most PCs The drawback is that RS 232 is a point to point interface and it imposes a distance limitation of only 15 meters between the device and the computer Transio TCC 100 RS 232 to RS 422 485 Converter RS 422 485 To overcome these limitations many users employ RS 232 to RS 422 485 converters allowing RS 232 devices to connect to an industrial RS 422 or RS 485 network and transmit data over distances up to 1 2 km The RS 422 485 standards overcome the distance limitation by using a differential signal for transmitting data and control signals Transmission distance and multi drop connections are not the only issues of importance for industrial applications In addition housing wiring power supply and over surge protection are also serious concerns The TCC 100T and TCC 100T T models come with isolation protection for users who need an industrial grade interface conversion product to extend RS 232 transmission distance and increase networking capability The superior industrial application design which includes DIN Rail mounting terminal block wiring external terminal block power and optical isolation for system protection makes the TCC 100 series suitable for use in critical industrial environments Your RS 232 devices can be used as part of an industrial RS 422 485 network but without any hardware or software changes RTS CTS RS
4. 422 Handshaking Signals The TCC 100 series supports RS 422 handshaking signals The RTS and CTS signals help solve the RS 422 signal handshaking problem and reduce data transmission errors Built in RS 485 ADDC Intelligence ADDC Automatic Data Direction Control is a Moxa technology that uses a clever hardware solution to manage RS 485 s data flow control problem ADDC is a hardware data flow solution that automatically senses and controls data direction making the handshaking signal method unnecessary Isolation Moxa s electrical isolation technology uses two photo couplers to create a gap in each electrical signal One photo coupler transforms the electrical signal into a light signal which is transmitted across a small gap and then the other photo coupler transforms the light back into an electrical signal In this way the two electrical circuits are completely isolated from each other limiting the damage that could otherwise be caused by ground loops in the electrical signal Reverse Power Protection The Reverse Power Protection feature provides extra protection against accidentally connecting the power cables to the wrong terminal The converter is designed to automatically detect which power wire is positive and which is negative and then adjust the power supply accordingly DIP Switch Selectable Terminator For many products of this type the termination resistor is set by a jumper located inside the product
5. Moxa TCC 100 Series User s Guide Ninth Edition March 2011 www moxa com F 2011 Moxa Inc All rights reserved P N 1802001000318 Moxa TCC 100 Series User s Guide The software described in this manual is furnished under a license agreement and may be used only in accordance with the terms of that agreement Copyright Notice O 2011 Moxa Inc All rights reserved Trademarks The MOXA logo is a registered trademark of Moxa Inc All other trademarks or registered marks in this manual belong to their respective manufacturers Disclaimer Information in this document is subject to change without notice and does not represent a commitment on the part of Moxa Moxa provides this document as is without warranty of any kind either expressed or implied including but not limited to its particular purpose Moxa reserves the right to make improvements and or changes to this manual or to the products and or the programs described in this manual at any time Information provided in this manual is intended to be accurate and reliable However Moxa assumes no responsibility for its use or for any infringements on the rights of third parties that may result from its use This product might include unintentional technical or typographical errors Changes are periodically made to the information herein to correct such errors and these changes are incorporated into new editions of the publication Technical Support Contact I
