Crestron RS-232/42 Operation Manual
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Crestron RS-232/42 Operation Manual

Crestron RS-232/42 Operation Manual

Ethernet rs-232/422 communications module
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Summary of Contents for Crestron RS-232/42

  • Page 3: Table Of Contents

    Crestron CEN-COM Contents Ethernet RS-232/422 COM Module: CEN-COM Description... 1 Functional Description ... 1 Physical Description... 2 Leading Specifications... 6 Setup ... 6 Hardware Hookup ... 6 Setup Menus ... 7 Stand-Alone Operations: Crestron e-control™ ... 12 SIMPL™ Windows Programming ... 13 How the Program Works ...

  • Page 5: Ethernet Rs-232/422 Com Module: Cen-Com

    Crestron CEN-COM Ethernet RS-232/422 COM Module: CEN-COM Description Functional Description The CEN-COM is an Ethernet device with two independent bidirectional serial ports that can support either asynchronous RS-232 or RS-422-based communication. The unit enables a system to overcome the distance limitations of RS-232/RS-422 communication.

  • Page 6: Physical Description

    Ethernet RS-232/422 COM Module Physical Description The CEN-COM is housed in a black enclosure with silk-screened labels on the front and rear panels. On the front of the unit there are 13 LEDs for indicating the unit’s current status. All connections, except for the Ethernet connection, are made on the back of the unit.
  • Page 7 Crestron CEN-COM CEN-COM Ports A number of ports are provided on the back of the CEN-COM. Each has a silk- screened label. Refer to illustration and descriptions below. The Ethernet port is located on the front panel. CEN-COM Ports 12 VDC .5 A This DC power socket connector is used to supply power via an external AC power pack.
  • Page 8 Ethernet RS-232/422 COM Module COM A / B These two 9-pin connectors (DB9) connect to serial equipment. These bidirectional serial ports are used for RS-232, RS-422, or RS-485 communication. NOTE: The pinout of each 9-pin port is non-standard (refer to table after this note); it contains RS-422 pins in addition to RS-232.
  • Page 9 Crestron CEN-COM Ethernet Port (RJ45) Pinouts CEN-COM Indicators There are 13 LED indicators located on the front panel of the CEN-COM. Refer to illustration and descriptions below. CEN-COM Indicators PWR (Power) This LED illuminates when power is supplied to the CEN-COM. RXD (Ethernet) This LED illuminates when the unmarked Ethernet port on the front panel of the CEN-COM receives Ethernet data.

  • Page 10: Leading Specifications

    Ethernet RS-232/422 COM Module RTS (COM A / B) If RTS/CTS handshaking is enabled, these LEDs illuminate when the CEN-COM is ready to receive data from a serial device attached to the respective COM ports. CTS (COM A / B) These LEDs illuminate when the serial device on the respective COM port is ready to accept data from the CEN-COM.

  • Page 11: Setup Menus

    Crestron CEN-COM shown in the diagram is the Ethernet/LAN connection made to the front panel of the unit. Use a CAT 5 cable; not supplied. Hookup Connections for CEN-COM Setup Menus The CEN-COM setup menus can be accessed only after connecting the communications port of the PC to the PC port on the CEN-COM.
  • Page 12 Ethernet RS-232/422 COM Module Apply power to the CEN-COM and notice that the Viewport window changes as communication is established with the CEN-COM, shown below. Activity in the Viewport Window Enter a question mark (?) and depress ENTER to display the setup menu, shown below.
  • Page 13 Crestron CEN-COM Sample Response to the “add_master” Command Each row of the master list contains an index number enclosed in brackets, the IP ID of the device to which the system communicates (provided in decimal and hex), and an IP address separated by a colon (:). Each line appears as follows. [INDEX #]decimal IP ID(hex IP ID):IP ADDRESS To add an IP address to the master list, enter the index number, the IP ID (in decimal), and the desired IP address separated by decimal points (.), after the...
  • Page 14 Ethernet RS-232/422 COM Module def_router The default router is the address of the router the CEN-COM uses to communicate with devices that are not connected directly on that subnet. To change the default router, enter the default router address after the “def_router” command.
  • Page 15 Crestron CEN-COM Refer to the table after this paragraph for examples of valid commands. Valid “port” Commands port<CR> port 1,9600,N81<CR> port 1,NONE,RS232,9600,N81,pacing 0<CR> port 2,CIP,RS422,19200,E71<CR> port 1, DISABLE<CR> version Entering the “version” command provides the firmware version currently running within the connected CEN-COM. ping Enter the “ping”...

