™ DIO-32B USER’S MANUAL Part Number 3093 Sealevel Systems, Inc Phone: (864) 843-4343 155 Technology Place Fax: (864) 843-3067 P.O. Box 830 www.sealevel.com Liberty, SC 29657 Contents INTRODUCTION............................................................................................................1 OVERVIEW .................................................................................................... 1 WHAT’S INCLUDED ...................................................................................... 1 FACTORY DEFAULT SETTINGS ...................................................................... 1 CARD SETUP ................................................................................................................2 ADDRESS SELECTION .................................................................................... 2 IRQ HEADER E2.......................................................................................... 3 INSTALLATION.............................................................................................................4 SOFTWARE INSTALLATION........................................................................... 4 For Windows Users................................................................................ 4 TECHNICAL DESCRIPTION ...........................................................................................5 FEATURES .................................................................................................... 5 INPUT PORTS................................................................................................ 5 Sensor Input Ports Pin Assignments (P1)............................................ 7 OUTPUT PORTS (REED RELAY) .................................................................... 7 RELAY SPECIFICATIONS................................................................................ 7 Output Ports (Reed Relay) Pin Assignments (P2) .............................. 8 PROGRAMMING............................................................................................................9 APPLICATION PROGRAMMERS INTERFACE (API).......................................... 9 Interrupts................................................................................................. 9 Relative Addressing Vs. Absolute Addressing..................................... 9 DIRECT HARDWARE CONTROL...................................................................11 Reading the Inputs (direct) : ................................................................11 Reading the Outputs (relays) (direct) : ...............................................11 Writing the Outputs (relays) (direct) : ...............................................11 SPECIFICATIONS ........................................................................................................12 ENVIRONMENTAL SPECIFICATIONS.............................................................12 POWER CONSUMPTION...............................................................................12 MEAN TIME BETWEEN FAILURES (MTBF).................................................12 PHYSICAL DIMENSIONS..............................................................................12 APPENDIX A - TROUBLESHOOTING............................................................................13 APPENDIX B - HOW TO GET ASSISTANCE.................................................................14 APPENDIX C - SILK-SCREEN ......................................................................................15 APPENDIX D - SCHEMATIC.........................................................................................16 APPENDIX E - COMPLIANCE NOTICES .......................................................................18 FEDERAL COMMUNICATIONS COMMISSION STATEMENT ...........................18 EMC DIRECTIVE STATEMENT....................................................................18 WARRANTY................................................................................................................19 Figures Figure 1 - Address Selection Table ...........................................................................2 Figure 2 - DIP-Switch Illustration..............................................................................2 Figure 3 - IRQ Header E2.........................................................................................3 ©2002a Sealevel Systems, Incorporated. All rights reserved. Introduction Introduction Overview The DIO-32B provides 16 reed relays that can latch power, data or other