Help with Specialty Process Controllers specifications:
Input / Control Channels
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| Number of Inputs | The number of inputs is the total number of signals sent to the controller. This number includes process variable signals such as temperature, pressure, level, speed, etc., and status inputs such as on/off. | ||
| Search Logic: | All matching products will have a value greater than or equal to the specified value. | ||
| Number of Control Outputs | The number of control outputs is the total number of outputs used to control, compensate or correct the process. This number includes analog control outputs as well as relays and switches which activate or deactivate control devices. | ||
| Search Logic: | All matching products will have a value greater than or equal to the specified value. | ||
| Number of Zones (if applicable) | The number of zones which the controller can monitor and maintain. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
| Controller Inputs: | |||
| Your choices are... | |||
| DC Voltage Input | Controllers accept analog DC voltage inputs such as ±5 V, 0 -10 V, etc. | ||
| Current Loop (Transmitter) Input | Current loop (transmitter) inputs include analog inputs such as 4 - 20 mA and 0 - 50 mA, or any other current-loop signal from a transmitter. | ||
| Resistive / Potentiometer Input | Controllers accept analog inputs from a resistor or potentiometer which monitors the process variable(s). | ||
| Frequency Input | A pulse or frequency input is used to measure and indicate a process variable for feedback to the controller. | ||
| Switch / Relay Input | Controllers accept a discrete, on/off voltage signal from a sensor or switch which monitors the process. | ||
| Serial / Digital Input | Controller inputs include signals in serial, parallel, Ethernet or other digital formats which indicate a process variable. This includes process measurement, but not communication lines. | ||
| Network / Fieldbus Input | Controllers accept commands and inputs from information converted to an industrial fieldbus protocol such as CANbus, PROFIBUS®, or SERCOS, or other industrial automation protocol. PROFIBUS is a registered trademark of PROFIBUS International. | ||
| Other | Other unlisted, specialized, or proprietary input signals. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| Control Signal Output: | |||
| Your choices are... | |||
| Analog Voltage | Controllers produce analog DC voltage outputs such as ±5 V, 0 - 10 V, etc. | ||
| Current Loop | Controllers produce a current loop output such as 0 - 20mA, 4 -20 mA, 10 - 50mA, etc. | ||
| Switch / Relay Output | The output is a switch or relay that can be "on" or "off". | ||
| Pulse / Frequency | The control output is an analog frequency value, a pulse train, or a similar variable. | ||
| Serial / Digital | Controller outputs include signals in serial, parallel, Ethernet or other digital formats which indicate a process variable. This includes process measurement, but not communication lines. | ||
| Network / Fieldbus Output | Controllers output information using an industrial fieldbus protocol such as CANbus, PROFIBUS®, SERCOS, or other industrial automation protocol. PROFIBUS is a registered trademark of PROFIBUS International. | ||
| Other | Other unlisted, specialized, or proprietary control signals. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
User Interface
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| Form Factor | |||
| Your choices are... | |||
| Circuit Board | Devices are printed circuit boards (PCB) that can be attached to an enclosure or plugged directly into a computer backplane. | ||
| Panel / Chassis Mount | Devices attach to a panel or bolt onto a chassis, wall, cabinet, or enclosure. | ||
| Rack Mount | Devices mount in racks and come with hardware such as rail guides, flanges, or tabs. Some rack-mounted devices fit in a standard 19” telecommunications rack. | ||
| DIN Rail | Devices mount on a standard DIN rail. DIN is an acronym for Deutsches Institut für Normung (DIN), a German national organization for standardization. | ||
| Stand-Alone | Devices are benchtop or floor-standing units with a full casing or cabinet and an integral interface. | ||
| Other | Other unlisted form factors. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| User Interface | |||
| Your choices are... | |||
| Knobs / Switches / Meter | Adjustments are made with DIP switches, knobs, jumpers, and/or other simple settings. | ||
| Digital Front Panel | Devices are set up or programmed via a digital front panel with a keypad and displays, menus, and similar display functions. | ||
| Computer Programmable | Devices can be programmed and/or controlled remotely with a computer. | ||
| Ethernet / Networkable | Devices are designed to be part of a network, connected to other computers for the purposes of monitoring or control. | ||
| Web Enabled | Devices use hardware and software protocols such as hypertext transfer protocol (http) or web access protocol (WAP) in order to be addressable to, or a node of, the World Wide Web for remote monitoring or communication. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
Specific Functionality
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| General | |||
| Your choices are... | |||
| Rate Indication / Control | Devices monitor, indicate, and/or control the rate of the material or media. | ||
| Totalizer | Devices totalize the amount of material, media, or process variable. | ||
| Datalogger | Devices log systems or process variables and/or control commands for subsequent viewing or analysis. | ||
| Chart Recorder | Devices have chart recorder capabilities. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
Standards and Compliance
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| Your choices are... | |||
| RoHS Compliant | Restriction of Hazardous Substances (RoHS) is a European Union (EU) directive that requires all manufacturers of electronic and electrical equipment sold in Europe to demonstrate that their products contain only minimal levels of the following hazardous substances: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl, and polybrominated diphenyl ether. RoHS will become effective on July 1, 2006. | ||
| WEEE Compliant | The Waste Electrical and Electronics Equipment Regulations (WEEE Regulations) is a European Parliament Directive with the aim of encouraging reuse, recycling and recovery of electrical and electronic equipment, and to improve the environmental impact and performance of these equipments. This directive sets the requirements and criteria for the collection, treatment, recycling and recovery of these equipments. It makes producers responsible for financing these activities, and retailers and distributors must provide means for consumers to return used or obsolete equipments without charge. | ||
| Other | Other unlisted standards and compliances. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||