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W&T 18801 Manual

Interface modules
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W&T
Manual
Interface modules
W&T
Subject to error and alteration
Interface modules
Model
Version
18801, 18811
18802, 18812
18803, 18813
18601, 18611
18602, 18612
18401, 18411
18402, 18412
18101, 18111
18120, 18121
18311
1.4
51

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Summary of Contents for W&T 18801

  • Page 1 W&T Interface modules Manual Interface modules Model 18801, 18811 18802, 18812 18803, 18813 18601, 18611 18602, 18612 18401, 18411 18402, 18412 18101, 18111 18120, 18121 18311 W&T Version Subject to error and alteration...
  • Page 2 W&T Interface modules © 07/2006 by Wiesemann und Theis GmbH Subject to error and alteration: Since it is posssible that we make mistakes, you mustn’t use any of our statements without verification. Please, inform us of any error or misunderstanding you come about, so we can identify and eliminate it as soon as possible.
  • Page 3 W&T Interface modules The modular design of all W&T Com-Servers as well as most of the W&T PC cards allows them to be equipped with various serial interface types. Modification of the standard units is accomplished by simply exchanging the existing interface modules with modules of the desired interface type.
  • Page 4 W&T Interface modules Index Inhalt Common characteristics and mechanical details ....55 RS232 DTE Interface Modules, Model 188x1 ......57 RS232 DCE Interface Modules, Model 188x2 ......59 RS232/RS422/RS485 Interface Modules, Model 188x3 ..61 RS422/RS485 Interface Modules, Model 186x1 ..... 69 Profibus Interface Modules, Model 186x2 ......
  • Page 5 W&T Interface modules Common characteristics and mechanical details Many W&T Interfaces are characterized by modular construction with a strict division into basic and interface electronics, so that changing out the integrated, plug-in Interface Modules allows you to freely select the interface type for the device. In addition you can use the W&T Interface Modules to equip third-party devices which only have a serial TTL interface with various standard interfaces: RS232, RS422, RS485, 20mA,...
  • Page 6 W&T Interface modules Dimensional drawing The following drawing indicates the dimensions of the Module as well as the position of the connectors and attachment points. Shown in the drawing is the Combi-Module 18833, but the dimensions apply to all Modules with SUB-D connector. Important installation note When installing or replacing the Interface Modules, visually inspect to ensure that the module does not cause a short...
  • Page 7 RS232 DTE interface for devices equipped with a serial TTL port. The modules support all RS232 data and handshaking signals. Modules 18801 and 18811 differ only in the arrangement of the post connector for the serial TTL port, and are in every other respect functionally identical.
  • Page 8 W&T Interface modules Pin configuration The RS232 connection for the modules is configured as a 9-pin male SUB-D connector, with the TTL interface formatted as 12-pin male post connector. Refer to the following table for connector pin assignments: TTL interface RS232 interface pin# signal...
  • Page 9 W&T Interface modules RS232 DCE Interface Modules, #188x2 Function The W&T Interface Modules 18802 and 18812 provide an RS232 DCE interface for devices equipped with a serial TTL port. The modules support all RS232 data and handshaking signals. Modules 18802 and 18812 differ only in the arrangement of the post connector for the serial TTL port, and are in every other respect functionally identical.
  • Page 10 W&T Interface modules Pin configuration The RS232 connection for the modules is configured as a 9-pin female SUB-D connector, with the TTL interface formatted as 12-pin male post connector. Refer to the following table for connector pin assignments: TTL interface RS232 interface pin# signal...
  • Page 11 W&T Interface modules RS232/RS422/RS485 Interface Modules, #188x3 Function The W&T Interface Modules 18803, 18813 and 18833 provide an RS232, RS422 or RS485 interface for devices equipped with a serial TTL port. The Interface Module is configurable for the various operating modes via an 8-position DIL switch.