electronic signals for control applications and 16 optically isolated inputs to allow monitoring of off board switch closures, relays or for any other general purpose monitoring needs. The DIO-32B is PC compatible and fits any full length ISA or EISA slot. Addressing, data and control signals are TTL compatible. The DIO-32B is simple to operate. By writing instruction bytes to the I/O port addresses, the reed relays are energized or de-energized. Inputs are just as simply read from their data ports. What’s Included The DIO-32B is shipped with the following items. If any of these items are missing or damaged, contact the supplier. · DIO-32B Interface Adapter · 37 Pin Ribbon Cable · Sealevel Software CD Factory Default Settings The DIO-32B factory default settings are as follows: Base Address IRQ 300 5 To install the DIO-32B using factory default settings, refer to Installation on page 4. For your reference, record installed DIO-32B settings below: Base Address IRQ Sealevel Systems DIO-32B Page 1 Card Setup Card Setup The DIO-32B contains several jumper straps for each port which must be set for proper operation. Address Selection The DIO-32B occupies 4 consecutive I/O locations. The DIP-switch (SW1) is used to set the base address for these locations. Be careful when selecting the base address as some selections conflict with existing PC ports. The following table shows several examples that usually do not cause a conflict. Address Binary Switch Settings 1 2 3 4 5 6 7 8 100-104 01 0000 00xx Off On On On On On On On 104-108 01 0000 01xx Off On On On On On On Off 200-204 10 0000 00xx On Off On On On On On On 280-283 10 1000 00xx Off On Off On On On On On 284-287 10 1000 01xx Off On Off On Off On On Off 2EC-2EF 10 1110 11xx Off On Off Off Off On Off Off 300-303 11 0000 00xx Off Off On On On On On On 320-323 11 0010 00xx Off Off On On Off On On On 388-38B 11 1000 10xx Off Off Off On On On Off On 3A0-3A3 11 1010 00xx Off Off Off On Off On On On 3A4-3A7 11 1010 01xx Off Off Off On Off On On Off Figure 1 - Address Selection Table The following illustration shows the correlation between the DIP-switch setting and the address bits used to determine the base address. In the example below, address 300 is selected as the base address. Address 300 in binary is XX 11 0000 00XX where X = a non-selectable address bit and address bit A9 is always a 1. A9 A2 ON OFF 1 2 3 4 5 6 7 8 Figure 2 - DIP-Switch Illustration Note: Setting the switch ‘On’ or ‘Closed’ corresponds to a ‘0’ in the address, while leaving it ‘Off’ or ‘Open’ corresponds to a ‘1’. Sealevel Systems DIO-32B Page 2 Card Setup IRQ Header E2 Interrupts can be generated by Port A, bit 0 going low if enabled at jumper location E2. Interrupt request signals 2/9 through 7 (IRQ 2/9 - 7) can be selected by placing the jumper in the appropriate position. Other inputs can be ‘wire OR ed.’ to also generate interrupts if desired. Please consult the factory for more information. E2 2/9 3 4 5 6 7 Figure 3 - IRQ Header E2 Sealevel Systems DIO-32B Page 3 Installation Installation The DIO-32B can be installed in any ISA PC expansion slot. The DIO-32B contains a DIP-switch (SW1) and IRQ selection which must be set prior to installation. 1. Turn off PC power. Disconnect the power cord. 2. Remove the PC case cover. 3. Locate an two available slots and remove the blank metal slot covers. 4. Gently insert the DIO-32B into the slot. Make sure the adapter is seated properly. Insert the cable bracket into the adjacent slot and screw in place. 5. Replace the cover. 6. Connect the power cord. Installation is complete. Software Installation For Windows Users Choose Install Software at the beginning of the CD and select the Digital I/O software drivers and install SeaIO. Sealevel Systems DIO-32B Page 4 Technical Description Technical Description The DIO-32B provides four parallel input/output (I/O) ports. The ports are organized as ports A, B, C, and D. Port A and B are input ports interfaced to optically-isolated inputs, while ports C and D are reed relay output ports. Assuming an I/O address of 300 Hex the following table shows the Port Addresses. Base Address Hex Decimal Mode Port A Address 300 768 Input Port (Opto Input) Port B Address 301 769 Input Port Port C Address 302 770 Output Port (Reed Relays) Port D Address 303 771 Output Port Features · Selectable I/O port addressing from 100H - 3FFH · 2 sets SPST relays with each set having 8 relays · 2 eight bit input ports · DB-37 male connector for relay outputs · DB-37 female connector for optically isolated inputs · Highly reliable 10 VA DIP reed relays