SeaDAC Lite User Manual www.sealevel.com PO Box 830 – Liberty, SC 29657 864.843.
Table of Contents INTRODUCTION......................................................................................................................... 1 BEFORE YOU GET STARTED................................................................................................. 4 WHAT’S INCLUDED ...................................................................................................................... 4 OPTIONAL ITEMS.....................................................................................
Introduction SeaDAC Lite™ USB digital I/O modules provide a low I/O count solution in a small, rugged enclosure. Models are available with optically isolated inputs, Reed or Form C relay and TTL outputs. SeaDAC Lite modules are powered by the USB port, eliminating external power supplies. SeaDAC Lite modules integrate a SeaLATCH™ USB port that provides a secure metal-to-metal connection and prevents accidental cable disconnection. SeaLATCH connectors are fully compatible with standard USB cables.
This manual covers the installation & operation of these SeaDAC Lite modules: SeaDAC Lite DIO-8 SeaDAC Lite PLC-8 SeaDAC Lite ISO-4 SeaDAC Lite REL-4 SeaDAC Lite REL-4C SeaDAC Lite PIO-32 © Sealevel Systems, Inc.
Overview Sealevel SeaDAC Lite modules are available in various I/O configurations, each designed for maximum flexibility and easy field wiring. SeaDAC Lite modules offer system designers a compact, low-cost alternative for interfacing any USB equipped computer with real world signals. SeaDAC Lite modules are designed to work with third party applications via the Sealevel SeaMAX API.
Before You Get Started What’s Included All SeaDAC modules are shipped with the following items. If any of these items is missing or damaged please contact Sealevel for a replacement. SeaDAC Lite Digital Interface Adapter Item# CA356 – USB Type A to SeaLATCH Type B Cable, 6’ in Length Sealevel Software CD – SeaMAX Software and Documentation NOTE: SeaDAC Lite iPorthole and OEM modules do not include an internal USB cable.
Hardware Description SeaDAC Lite Configurations & Specifications 8111 – 4 Optically Isolated Inputs/4 Reed Relay Outputs SeaDAC Lite 8111 modules provide 4 optically isolated inputs and 4 Reed relay outputs. Inputs can range from 5-30VDC, while the Reed relays provide long life switch closures that are well suited for low current applications. Each Reed relay has a discrete common and each pair of inputs share a common. Status LEDs display I/O activity and field wiring is simplified via removable 3.
112 – 4 Optically Isolated Inputs/4 Form C Outputs The SeaDAC Lite 8112 provides 4 optically isolated inputs and 4 SPDT Form C relay outputs. Inputs can range from 5-30VDC and provide 300V isolation to ground, while the Form C relays switch up to 60VDC @ 5A or 250VAC @ 6A. Each Form C relay has a discrete common and includes normally-open and normally-closed contact connections. Each pair of inputs shares a common. Status LEDs display I/O activity and field wiring is simplified via 3.
8113 – 4 Optically Isolated Inputs SeaDAC Lite 8113 modules provide 4 optically isolated inputs with 300V external isolation and high channel-to-channel isolation. Ideal for low voltage monitoring applications, inputs can range from 5-30VDC. Status LEDs display I/O activity and connection to real world signals is made via 3.5mm field removable screw terminal connectors. 8113-KT iPorthole 8113-OEM Inputs Type: Voltage Range: Isolation: Input Resistance: Response Time: © Sealevel Systems, Inc.
8114 – 4 Reed Relay Outputs The SeaDAC Lite 8114 provides 4 SPST Form A dry-contact Reed relays. Reed relays offer long life performance, fast response time, and are well suited to low current devices. Each relay output has a discrete common. Status LEDs display I/O activity and field wiring is simplified via field removable 3.5mm screw terminal blocks compatible with 14-22 AWG wiring.
