SNAP-SCM-W2 OPTO 22, SNAP-SCM-W2 Datasheet

Page 1

... SNAP SERIAL COMMUNICATION MODULE USER’S GUIDE Form 1191-110210—February 2011 43044 Business Park Drive Phone: 800-321-OPTO (6786) or 951-695-3000 Fax: 800-832-OPTO (6786) or 951-695-2712 800-TEK-OPTO (835-6786) or 951-695-3080 SNAP-SCM-232 SNAP-SCM-485-422 SNAP-SCM-W2 SNAP-SCM-PROFI Temecula CA 92590-3614 • • www.opto22.com Product Support Services Fax: 951-695-3017 Email: support@opto22.com ...

Page 2

... OptoEMU, OptoEMU Sensor, OptoEMU Server, OptoOPCServer, OptoScript, OptoServer, OptoTerminal, OptoUtilities, PAC Control, PAC Display, PAC Manager, PAC Project, SNAP Ethernet I/O, SNAP I/O, SNAP OEM I/O, SNAP PAC System, SNAP Simple I/O, SNAP Ultimate I/O, and Wired+Wireless are trademarks of Opto 22. ...

Page 3

... Using SNAP Serial Modules with Legacy Hardware Checking the Firmware Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Specifications SNAP-SCM-232 and SNAP-SCM-485-422 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 SNAP-SCM-PROFI Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 SNAP-SCM-W2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 SNAP-SCM-W2 Maximum Cable Lengths for Conductor Size . . . . . . . . . . . . . . . . . . . . . . 16 LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 SNAP-SCM-232 and SNAP-SCM-485 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 SNAP-SCM-PROFI LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Module Switches—SNAP-SCM-PROFI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Module Switches—SNAP-SCM- Changing SNAP-SCM-232 and SNAP-SCM-485-422 Communication Parameters ...

Page 4

... Changing SNAP-SCM-PROFI Communication Parameters Configuring Wiegand Modules Sample Strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Configuring Your Own Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Configuring Serial Events and Reactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Loading New Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Removing a Serial Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Building a Three-Wire Cable for SNAP-SCM-232 Using the SNAP-SCM-232 or SNAP-SCM-485-422 as a Windows COM Port . . . . . . . . . . . . . . . . . 30 Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Configuring SNAP Serial Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Installing Software ...

Page 5

... The SNAP serial communication modules eliminate this problem by providing high-speed, isolated serial communications packaged in the compact SNAP module form. The SNAP-SCM-232, SNAP-SCM-485-422, and SNAP-SCM-W2 modules each provide two channels of serial data (one channel for a 4-wire SNAP-SCM-485-422). The SNAP-SCM-PROFI module provides one channel. ...

Page 6

... The SNAP-SCM-485-422 uses a simple screw-type connector for easy wiring of two 2-wire RS-485 ports or one 4-wire RS-485/422 port. The SNAP-SCM-W2 is ideal for security applications. It complies with the Security Industry Association Access Control Standard Protocol for the 26-bit Wiegand Reader Interface. The module receives incoming data from card readers, keypads, or other Wiegand devices ...

Page 7

... For Help If you have problems installing or using SNAP serial communication modules and cannot find help in this guide or on our website, you can contact Opto 22 Product Support. Phone: 800-TEK-OPTO (835-6786) 951-695-3080 (Hours are Monday through Friday p.m. Pacific Time) Fax: 951-695-3017 Email: support@opto22 ...

Page 8

... SNAP-PAC-SB2). If you are using an older brain or rack-mounted controller, such as SNAP Ultimate or SNAP Ethernet, see Install the Module SNAP serial communication modules can be installed in any position on an Opto 22 SNAP PAC mounting rack. Do not install more than eight serial communication modules of any type on the same rack. ...

Page 9

... SNAP-SCM-PROFI—If you are using an official PROFIBUS cable, termination is provided in the cable; therefore, switch the termination the cable and move the Term switch to OFF in the SNAP-SCM-PROFI module. Bias Provide bias at one point on the network by moving both the Pull Up and Pull Down switches to ON. SNAP SERIAL COMMUNICATION MODULE USER’ ...

Page 10

... Two-wire mode is the default; to use four-wire mode, see on page 20. NOTE: Vcc on the SNAP-SCM-485-422 is 5 VDC and is supplied by the module itself. Do not use this voltage to power another device can interfere with normal module operation. Two-Wire Mode SNAP-SCM-485-422 Top View SNAP Serial Communication Module User’ ...

Page 11

... RX – 8 SNAP-SCM-W2 If you have a SNAP-SCM-W2, use the supplied terminal strip to connect a Wiegand serial device to each port on the module, as shown in the diagram and table below. IMPORTANT: Some devices such as card readers can use other protocols. Make certain that your device has been correctly configured to use the Wiegand protocol ...