utilized · 8 bit slot connector · Multiple adapters can reside in same computer · All address, data and control signals are TTL compatible Input Ports Ports A and B are 8 bit input ports connected to optically isolated input sensors. Each sensor can be used to interface a voltage input and then sense whether the voltage is on or off. Each sensor is isolated (with respect to a common ground) from every other sensor, and also isolated with respect to the host PC ground. This means that signals such as low-level AC line voltage, motor servo voltage, and control relay signals can be ‘sensed’, or read by the PC, without the risk of damage due to ground loops or ground faults. Each sensor input pair has a current limiting resistor which is used to limit the input current to the opto-isolator. The opto-isolator has two ‘back-to-back’ diodes internally. This allows AC or DC signals to be sensed, regardless of polarity. When the applied voltage is high enough to cause the led in the opto-isolator to turn-on, the output of the opto-isolator goes low (0 volts) and the signal is read as a low logic level (binary 0) by the PC. When the input signal is too low to turn on the opto-isolator, the output goes high and the port bit is read by the PC as a high logic level (binary 1). Sealevel Systems DIO-32B Page 5 Technical Description The input impedance of each isolated input is approximately 560 ohms (factory default). The opto-isolator requires approximately 3 mA to turn on. The maximum input current is 60 mA. Two things to consider when selecting the input resistor. The first is turn on voltage for the circuit to sense, and second is the maximum input voltage. Maximum input voltage must not provide too much power to the input resistor, and must also not overdrive the opto- isolator input current specification. The following formulas apply: Turn on current: 3 mA Isolator diode drop: 1.1 V Resistor power Max: .25 W Turn on Voltage = diode drop + (turn on current) x ( resistance) Or : 1.1 + (.003) x R Maximum voltage = square root of (.25 (resistor value)) The following table shows four common input resistors and the ranges associated with each . Input Resistor Min Turn-On Max Input Max Current (Ohms) (Volts) (Volts) (mA) 220 1.76 7 32 560 2.8 12 22 1K 4.1 16 16 2.2K 7.7 24 11 The maximum input voltage can be increased by increasing the input resistor accordingly. Because socketed DIP resistor networks are utilized, they can easily be replaced with a different value. This can be done at the factory, if necessary. The input circuits are not intended for monitoring 120 volt AC circuits. In addition to being too high a voltage for the circuits, it is dangerous to have that high a voltage on the card. Sealevel Systems DIO-32B Page 6 Technical Description Sensor Input Ports Pin Assignments (P1) Port A Bit P1 Port B Bit P1 0 18,37 0 10,29 1 17,36 1 9, 28 2 16,35 2 8,27 3 15,34 3 7,26 4 14,33 4 6,25 5 13,32 5 5,24 6 12,31 6 4,23 7 11,30 7 3,22 Ground 2,20,21 + 12 Volts 19 + 5 Volts 1 Output Ports (Reed Relay) Reed relays provide very high quality, long life, low current (10 Watt maximum), dry contact switch closures. Reed relays are not suited for high current applications, and can be destroyed by inductive load switching, where a spark occurs across the contacts internally. The relays are normally open, and close when energized. Each relay can be individually energized by writing a ‘1’ to the proper port bit. Relay Specifications · Contact Power Ratings: 10 Watts Maximum · Contact Voltage Maximum: 100 Volts DC or AC Maximum · Contact Current Maximum: .5 Amps DC or AC RMS · Contact Resistance, Initial: .15 Ohms · Rated Life: Low Load: 200 Million Closures Maximum Load: 100 Million Closures · Contact Speed: Operate: .5 m Sec Release: .5 m Sec Bounce: .5 m Sec · Maximum Operating Speed: 600 Hertz Sealevel Systems DIO-32B Page 7 Technical Description Output Ports (Reed Relay) Pin Assignments (P2) Port C Bit Relay P2 Pin Port D Bit Relay P2 Pin 0 K16 2,20 0 K8 10,28 1 K15 3,21 1 K7 11,29 2 K14 4,22 2 K6 12,30 3 K13 5,23 3 K5 13,31 4 K12 6,24 4 K4 14,32 5 K11 7,25 5 K3 15,33 6 K10 8,26 6 K2 16,34 7 K9 9,27 7 K1 17,35 Ground 18,36,37 + 5 Volts 19 + 12 Volts 1 Sealevel Systems DIO-32B Page 8 Technical Description Programming Application Programmers Interface (API) Most modern operating systems do not allow direct hardware access. The SeaIO driver and API have been included to provide control over the hardware in Windows and Linux environments. The purpose of this section of the manual is to help the customer with the mapping of the API to the