  • Page 16: Stand-Alone Operations: Crestron E-Control

    Ethernet RS-232/422 COM Module Stand-Alone Operations: Crestron e-control™ Crestron e-control encompasses two different technologies. Crestron e-control has both web pages that contain compiled Java classes that are usable from most browsers and an ActiveX control (herein known as ActiveCNX™) that is usable from Visual Basic, Internet Explorer, or any other ActiveX compatible development environment such as Visual C++.

  • Page 17: Simpl™ Windows Programming

    Crestron CEN-COM be found in the Crestron SDK documentation and example files. Be sure to enter the CEN-COM IP address for the IP parameter of this component. The ActiveCNX control can be thought of as a "Virtual Communication Port" or "e-control PC Interface symbol in SIMPL™...
  • Page 18 Ethernet RS-232/422 COM Module Block Diagram of System Incorporating a CEN-COM For this example, the CEN-COM is set at IP.ID 03. Notice that the IP address of the CNMSX for this example is 132.149.2.26 and the IP address of the CEN-COM is 132.149.2.25.

  • Page 19: How To Create The Program

    Crestron CEN-COM the help file in SIMPL Windows. From the Contents search on Symbol Card File or from the Index search on the names of the symbols for details. How to Create the Program Configuration Manager Use the Configuration Manager workspace (Project | Configure System) in SIMPL Windows to select and configure all the devices that need to be included into the system.

  • Page 20: Programming Manager

    Ethernet RS-232/422 COM Module System View of the CEN-COM in SIMPL Windows’ Configuration Manager For this example, a real COM port is used rather than a virtual COM port. To assign a real COM port, select the ST-COM from the Serial Drivers (General) folder in the Device Library.
  • Page 21 Crestron CEN-COM Expand the Ethernet folder and double click on the CEN-COM. Double click on Port A for a detail view of the symbol (alternatively CTRL+D or drag and drop into Detail View). Assign the signal as shown after this paragraph. Detail View of the CEN-COM in SIMPL Windows’...

  • Page 22: Problem Solving

    Ethernet RS-232/422 COM Module Problem Solving Troubleshooting The table following this paragraph provides corrective action for possible trouble situations. If further assistance is required, please contact a Crestron customer service representative. CEN-COM Troubleshooting PWR LED does not illuminate. CEN-COM does not communicate with PC.

  • Page 23: Return And Warranty Policies

    Crestron CEN-COM Return and Warranty Policies Merchandise Returns / Repair Service 1. No merchandise may be returned for credit, exchange, or service without prior authorization from CRESTRON. To obtain warranty service for CRESTRON products, contact the factory and request an RMA (Return Merchandise Authorization) number. Enclose a note specifying the nature of the problem, name and phone number of contact person, RMA number, and return address.

  • Page 24: Default Router

    Ethernet RS-232/422 COM Module Glossary of Terms Default Router Default router is the address of the router the device uses to communicate with devices that are not connected directly to the local network. IP Address Internet protocol address is a unique number that is used to represent every single computer in a network.

  • Page 25: Master List

    Crestron CEN-COM Master List Master list is a list of Crestron Internet Protocol (CIP) enabled devices that will be informed of any changes in the state of the controlled device. The device accepts commands from the addresses of these masters. NMS Trap Catcher NMS trap catcher is the address of a SNMP monitoring station that sends any alarm messages that the monitored device wishes to send.
  • Page 26 Ethernet RS-232/422 COM Module Crestron CEN-COM This page intentionally left blank. 22 • Glossary of Terms Operations Guide - DOC. 5719...
  • Page 27 Crestron CEN-COM Ethernet RS-232/422 COM Module This page intentionally left blank. Glossary of Terms • 23 Operations Guide - DOC. 5719...

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