6. ct s RS 232 female 4 DB9 port to your RS 232 5 GND device or to your 6 computer s COM port 9876 7 CTS 8 RTS 9 RS 232 Pin Assignment Diagram STEP 5 Test the connection After configuring the DIP switches connecting the power wiring the terminal block and attaching the RS 232 connector we suggest using a console terminal program such as HyperTerminal or Moxa Terminal Emulator to test the connection If you have an RS 422 485 serial board such as the Moxa CP 132 a 2 port RS 422 485 board installed in your PC you can connect your PC s COM port to the TCC 100 s RS 232 port and then connect the TCC 100 s RS 422 485 terminal block to one of the RS 422 485 serial board s ports Alternatively if you have already set up an RS 422 or RS 485 network you can also connect the TCC 100 s RS 422 485 terminal block directly to that network Next start HyperTerminal or Moxa Terminal Emulator and then open a connection to both the COM port and the port associated with the TCC 100 s RS 422 485 port Test the connection by typing a few characters on your PC s keyboard The characters you type should show up in the HyperTerminal window that is currently inactive indicating that the typed 12 characters were transmitted between the TCC 100 s RS 232 port and RS 422 485 terminal block connector STEP 6 Placement Options In addition to placing the TCC 100 on a desktop or other horizontal surface you may also use t
7. he DIN Rail or wall mount options as illustrated below DIN Rail Wall Mounting Transio y TCC 100 RS 232 to RS 422 485 Converter Termination Resistor Diagram Termination is designed to mitigate noise from the RS 422 485 S3 On to Enable mm A S3 Off to Disable transmission signals If the network cable is too long undesirable transmission line effects could arise The best method for mitigating energy on an unused conductor is to dissipate the energy as heat by terminating both ends of the unused conductor to ground with resistors this method is called bi directional termination The resistance of the resistors should be equal to the characteristic impedance of the line The most common RS 485 twisted pair has a characteristic impendence of 100 to 120 ohms Moxa s termination technique is bi directional termination which offers excellent signal integrity With this technique the line drivers can be located anywhere on the network 13 Function Diagram Communication TXD Controller ben ll RS 232 FXD_ Line Driver _RTS W ES ce TxD RS 422 485 _ TxD lt gt Line Dri RxD Data B Line Driver Ka RxD Data b _ a RS 422 Isolation A Data Data Output Input 5V Regulated Power Supply Local Power 12 30 VDC Typical Applications RS 485 Application A typical RS 485 application for the TCC 100 series is sh
8. nal block There are three wiring options available for connecting to the TCC 100 s RS 422 485 terminal block 2 wire RS 485 When using the 2 wire RS 485 wiring Li option connect three wires from the Data Rx B Data TCC 100 s terminal block to the Data Rx A Data opposite connection As shown in the Ae fi from Data to Dat RTS A igure connect from Data to Data CTS B from Data to Data and from SGND EA to SGND SGND SGND 4 wire RS 485 When using the 4 wire RS 485 wiring Cep be option connect five wires from the Tx Rx B Data TCC 100 s terminal block to the Tx SE d opposite connection As shown in the tg figure connect from Tx B to Rx CTS B from Tx A to Rx from Rx B to sas Sa Tx from Rx A to Tx and from SGND to SGND 11 P RS 422 When using the RS 422 wiring option ca aa first follow the 4 wire RS 485 wiring Tt aoe instructions given above el RIS 8 Optional RTS CTS Handshaking N 22582 Optional Signals ve l CTS A If your software is set up to send and SGND A SGND receive RTS CTS signals over separate wires you should also connect from RTS B to CTS from RTS A to CTS from CTS B to RTS and from CTS A to RTS STEP 4 Attach the RS 232 connector Depending on your Female DB9 PIN RS 232 application use the 54321 1 appropriate serial cable to 2 TxD connect from the TCC 100 3 RxD produ