actual inputs and relays for the 3093 specifically. Complete documentation of the API can be found in its accompanying help file. Interrupts Interrupt sampling can be set up in the API. Port A bit zero is the interrupt source. Refer to the API help file for more detailed information. Relative Addressing Vs. Absolute Addressing The SeaIO API makes a distinction between “absolute” and “relative” addressing modes. In absolute addressing mode, the Port argument to the API function acts as a simple byte offset from the base I/O address of the device. For instance, Port #0 refers to the I/O address base + 0; Port #1 refers to the I/O address base + 1. Relative addressing mode, on the other hand, refers to input and output ports in a logical fashion. With a Port argument of 0 and an API function meant to th output data, the first (0 ) output port on the device will be utilized. Likewise, with a Port argument of 0 and an API function designed to input data, the first th (0 ) input port of the device will be utilized. In all addressing modes, port numbers are zero-indexed; that is, the first port is port #0, the second port is #1, the third #2, and so on. Sealevel Systems DIO-32B Page 9 Technical Description Tables : API Port/bit reference numbers for Absolute and Relative Addressing R = Read W = Write R/W = Read or Write Port API Port # Absolute API Port # Relative Port Type Address (function) Address (function) A 0 ( R ) 0 ( R ) Input Port (Opto Input) B 1 ( R ) 1 ( R ) Input Port C 2 ( R/W ) 0 ( W ) Output Port (Reed Relays) D 3 ( R/W ) 1 ( W ) Output Port API Bit # Absolute API Bit # Relative Port Bit Address (function) Address (function) 0 ( R ) 0 ( R ) A0 - Input 1 ( R ) 1 ( R ) A1 - Input 2 ( R ) 2 ( R ) A2 - Input 3 ( R ) 3 ( R ) A3 - Input 4 ( R ) 4 ( R ) A4 - Input 5 ( R ) 5 ( R ) A5 - Input 6 ( R ) 6 ( R ) A6 - Input 7 ( R ) 7 ( R ) A7 - Input 8 ( R ) 8 ( R ) B0 - Input 9 ( R ) 9 ( R ) B1 - Input 10 ( R ) 10 ( R ) B2 - Input 11 ( R ) 11 ( R ) B3 - Input 12 ( R ) 12 ( R ) B4 - Input 13 ( R ) 13 ( R ) B5 - Input 14 ( R ) 14 ( R ) B6 - Input 15 ( R ) 15 ( R ) B7 - Input 16 ( R/W ) 0 ( W ) C0 - Output 17 ( R/W ) 1 ( W ) C1 - Output 18 ( R/W ) 2 ( W ) C2 - Output 19 ( R/W ) 3 ( W ) C3 - Output 20 ( R/W ) 4 ( W ) C4 - Output 21 ( R/W ) 5 ( W ) C5 - Output 22 ( R/W ) 6 ( W ) C6 - Output 23 ( R/W ) 7 ( W ) C7 - Output 24 ( R/W ) 8 ( W ) D0 - Output 25 ( R/W ) 9 ( W ) D1 - Output 26 ( R/W ) 10 ( W ) D2 - Output 27 ( R/W ) 11 ( W ) D3 - Output 28 ( R/W ) 12 ( W ) D4 - Output 29 ( R/W ) 13 ( W ) D5 - Output 30 ( R/W ) 14 ( W ) D6 - Output 31 ( R/W ) 15 ( W ) D7 - Output Sealevel Systems DIO-32B Page 10 Technical Description Direct Hardware Control In systems where the users program has direct access to the hardware (DOS) the table below gives the mapping and functions that the 3093 provide, a base address of 300 was used. If a different base address is used then the port addresses are calculated as shown in the table. Reading the Inputs (direct) : The inputs are active Low. If no voltage is applied across one of the differential inputs it returns a one on that bit. If an AC or DC voltage (of sufficient magnitude, covered above) is applied it returns a zero on that bit. Reading the Outputs (relays) (direct) : The relay ports return the ones complement of the value that is currently being used to drive the relays. When using the API the value is returned not the complement of the value. Writing the Outputs (relays) (direct) : The output ports are the only ports that can be written. The relays on a standard 3093 are normally open. To close a relay a one must be written to the appropriate bit. R = Read W = Write R/W = Read or Write Function Port Address Hex Address Port Type Available Decimal R A 300 (Base + 0) 768 Input Port (Opto Input) R B 301(Base + 1) 769 Input Port R/W C 302 (Base + 2) 770 Output Port (Reed Relays) R/W D 303 (Base + 3) 771 Output Port Sealevel Systems DIO-32B Page 11 Specifications Specifications Environmental Specifications Specification Operating Storage Temperature Range 0º to 50º C -20º to 70º C (32º to 122º F ) (-4º to 158º F) Humidity Range 10 to 90% R.H. 10 to 90% R.H. Non-Condensing Non-Condensing Power Consumption Supply line +12 VDC +5 VDC Rating 50 mA 800 mA Mean Time Between Failures (MTBF) Greater than 150,000 hours. (Calculated) Physical Dimensions Board length 9.75 inches (24.77 cm) Board Height including Goldfingers 4.2 inches (10.66 cm) Board Height excluding Goldfingers 3.9 inches (9.906 cm) Note: Please see Appendix D for board layout and dimensions. Sealevel Systems DIO-32B Page 12 Appendix A - Troubleshooting Appendix A - Troubleshooting 1. Identify all I/O adapters currently installed in your system. This includes your on-board serial ports, controller cards, sound cards etc. 2. Configure your Sealevel Systems adapter so that there is no conflict with currently installed adapters. No two adapters can occupy the same I/O address. 