8115 – 4 Form C Relay Outputs Control and monitor a variety of devices with the SeaDAC Lite 8115. The module’s 4 channels of highly-reliable SPDT Form C relay outputs are rated for up to 60VDC @ 5A or 250VAC @ 6A. Each Form C relay has a discrete common and includes normally-open and normally-closed contact connections. Status LEDs display I/O activity and field wiring is simplified via 3.5mm field removable terminal blocks.
8126 – 32 Channel TTL The SeaDAC Lite 8126 provides 32 channels of buffered drive digital I/O. The module addresses the 32 channels of I/O as four eight-bit ports, each programmable as input or output. Use a standard 50-pin IDC ribbon cable to connect an industry standard relay rack for PC based control and automation of equipment including sensors, switches, security control systems, and other industrial automation systems. A status LED lights when the 8126 is successfully communicating with a USB port.
8126 – Optional Items Depending upon your application, you are likely to find one or more of the following items useful for interfacing the 8126 to real-world signals. All items can be purchased from our website (http://www.sealevel.com) or by calling 864-843-4343. For TTL applications: Terminal Block Kit (Item# KT107) − Kit includes the TB07 screw terminal block and CA167 ribbon cable for connecting the 8126’s 50-pin header connector to your I/O.
For high-current, high-voltage applications: IDC 50 to IDC 50 Pin Ribbon Cable (Item# CA167) − 40” cable connects the 8126 to solid-state relay racks equipped with a 50pin header interface. IDC 50 to IDC 50 Pin Ribbon Cable (Item# CA135) − 40” cable connects the 8126 to solid-state relay racks equipped with a 50pin edge connector. Solid-State Relay Racks: • Quad six position relay rack (Item# PB24HQ) − Relay rack can accept up to six QSSRs for a total of 24 channels.
SeaDAC Lite Power Requirements Sealevel SeaDAC Lite modules are powered by the USB host interface and require 5VDC @ 500mA to be available on the USB port. Most computers and powered USB hubs are capable of meeting this requirement, while passive USB hubs and some laptops running on batteries may not. Check the product manual that shipped with your system or hub if you are uncertain. Sealevel technical support may also be able to help.
SeaLATCH™ USB SeaDAC Lite USB digital I/O modules integrate the patent-pending SeaLATCH USB port, which is fully compatible with standard USB cables. When used with the included USB cable (Item# CA356) with a SeaLATCH USB type B connector, the metal thumbscrew provides a secure connection to the device and prevents accidental cable disconnection. © Sealevel Systems, Inc.
SeaLATCH Locking USB Cables SeaLATCH USB Connectors SeaLATCH locking USB cables integrate a small thumbscrew into each USB connector. SeaLATCH USB cables are fully interchangeable with standard USB cables. The thumbscrew provides a secure metalto-metal connection preventing accidental disconnection. SeaLATCH USB cables are available in three configurations. Item# CA356 The CA356 is a 72” USB cable with a SeaLATCH type B connector and a standard USB type A connector.
SeaMAX Application Suite SeaMAX Overview The SeaMAX Suite is a collection of software libraries, and configuration and diagnostic utilities that facilitates rapid application development for SeaI/O, SeaDAC, and SeaDAC Lite modules.
Communicating Via Modbus Sealevel SeaI/O and SeaDAC modules are designed to integrate seamlessly into existing Modbus networks. The supported command set will vary depending on the SeaI/O model number used. Specialized diagnostic commands and other RTU specific codes are not supported. An overview of the Modbus specification for both RTU and TCP connections is covered in detail in the interactive documentation located on the Sealevel website at: http://www.sealevel.
SeaMAX Software Installation Proceed with installing the SeaMAX Software Suite using the software CD that was included with your Sealevel I/O module. Software drivers are also available on the product webpage on the Sealevel website at www.sealevel.com. Windows 2000/XP/Vista™ Operating Systems Do not connect the I/O module to the host until the software is installed. 1. Start Windows. 2. Insert the Sealevel Software CD in to your CD drive. 3.