  • Page 12: Pin Configuration

    W&T Interface modules Pin configuration The RS232/RS422/RS485 connection for the modules is configured as a 9-pin male SUB-D connector, with the TTL interface formatted as 12-pin male post connector. Refer to the following table for connector pin assignments: TTL interface pin# signal RS232...
  • Page 13 W&T Interface modules Operating modes The Interface Modules are configurable for the following modes using DIL switches: RS232 The Interface Module converts all available TTL data and hand- shake signals into RS232 signals. This mode provides one RxD and TxD channel each in the respective direction, along with six handshake channels (RTS, CTS, DSR, DCD, DTR and RI).
  • Page 14 W&T Interface modules RS485 4-wire mode with handshake control The RS485 driver chip is turned on with a TTL Low level on the „DTR“ or „RTS“ line, whereas a TTL High level on this line puts the driver in a high-impedance state. The receiving channel in this mode is always active.

  • Page 15: Important Note

    W&T Interface modules The DIL switch settings can be found in the following table: Operating mode RS232 RS422, RS485, 4-wire bus master DTR handshake RS422, RS485, 4-wire bus master RTS handshake RS485, 4-wire / 2-wire with echo DTR control RS485, 2-wire without echo DTR control RS485, 4-wire / 2-wire with echo RTS control...
  • Page 16 W&T Interface modules Termination All RS485 modes require termination of the bus system with a termination network. The resistor combination integrated in the module performs two tasks in RS485 applications: 1. The connected line is terminated corresponding to its impedance, which prevents signal reflections at the cable end. 2.

  • Page 17: Connection Examples

    W&T Interface modules Connection examples RS232 application with hardware handshake RS232 interface RS422 application with hardware handshake RS422 interface Data Out A RxD A (-) Data Out B RxD B (+) Data In A TxD A (-) Data In B TxD B (+) Handshake Out A CTS A (-)
  • Page 18 W&T Interface modules Technical Data Operating modes: RS232, RS422 RS485 2- or 4-wire Baud rate: RS232: 0..230 KBaud RS422: 0..10 MBaud RS485: 0..5 MBaud Data format: Supported signals: RS232: RxD, TxD, RTS, CTS DSR, DCD, DTR, RI RS422: RxD A/B, TxD A/B CTS A/B, DTR A/B RS485: RXD A/B, TxD A/B ESD immunity:...
  • Page 19 W&T Interface modules RS422/RS485 Interface Modules, #186x1 Function The W&T Interface Modules 18601 and 18611 provide an RS422 or RS485 interface for devices equipped with a serial TTL port. The Interface Module is configurable for the various operating modes via an 8-position DIL switch. Modules 18601 and 18611 differ only in the arrangement of the post connector for the serial TTL port, and are in every other respect functionally identical.
  • Page 20 W&T Interface modules Pin configuration The RS422/RS2485 connection for the modules is configured as a 9-pin male SUB-D connector, with the TTL interface format- ted as 12-pin male post connector. Refer to the following table for connector pin assignments: TTL interface RS422/RS485 interface pin# signal...
  • Page 21 W&T Interface modules Operating modes The Interface Modules are configurable for the following modes using DIL switches: RS422 The Interface Module supports one data and one handshake channel each (selectable DTR or RTS handshake output). The RS422 sender/receivers are always active. RS485 One data channel in each direction is always available in all RS485 modes.
  • Page 22 W&T Interface modules RS485 2-wire mode with handshake control The RS485 driver chip is turned on with a TTL Low level on the „DTR“ or „RTS“ line, whereas a TTL High level on this line puts the driver in a high-impedance state. The receiving channel is deactivated when the driver is on, and enabled when the driver is in the high-impedance state.
  • Page 23 W&T Interface modules Termination All RS485 modes require termination of the bus system with a termination network. The resistor combination integrated in the module performs two tasks in RS485 applications: 1. The connected line is terminated corresponding to its impedance, which prevents signal reflections at the cable end. 2.
  • Page 24 W&T Interface modules Connection examples RS422 application with hardware handshake RS422 interface Data Out A RxD A (-) Data Out B RxD B (+) Data In A TxD A (-) Data In B TxD B (+) Handshake Out A CTS A (-) Handshake Out B CTS B (+) Handshake In A...
  • Page 25 W&T Interface modules Technical Data Operating modes: RS422 RS485 2- or 4-wire Baud rate: RS422: 0..10 MBaud RS485: 0..5 MBaud Data format: Supported signals: RS422: RxD A/B, TxD A/B CTS A/B, DTR A/B RS485: RXD A/B, TxD A/B ESD immunity: up to 15kV per IEC 801-2, Level 4 using ESD-immune interface components...
  • Page 26 W&T Interface modules...
  • Page 27 W&T Interface modules Profibus Interface Modules, #186x2 Function The W&T Interface Modules 18602 and 18612 provide an RS485 2-wire-interface with Profibus pinout for devices equipped with a serial TTL port. Modules 18602 and 18612 differ only in the arrangement of the post connector for the serial TTL port, and are in every other respect functionally identical.