Page 12

... DB-9 Connector Apply Power to the Rack Power can usually be supplied by an Opto 22 SNAP-PS5 power supply; however, check total power requirements for all modules and the processor. When you apply power to the rack, the SNAP-SCM-232 and the SNAP-SCM-485-422 respond by blinking their TX LEDs (see diagram above for LED location). Additionally, on the SNAP-SCM-232 and ...

Page 13

... Baud Rate, Power-up Test Message, and EOM Character List. SNAP-SCM-W2 Configuration Use PAC Manager to configure SNAP-SCM-W2 serial modules, which involves telling the module what bit pattern you are using to transmit site and badge code data. For detailed configuration ...

Page 14

... Troubleshooting: Testing the SNAP-SCM-232 Using Telnet and HyperTerminal If you are having trouble establishing an Ethernet connection or sending and receiving data to a SNAP-SCM-232, you may want to test the module without using an application such as PAC Control. The following steps use the Microsoft Windows each other through the serial module. ...

Page 15

... Using SNAP Serial Modules with Legacy Hardware SNAP serial communication modules can also be used with the following legacy I/O processors on M-series or B-series mounting racks. Make certain you have the correct rack for the processor you are using (see the processor’s user guide for information). ...

Page 16

... Checking the Firmware Version If you need to check the processor’s firmware version, follow these steps. For the SNAP-SCM-232, SNAP-SCM-485-422, and SNAP-SCM-W2 modules you need to have PAC Manager installed on your computer. PAC Manager is located on the CD that came with the processor and is also available for free download from our website at www ...

Page 17

... In the Device Name field, type in the IP address of the I/O unit. Click the Status Read button at the top left side of the Inspect window. The status information from the I/O unit is displayed in the window: SNAP SERIAL COMMUNICATION MODULE USER’S GUIDE or choose Tools Inspect. SNAP Serial Communication Module User’s Guide ...

Page 18

... Warranty * Module performance is limited by the number of serial modules on the SNAP rack. Each rack backplane provides approximately 2.5 Mbps of bandwidth. ** Maximum number of modules per rack assumes an Opto 22 SNAP power sup- ply and SNAP rack. SNAP Serial Communication Module User’s Guide page 12. If the version number is older than 300– ...

Page 19

... Agency Approvals Warranty * Module performance is limited by the number of serial modules on the SNAP rack. Each rack backplane provides approximately 2.5 Mbps of bandwidth. ** With Opto 22 SNAP power supply and SNAP rack SNAP-SCM-W2 Specifications Channel-to-channel isolation 250 Vrms Logic supply voltage 5.0 VDC (± 0.15) ...

Page 20

... If you are using the SNAP-SCM-485-422 in 4-wire mode, only LEDs 1 and 3 are used. Since SNAP-SCM-W2 modules receive but do not transmit, LEDs 1 and 2 are not used. LEDs 3 and 4 function as shown in the diagram. SNAP-SCM-PROFI LEDs ...

Page 21

... Module Switches—SNAP-SCM-W2 OFF ON The switches on the top of the SNAP-SCM-W2 are set at the factory and should not be changed from their factory defaults. Factory default positions are shown in the diagram at left. SNAP Serial Communication Module User’s Guide ® ...

Page 22

... CHANGING SNAP-SCM-232 AND SNAP-SCM-485-422 COMMUNICATION PARAMETERS • SNAP-SCM-485-422: 2-wire mode Changing Basic Parameters You will need to have a PC with PAC Manager installed on the same Ethernet network as the I/O unit. All parameters listed above except the last two (flow control and 2- or 4-wire mode) can be changed in the I/O unit’ ...

Page 23

... When you have finished changing parameters for serial modules, click OK. Then click Close. 8. With the configuration file open, choose Tools Send Configuration to I/O Unit. The Send Configuration dialog box appears: SNAP SERIAL COMMUNICATION MODULE USER’S GUIDE SNAP Serial Communication Module User’s Guide ...

Page 24

... The configuration data is sent to the I/O units whose IP addresses you chose. Configuring Flow Control and 2- or 4-Wire Mode You can configure flow control on a SNAP-SCM-232 and 2- or 4-wire mode on a SNAP-SCM-485-422 using PAC Manager. However, these configurations cannot be saved to a configuration file. The I/O unit that contains the serial module must be on the same network as your PC, and the configuration is sent directly to the I/O unit ...

Page 25

... In the Device Name field, type in the name or IP address of the I/O unit, or choose it from the drop-down list. Click the Communications button and choose Serial Modules from the pop-up menu. Information from the I/O unit is displayed in the window: SNAP SERIAL COMMUNICATION MODULE USER’S GUIDE SNAP Serial Communication Module User’s Guide ...