9. nformation www moxa com support Moxa Americas Toll free 1 888 669 2872 Tel 1 714 528 6777 Fax 1 714 528 6778 Moxa Europe Tel 49 89 3 70 03 99 0 Fax 49 89 3 70 03 99 99 Moxa China Shanghai office Toll free 800 820 5036 Tel 86 21 5258 9955 Fax 86 21 5258 5505 Moxa Asia Pacific Tel 886 2 8919 1230 Fax 886 2 8919 1231 Table of Contents Ee e dee Te d De c c r c pro bi lu c lui n Sun la n Su taduducsdadaducansees 1 ONA QUEN c r ga 2 I4 s 9 g 18 1e n m 80 g7 c 4 Package CheckliSf neo 4 Product SpecificatiOnS na 4 El ER TER 6 LED Otter 7 Save Ce UE d Ta BEE 8 Hardware Installation 9 Termination ReSIStor Diagra Musia sasssa casas nue neces 13 Function D IS ral EE 14 Isolation Block Diagram iiair buni inaia 14 TY PICall AD DPNGATIONS E 14 1 Introduction TCC 100 series consists of RS 232 to RS 422 485 media converters The I versions the TCC 100I TCC 100I T come with 2 KV isolation protection The following topics are covered in this chapter Overview Product Features Package Checklist Product Specifications Schematic LED Indicators OoOQOQd00 Overview Many important devices used in today s industrial environment are still designed for use with an RS 232 interface The reason is due in part to tradition and in part to convenience RS 2
10. on Schematic 11 5 mm 22 mm LED Indicators The TCC 100 s top panel contains three LED indicators as described in the following table LED Name LED Function PWR Red indicates the power is on Green indicates the TCC 100 is receiving data from the RS 232 port Yellow indicates the TCC 100 is receiving data from the RS 422 485 port 2 Installation This chapter includes information about how to install TCC 100 products and shows function and block diagrams The following topics are covered in this chapter Hardware Installation Termination Resistor Diagram Function Diagram Isolation Block Diagram Typical Applications nung Hardware Installation Installing the TCC 100 involves six straightforward steps e STEP 1 Set the DIP switches e STEP 2 Attach the power supply e STEP 3 Wire the terminal block e STEP 4 Attach the RS 232 converter e STEP 5 Test the connection e STEP 6 Choose a placement option STEP 1 Set the DIP Switches The DIP switches on the TCC100 100I are used to set the signal transmission mode and to enable or disable the termination resistor You can configure the converter for either RS 422 or RS 485 transmission mode Your program and serial port should be set to match the converter s settings SW1 Switch 1 selects RS 422 or RS 485 mode The default is On for RS 422 mode SW 2 Switch 2 selects 2 wire or 4 wire RS 485 mode The default is On f
11. or 4 wire RS 485 Note that if Switch 1 is set to RS 422 mode then Switch 2 is inactive SW3 Switch 3 enables the terminator to 120 ohms When enabled the 120 ohm resistor prevents signal reflection during RS 485 transmission The default is On to enable the terminator If your particular application does not require using the termination resistor then simply set Switch 3 to the off position to disable it Dip Switch Settings RS 422 terminator active ON ON ON ON OFF 4 wire RS 485 terminator active 2 wire RS 485 terminator active The DIP 2 switches are used to configure the pull high low resistors for different applications 1K Pull High Low Resistor DIP 2SWI DIP 2SW2 150K 1K default ON Jon Y O NOTE We recommend setting the pull high low resistor to 1K ON ON when termination is enabled 10 STEP 2 Attach the power supply The TCC 100 is powered by an external 12 to 48 VDC power supply To connect the power supply run two wires from the V and V terminals on the TCC s 3 connector terminal block to the DC power supply as shown in the figure Once the power supply is connected to its power source the PWR LED located on TCC s top panel should turn red Power Supply 12 30 VDC NOTE The TCC 100 series supports reverse power protection I e it will automatically detect which power wire is negative and which is positive STEP 3 Wire the termi
12. own in the following figure In this scenario two TCC 100 units are used to connect two PCs to an RS 485 network The third TCC 100 is used to connect the PLC which is designed for the RS 232 interface to the RS 485 network In this way both PCs are able to interact with the PLC and the LCD display 14 RS 422 Application A typical RS 422 application for the TCC 100 Series is shown in the following figure In this scenario two TCC 100 units are used to create a point to point connection between a PC and a scales The advantage of using two TCC 100 units to convert from RS 232 to RS 422 and then back to RS 232 is that the RS 422 cable connecting the two converters can be up to 1 2 km in length this is big improvement compared to the 15 m distance limitation imposed by the RS 232 interface i ay Rx Tx lll optionai RTS CTS RS 422 Point to Point MOXA nan MOXA TCC 100I1 TCC 1001 15
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