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Basic I/O Product Family NOTICE: This document contains two separate users manuals. The first section should be used for the BIO4, BIO8, and BIO16 products. The second section should be used for the BIO4AD, BIO8AD, and the BIO16AD products. If you find that you have any questions with the setup or installation of any duTec product please feel free to call us: Phone: 800-248-1632 or E-mail: info@dutec.net
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Vol.1 Table of Contents The Basic I/O ........................................................... 1 - 1 ANALOG INPUTS .............................................. 1 - 2 DIGITAL INPUTS ............................................... 1 - 4 DIGITAL OUTPUTS: ............................................ 1 - 5 SYSTEM THROUGHPUT ........................................ 1 - 6 COMMUNICATION PROTOCOL ...............................
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Vol. 1 Table of Contents Communication verification ............................................... 2 - 18 Hardware error codes .................................................... 2 - 19 Hardware watchdog ..................................................... 2 - 19 Sensor/ Actuator I/O wiring ............................................... 2 - 19 Analog Inputs: ................................................. 2 - 20 Analo
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The Basic I/O 1 THE BASIC I/O: BASIC I/Os are a family of small, industrial grade, remote data acquisition and control systems which exchange data with a Host computer via a serial communications link. Controlled by a wide range of software running on a Host computer, Basic I/Os are located near the sensors and actuators. The serial link eliminates the need for expensive and noise prone signal wiring between field sensors and actuators, and a central control room. Each BASIC I/O system consist
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The Basic I/O 1 A notable feature of the BASIC I/O is its ability to gather data and perform ranging and statistical operations on raw data before it is sent to the Host. The Host can thus spend less time manipulating data and more time gathering it. The following sections discuss the different signals the BASIC I/O can handle. ANALOG INPUTS: duTec analog input modules are 100% isolated and accept a wide range of voltages, currents, the outputs of thermocouples, RTDs, and 590 type temperature
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The Basic I/O 1 ANALOG OUTPUTS: Analog output modules are 100% isolated. These self-sourcing modules provide the voltage or current necessary to drive standard instrumentation loads. All are updated every 10 Ms, or 100 times per second. Analog output instruction types are: Level Value Can set output levels, as a fraction of the module’s full scale range, and are specified with 12 bit (1 part in 4096) resolution. Waveforms Can provide square, triangle, sawtooth or ramp waveforms, Maximum and Mi
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The Basic I/O 1 DIGITAL INPUTS: Digital input modules detect the presence or absence of a field signal. Module types vary from AC to dry contact sense. Because the industry standard modules are optically isolated, the response time performance of digital input instructions can be limited by the delay in the input modules themselves. Some modules can have rise and fall times of up to 40 milliseconds. Digital input instruction types are: Read Read the On or Off state of all inputs. This data is
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The Basic I/O 1 DIGITAL OUTPUTS: Digital output modules, commonly referred to as solid state relays, control external AC or DC power sources. A dry-contact (mechanical relay) with very low contact resistance is also available. Digital output instruction types are: Set outputs Can set individual or multiple outputs On or Off. Pulse Generator Can generate 1 to 65,535, 50% duty cycle pulses whose equal On and Off periods can range from 0.01 to 2.55 seconds. Resolution can be reduced by a factor o
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The Basic I/O 1 SYSTEM THROUGHPUT: Input data throughput is the time from beginning of the first character of an input instruction to the end of the last character of the response. The processing time of the Host computer will affect the effective throughput. Output Execution throughput is the time from the beginning of the first character of an instruction until the actual output changes. Because the instruction acknowledgment occurs before the outputs actually change state, the processing t
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The Basic I/O 1 It should be noted that the values in the preceding throughput tables and the following equations reflect only the communications overhead and inherent processing delay of the BASIC I/O equipment. In practice, a significant amount of overhead will be devoted to other processing tasks such as screen updates, Data logging, etc... Typically these other tasks become the limiting factor in the “overall” throughput. The equations below can be used for determining the hardware’s role
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The Basic I/O 1 COMMUNICATION PROTOCOL: The BASIC I/O Communication Protocol is 100% compatible with the Opto-22 Optomux™ protocol. This ASCII printable serial protocol uses a “speak-only-when-spoken-to” format where only the host can initiate an information exchange. Each BASIC I/O unit installed in a network has a unique address. This address is embedded in the instruction generated by the host computer. Every BASIC I/O chassis receives the instruction but only the unit which is set to the a
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The Basic I/O 1 Available I/O Modules ANALOG INPUTS, 12 BIT ANALOG OUTPUTS, 12 BIT Frequency Voltage IIF10K-B Input 300Hz -10KHz OV1 Output 0-1V, self-sourcing IF2.5K-L Input 0-2.5KHz OV5 Output 0-5V, self-sourcing IF5K-l Input 0-5KHz OV10 Output 0-10V, self-sourcing IF10K-L Input 0-10KHz Voltage Current IV25M Input 0-25mV OI420 Output 4-20mA, self-sourcing To 275 Ohm load. IV50M Input 0-50mV IV100M Input 0-100mV IV1 Input 0-1V DIGITAL INPUTS IV5 Input 0-5V AC IV5B Input Bipolar +/-5V IAC5 Inp
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The Basic I/O 1 DIAGNOSTICS: To confirm internal operations and communications link integrity, a set of built-in diagnostics test key system functions each time power is applied. Diagnostics reduce both installation debugging and operation troubleshooting. A hardware watchdog timer insures safe shutdown in the event of processor or software failures by turning all outputs OFF. Normally ON modules are available for those loads that must remain ON. PHYSICAL CHARACTERISTICS Power Requirements Vol
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The Basic I/O 1 PRODUCT TEST Every BASIC I/O is burned-in at 70 °C while operating in a network for a period of 24 hours prior to shipment. Every analog I/O module is operated and tested while it’s ambient operating temperature is cycled over the specified operating range of 0°C to 60°C for a period of 24 hours. BASIC I/O Models: BIO4 4 Position BASIC I/O Unit Includes SLB Logic Board and SMB4 Module board less modules and power supply. BIO8 8 Position BASIC I/O Unit Includes SLB Logic board
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The Basic I/O 1 NOTES 1-12(Vol.1)
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Setup & Installation 2 MOUNTING: BASIC I/Os come in 4, 8, and 16 channel versions. Figure 2-1 below shows the footprint of each BASIC I/O. Using corner holes, the unit can be mounted with 4- #6 or #8 round head or pan head screws. The BIO16 version has two additional mounting holes located near the center of the board as well. Hole locations in relation to the overall dimensions for each are shown below. Since the same BASIC I/O boards are used for digital or analog applications, the same mounti
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Setup & Installation 2 POWER WIRING: Power connections are made at the 2 position terminal block located on the module board marked +5V and GND No. 8 captive wire clamps accept 10-16 AWG wire or spade lugs. +5V GND Power wiring conventions: + of the power source to the +5V terminal - of the power source to the terminal marked GND Power requirements Voltage: 5.0- 5.4Vdc Current: 250 mA + 25mA per digital module or 250 + 200mA per analog module. Note that the current draw of some spec
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Setup & Installation 2 COMMUNICATING WITH THE BASIC I/O: The BASIC I/O is designed to serve as an intelligent I/O front end for a Host computer (Typically a P.C.). The host and BASIC I/O communicate over a serial link. This interchange is half-duplex in nature; that is to say the host and BASIC I/O will never be transmitting at the exact same time. Further, the communications protocol is considered “speak-only-when- spoken-to”; the Host must poll the BASIC I/O whenever it needs fresh data. This