Page 26

... To change a parameter, click its value in the Value column and choose from the drop-down list or enter a new value. NOTE: This is the only way to change hardware flow control for a SNAP-SCM-232 4-wire mode for a SNAP-SCM-485-422. You can also change other parameters in this dialog box if necessary. ...

Page 27

... In the PAC Manager main window, click the Open button or choose File Open. Navigate to the location of the configuration file and double-click the filename the configuration tree, right-click the name of the I/O unit the SNAP-SCM-PROFI module is on. From the pop-up menu, choose Configure. ...

Page 28

... NOTE: You can configure only IP Port Number, Baud Rate, Power-up Test Message?, and EOM Character List. The other parameters are not configurable. 7. When you have finished changing parameters for the SNAP-SCM-PROFI module, click OK. Configure another module or click Close. 8. With the configuration file open, choose Tools Send Configuration to I/O Unit. ...

Page 29

... The configuration data is sent to the I/O units whose IP addresses you chose. Configuring Wiegand Modules This section includes step-by-step instructions for telling a SNAP-SCM-W2 what bit pattern you are using to transmit site and badge code data. Sample Strategy If you are using the SNAP Wiegand module for card reader access fewer doors by 4200 or fewer users, you can download and use the sample control strategy and utility software available on our website at www ...

Page 30

... From the pop-up menu, choose Configure. The Configure I/O Units dialog box opens: 4. Make sure the correct I/O unit is highlighted. Click the Modules button and choose Wiegand Modules from the pop-up menu. SNAP Serial Communication Module User’s Guide Modules button ...

Page 31

... When all Wiegand modules are configured, click OK. Close the Configure I/O units dialog box. 11. In the main PAC Manager window, choose Tools Send Configuration to I/O Unit. The Send Configuration dialog box appears: SNAP SERIAL COMMUNICATION MODULE USER’S GUIDE step 5 for additional Wiegand modules. SNAP Serial Communication Module User’s Guide ...

Page 32

... SNMP trap, sending an email message, or turning bits on or off in the processor’s Scratch Pad. To configure events and reactions, see the chapter “Setting Up Events and Reactions” in the PAC Manager User’ s Guide, form #1704. SNAP Serial Communication Module User’s Guide ...

Page 33

... Loading New Firmware All SNAP Ethernet-based processors and SNAP serial communication modules contain firmware. Each device is shipped from the factory with the latest firmware installed. If you need to load new firmware, see Opto 22 form #1704, the PAC Manager User’ s Guide, for instructions. ...

Page 34

... PC application to a serial device is shown in the following diagram: With redirection, the direct serial connection is not necessary. Serial devices can talk through a SNAP serial communication module to the PC application over a local area network or over the Internet using TCP/IP, as shown in the diagram below: The third-party software driver you can use for redirection is a product of Tactical Software, LLC and is available from their website at www ...

Page 35

... Requirements • Opto 22 SNAP Ethernet-based processor NOTE: A wireless SNAP Ethernet brain can be used, but you may find that bandwidth and response times are not sufficient for your application. • Opto 22 SNAP-SCM-232 or SNAP-SCM-485-422 serial communication module(s SNAP rack attached to the processor ™ ...

Page 36

... USING THE SNAP-SCM-232 OR SNAP-SCM-485-422 AS A WINDOWS COM PORT Configuring SNAP Serial Modules Following directions in Parameters” on page • Set Baud, Parity, Data Bits, and Stop Bits as required by the serial device you are communicating with. • Set the EOM Char List to zeroes to allow data to pass through. ...

Page 37

... For each COM port, do the following: a. Click the COM port to highlight it the IP Address of Server field, enter the IP address of the SNAP Ethernet-based I/O unit this COM port will communicate with the Port Number field, enter the port number on the serial communication module where the device is connected (see the list of port numbers on d ...

Page 38

... USING THE SNAP-SCM-232 OR SNAP-SCM-485-422 AS A WINDOWS COM PORT 3. Click the Configuration Wizard button. Start button SNAP Serial Communication Module User’s Guide Configuration Wizard button ...

Page 39

... Messages similar to the following appear in the Status and Log areas of the wizard: The driver is ready to use. You can close the window, as the driver runs in the background. Consult the Serial/IP user’s guide for additional information and troubleshooting. SNAP SERIAL COMMUNICATION MODULE USER’S GUIDE SNAP Serial Communication Module User’s Guide ...

Page 40

... USING THE SNAP-SCM-232 OR SNAP-SCM-485-422 AS A WINDOWS COM PORT SNAP Serial Communication Module User’s Guide ...