MaxSSD Configuration & Diagnostics Utility The Sealevel Systems configuration utility, MaxSSD, is designed to simplify the installation, configuration, and diagnostics of Sealevel I/O modules. MaxSSD is a Microsoft Windows application and has been tested with Windows 2000, XP, and Vista. Host PC Configuration Tab The first time you run the MaxSSD utility (Start Æ All Programs Æ Sealevel SeaMAX Æ MaxSSD) it will default to the “Host PC Configuration” tab.
Host PC Configuration Tab (cont.) To communicate with a SeaDAC Lite module, select “SeaDAC Lite” from the “COM Port” dropdown box. MAXSSD will search for any SeaDAC Lite modules connected to a USB port and display them in a frame (as shown below). A new “Digital I/O” tab will appear. If more than one SeaDAC Lite module is connected, select the one you want to test from the list and click the “Digital I/O tab”. You can use this new tab to test the functionality of inputs and relay outputs.
SeaI/O Configuration Tab Once the host computer is configured correctly, the “SeaI/O Configuration” tab becomes available. This tab only appears for SeaI/O and SeaDAC modules and will not appear when using SeaDAC Lite modules. Before communicating with a SeaI/O or SeaDAC module, the configuration utility must determine if there is an I/O module at that slave ID address, and if so, what type of module it is. This is the purpose of the Get operation.
SeaI/O Configuration Tab (cont.) After the Get command is executed, the “Module Description” frame will display the model type, description, interface, and I/O type. In the example shown, the module found at slave ID 247 is a SeaI/O-410 module with an Ethernet (Modbus TCP) interface. The “Set Settings” and “Change Slave ID” buttons will also be enabled for this module. After a successful Get operation, additional tabs may be displayed in MaxSSD, depending on the found device model.
SeaI/O Configuration Tab (cont.) The “Broadcast to Multiple Modules” checkbox, along with the “Set Settings” button can be used to change the baud rate and parity on multiple SeaI/O modules at once. This function only works with SeaI/O modules connected together via the passthrough connectors. This function is disabled with SeaDAC and SeaDAC Lite modules since these devices do not have pass-through connectors.
Digital I/O Tab The “Digital IO” tab of MaxSSD is displayed when using Sealevel I/O devices featuring discrete inputs and outputs. It displays the device’s current input and/or output status in an intuitive and usable manner. When displaying SeaI/O or SeaDAC modules (excluding SeaDAC Lite), the “Digital IO” tab displays inputs and outputs in groupings (or banks) of eight. Therefore, a Sealevel I/O device with 16 inputs and 8 outputs would show two banks of inputs and one bank of outputs.
Digital I/O Tab (cont.) When displaying SeaDAC Lite modules, the “Digital IO” tab displays inputs and outputs in groupings (or banks) of four. Therefore, a SeaDAC Lite module with four inputs and four outputs would show only one bank of inputs and one bank of outputs. When banks of inputs are displayed, the status LEDs update on each of the banks automatically. This allows you to actively monitor external signals. With a bank of outputs, the output coils can be set using the buttons below each output LED.
Programmable I/O Tab The “Programmable IO” tab of MaxSSD is displayed when using Sealevel I/O devices featuring programmable inputs or outputs. This tab allows for bank configuration, input/output configuration, as well as bit-level presets. Each bank of programmable I/O can be set as either an 8-bit group of inputs or outputs.
A/D Inputs Tab The “A/D Inputs” tab displays the current state of the analog-to-digital channels for Sealevel I/O devices that feature A/D inputs. Settings are provided for both device wide and per-channel configuration. The “Device Configuration” selection drop-box adjusts the arrangement and function of the A/D input channels. Input channels are displayed as banks (groups of eight). Each channel is range configurable via the voltage range dropdown list.
D/A Outputs Tab The “D/A Outputs” tab is useful for manually setting the digital to analog output voltages on applicable Sealevel I/O devices with D/A channels. A preliminary diagnostics utility (see following page) has been provided to verify proper hardware functionality. The D/A outputs of the SeaI/O-470 and SeaDAC 8227 are factory set for 0-10V. To configure the D/A outputs for 0-5V, you will need to open the enclosure and set the correct jumpers.