3. Make sure the Sealevel Systems adapter is securely installed in a motherboard slot. 4. The following are known I/O conflicts: · The 278 and 378 settings may conflict with your printer I/O adapter. · 3B0 cannot be used if a Monochrome adapter is installed. · 3F8-3FF is typically reserved for COM1: · 2F8-2FF is typically reserved for COM2: · 3E8-3EF is typically reserved for COM3: · 2E8-2EF is typically reserved for COM4: Sealevel Systems DIO-32B Page 13 Appendix B - How To Get Assistance Appendix B - How To Get Assistance Please refer to Appendix A - Troubleshooting prior to calling Technical Support. 1. Read this manual thoroughly before attempting to install the adapter in your system. 2. When calling for technical assistance, please have your user manual and current adapter settings. If possible, please have the adapter installed in a computer ready to run diagnostics. 3. Sealevel Systems maintains a forum on CompuServe which is accessed by typing ‘GO Sealevel’ at the command prompt. 4. Technical support is available Monday to Friday from 8:00 a.m. to 5:00 p.m. Eastern time. Technical support can be reached at (864) 843-4343. RETURN AUTHORIZATION MUST BE OBTAINED FROM SEALEVEL SYSTEMS BEFORE RETURNED MERCHANDISE WILL BE ACCEPTED. AUTHORIZATION CAN BE OBTAINED BY CALLING SEALEVEL SYSTEMS AND REQUESTING A RETURN MERCHANDISE AUTHORIZATION (RMA) NUMBER. Sealevel Systems DIO-32B Page 14 Appendix C - Silk-Screen Appendix C - Silk-Screen 4.2" 9.75" 3.9" Sealevel Systems DIO-32B Page 15 Appendix D - Schematic Appendix D - Schematic Sealevel Systems DIO-32B Page 16 Appendix D - Schematic Sealevel Systems DIO-32B Page 17 Appendix E - Compliance Notices Appendix E - 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. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in such case the user will be required to correct the interference at his own expense. EMC Directive Statement Products bearing the CE Label fulfill the requirements of the EMC directive (89/336/EEC) and of the low-voltage directive (73/23/EEC) issued by the European Commission. To obey these directives, the following European standards must be met: • EN55022 Class A - “Limits and methods of measurement of radio interference characteristics of information technology equipment” • EN55024-‘Information technology equipment Immunity characteristics Limits and methods of measurement.stry • EN60950 (IEC950) - “Safety of information technology equipment, including electrical business equipment” Warning This is a Class A Product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. Always use cabling provided with this product if possible. If no cable is provided or if an alternate cable is required, use high quality shielded cabling to maintain compliance with FCC/EMC directives. Sealevel Systems DIO-32B Page 18 Warranty Warranty Sealevel Systems, Inc. provides a lifetime warranty for this product. Should this product fail to be in good working order at any time during this period, Sealevel Systems will, at it's option, replace or repair it at no additional charge except as set forth in the following terms. This warranty does not apply to products damaged by misuse, modifications, accident or disaster. Sealevel Systems assumes no liability for any damages, lost profits, lost savings or any other incidental or consequential damage resulting from the use, misuse of, or inability to use this product. Sealevel Systems will not be liable for any claim made by any other related party. RETURN AUTHORIZATION MUST BE OBTAINED FROM SEALEVEL SYSTEMS BEFORE RETURNED MERCHANDISE WILL BE ACCEPTED. AUTHORIZATION CAN BE OBTAINED BY CALLING SEALEVEL SYSTEMS AND REQUESTING A RETURN MERCHANDISE AUTHORIZATION (RMA) NUMBER. Sealevel Systems, Incorporated 155 Technology Place P.O. Box 830 Liberty, SC 29657 USA (864) 843-4343 FAX: (864) 843-3067 www.sealevel.com email: support@sealevel.com Technical Support is available from 8 a.m. to 5 p.m. Eastern time. Monday - Friday Trademarks Sealevel Systems, Incorporated acknowledges that all trademarks referenced in this manual are the service mark, trademark, or registered trademark of the respective company. DIO-32B is a trademark of Sealevel Systems, Incorporated. Sealevel Systems DIO-32B Page 19