  • Page 28: Operating Modes

    W&T Interface modules Pin configuration The Profibus connection for the modules is configured as a 9-pin female SUB-D connector, with the TTL interface formatted as 12-pin male post connector. Refer to the following table for connector pin assignments: TTL interface Profibus interface pin# signal...
  • Page 29 W&T Interface modules Technical Data Operating mode: RS485 2-wire mode without echo, automatic control Baud rate: 0..10 MBaud Data format: Supported signals: RxD/TxD-P , RxD/TxD-N ESD immunity: up to 15kV per IEC 801-2, Level 4 using ESD-immune interface components Supply voltage: 5V DC ±5% Supply current: approx.
  • Page 30 W&T Interface modules...
  • Page 31 W&T Interface modules 20mA Interface Modules, #184x1 Function The W&T Interface Modules 18401 and 18411 provide a 20mA interface for devices equipped with a serial TTL port. The modules support one data line in each direction and can be used as an active or passive 20mA component. In the active mode the module supplies the current required by the respective 20mA loop, while in the passive mode the loop current must be supplied by the connected device.
  • Page 32 W&T Interface modules Protection against static charges All external signal lines use ESD-immune interface components to provide protection against static discharges of up to 15kV per IEC 801-2, Level 4. Pin configuration The 20mA connection for the modules is configured as a 9-pin male SUB-D connector, with the TTL interface formatted as 12-pin male post connector.
  • Page 33 W&T Interface modules Connection examples Examples of module switching into active/ passive mode are shown on the following drawings: Active Tx and active Rx current loop application 20mA interface Data Out 20mA RxD + Data Out+ RxD - Data Out - Data Out GND Data In 20mA TxD +...
  • Page 34 W&T Interface modules Technical Data Operating mode: Active and passive mode Full and halfduplex mode Baud rate: 0..19.200 Baud Data format: Supported signals: RxD, TxD ESD immunity: up to 15kV per IEC 801-2, Level 4 using varistors Supply voltage: 5V DC ±5% 12V DC (in active mode only) Supply current: approx.
  • Page 35 W&T Interface modules 20mA Interface Modules, #184x2 Function The W&T Interface Modules 18402 and 18412 provide a 20mA interface for devices equipped with a serial TTL port. The modules support one data line in each direction and can be used as an active or passive 20mA component. In the active mode the module supplies the current required by the respective 20mA loop, while in the passive mode the loop current must be supplied by the connected device.
  • Page 36 W&T Interface modules Protection against static charges All external signal lines use ESD-immune interface components to provide protection against static discharges of up to 15kV per IEC 801-2, Level 4. Pin configuration The 20mA connection for the modules is configured as a 9-pin male SUB-D connector, with the TTL interface formatted as 12-pin male post connector.
  • Page 37 W&T Interface modules Connection examples Examples of module switching into active/ passive mode are shown on the following drawings: Active Tx and active Rx current loop application 20mA interface Data Out 20mA RxD + Data Out+ RxD - Data Out - Data Out GND Data In 20mA TxD +...
  • Page 38 W&T Interface modules Technical Data Operating mode: Active and passive mode Full and halfduplex mode Baud rate: 0..19.200 Baud Data format: Supported signals: RxD, TxD ESD immunity: up to 15kV per IEC 801-2, Level 4 using varistors Supply voltage: 3,3V..5V DC Min.