A/D & D/A Diagnostics To check basic functionality of both the A/D and D/A converters, press the “Diagnostics Utility” button on the “D/A Outputs” tab (shown on the previous page) and then press the “Start” button, as shown below. Any errors will be shown in the “Results” pane. If any errors occur, please contact technical support for further help.
Troubleshooting SeaMAX Following these simple steps can eliminate most common problems. 1. Read this manual thoroughly before attempting to install the device in your system. 2. Uninstall any previous versions of the SeaMAX software before installing any new versions. 3. Install SeaMAX software first, before connecting any Sealevel I/O devices. Installing the software places the necessary files in the proper locations on your system. After installing the software, proceed with adding the hardware. 4.
Troubleshooting Ethernet (E-series) SeaI/O Modules Problem: The SeaI/O module starts up with a strange IP address (i.e., 169.254.x.x) All Ethernet SeaI/O (E-series) modules are shipped with DHCP enabled. If no DHCP server is available or the DHCP server cannot be reached, the Ethernet SeaI/O module will default to a random IP address in the range 169.254.0.1 to 169.254.255.254. Change the PC’s network settings to place both the SeaI/O module and PC on the same subnet.
Wiring Options I/O Wiring – SeaDAC Lite 8111 - 8115 Modules Depending on model, you can control and monitor up to 4 optically isolated inputs and 4 Reed or Form C relay outputs. Each Reed or Form C relay has a discrete common (ground) and each pair of inputs share a common. Reed relays can switch up to 60VDC @ 500mA, while Form C relays can switch up to 60VDC @ 5A or 250VAC @ 6A.
I/O Wiring – SeaDAC Lite 8126 TTL Module The 8126 addresses the 32 channels of buffered drive digital I/O as four eight-bit ports, each programmable as input or output. The I/O channels are accessed via an industry standard 50-pin header connector. Use a standard 50-pin IDC ribbon cable to connect an industry standard relay rack, terminal block (Item# TB07), or relay rack simulation module (Item# TA01). Each channel can sink up to 64mA or source up to 32mA.
8126 TTL Logic & Example Circuits The 8126 uses 74ABT245 octal bidirectional transceivers to provide TTL input/output capabilities. Each bit is pulled to +5V through a 10K Ω pull-up resistor to insure each bit is at a known state when not driven. The inputs use positive logic and are active true. If an input is driven high (2V to 5.25V) it will read as a logical one (1), and if driven low (0V to 0.8V) it will read as a logical zero (0).
Technical Specifications Dimensions SeaDAC Lite Modules L W H 4.3” 3.4” 1.3” 109mm 86mm 32mm iPorthole Modules L W H 3.2” 3.1” 0.8” 81mm 79mm 21mm L W H 2.9” 2.5” 0.8” 74mm 64mm 21mm OEM Modules Environmental Specifications Specification Temperature Range Humidity Range Operating 0°C – 70°C (32°F – 158°F) 10 to 90% R.H. Non-Condensing Storage -50°C – 105°C (-58°F – 221°F) 10 to 90% R.H.
Appendix A – How To Get Assistance When calling for technical assistance, please have your user manual and current device settings ready. If possible, please have the device installed and ready to run diagnostics. Sealevel Systems maintains a website on the Internet. Our homepage address is http://www.sealevel.com. The latest software updates and newest manuals are available via our FTP site that can be accessed from our home page.
Appendix B – CAD Drawings © Sealevel Systems, Inc.
Appendix C – Compliance Notices Federal Communications Commission Statement FCC - This equipment has been tested and found to comply with the limits for Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Warranty Sealevel's commitment to providing the best I/O solutions is reflected in the Lifetime Warranty that is standard on all Sealevel manufactured products. We are able to offer this warranty due to our control of manufacturing quality and the historically high reliability of our products in the field. Sealevel products are designed and manufactured at its Liberty, South Carolina facility, allowing direct control over product development, production, burn-in and testing. Sealevel Systems, Inc.