  • Page 39 W&T Interface modules POF Interface Modules, #181x1 Function The W&T Interface Modules 18101 and 18111 provide a plastic fiber optic interface for devices equipped with a serial TTL port. The modules support one data line in each direction and transmit data over a distance of max. 100 meters.
  • Page 40 W&T Interface modules Module diagram locking levers transmit line receive line Pin configuration The fiber optic connection for the interface is configured as a self-locking coupling for duplex plastic fiber optics, with the TTL interface formatted as 12-pin male post connector. Refer to the following table for connector pin assignments: TTL interface Pin#...
  • Page 41 W&T Interface modules Assembly Connecting the plastic fiber optic cable to the interface requires no special tools: • Trim the fiber optic cable to the desired length using a sharp knife. Make your cut as close to a right angle to the longitudinal axis of the cable as possible.
  • Page 42 W&T Interface modules Technical Data Baud rate: 0..115.200 Baud Data format: Supported signals: RxD, TxD Max. distance: 100m Supply voltage: 5V DC ±5% Supply current: approx. 40mA TTL connector: 12-pin, 2mm post connector POF connector: Integrated socket with automatic interlocking of the fiber-optic cable POF medium: Duplex plastic optical fiber cable...
  • Page 43 W&T Interface modules Fiber Optic Interface Modules, #1812x Function The W&T Interface Modules 18120 and 18121 provide a fiber optic interface with ST connectors for devices equipped with a serial TTL port. Modules 18120 and 18121 differ only in the arrangement of the post connector for the serial TTL port, and are in every other respect functionally identical.
  • Page 44 W&T Interface modules Pin configuration The fiber optic connection for the modules is configured as a ST connector, with the TTL interface formatted as 12-pin male post connector. Refer to the following table for connector pin assignments: TTL interface Pin# signal funktion 5V ±5%...
  • Page 45 W&T Interface modules Technical Data Baud rate: 0..1,5 MBaud Data format: Supported signals: RxD, TxD Fiber-optic medium: Duplex multimode fiber-optic cable Max. distance: 50/125µm: typ. 3200m, min. 1400m @3dB/km 62.5/125µm: typ. 3800m, min. 2200m @3.5dB/km 200um PCS fiber: typ. 2500m, min. 1500m @8dB/km Optical budget: 50/125µm: typically 9.6dB, min.
  • Page 46 W&T Interface modules...

  • Page 47: Supply Voltage

    W&T Interface modules Interface Module USB, #18311 Function The W&T Interface Module18311 equips devices having a serial TTL interface with a USB slave interface. T h e m o d u l e u s e s a n i n t e g r a t e d s e r i a l E E P R O M f o r non-volatile storage of Vendor ID, Product ID, Serial Number and a product description.

  • Page 48: Wiring Configuration

    W&T Interface modules Wiring configuration The USB connection on the module is implemented as a USB female of type „B“, and the TTL interface on the module as a 12-pole header connector. The connector pin configuration is shown in the following table. pin# signal function...
  • Page 49 W&T Interface modules Technical Data Baud rate: 300 baud..3 MBaud adjustable baud rates = 3 MBaud/n, with n = 1..16383 Data bits: 7 or 8 Stop bits: 1 or 2 Parity: no, even, odd, mark space Supported signals: RxD, TxD, RTS, CTS, DSR, DCD, DTR, RI Integrated memory: 384-byte receive buffer...
  • Page 50 W&T Interface modules...

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