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Infinite Innovation, the Future of Industrial Control Systems
Infinite Innovation, the Future of Industrial Control Systems
PRODUCT POSITION:HOMEPRODUCT—Fisher RS232
Fisher RS232
Typical Technical Parameters Parameter Specification Interface Type EIA/TIA-232 (Standard Serial RS-232) Connector Type Varies by device. Often a proprietary, weather-proof jack requiring a specific Fisher/Emerson cable (e.g., for connection to a Fisher 475 Field Communicator). Data Format Asynchronous, 8 data bits, No parity, 1 stop bit (8N1) is common. Baud Rate Device-specific, but commonly 9600 or 19200 baud. Communication Mode Full-Duplex, Point-to-Point. Communication Protocol Not a process protocol like HART. It uses a device-specific proprietary protocol (e.g., Fisher's own protocol for the FIELDVUE series) that is interpreted by dedicated configuration tools. Primary Use Local device configuration and diagnostics, not for real-time process control. Compatible Tools Fisher 475 Field Communicator, laptop with AMS Device Manager and a specific interface cable.
DESCRIBE
The Fisher RS232 interface is a serial communication port found on various Fisher digital field instruments, such as the FIELDVUE series valve positioners (e.g., DVC2000, DVC6000, DVC6200). It is primarily used for local configuration, calibration, and diagnostics of the device. Unlike the HART or Fieldbus protocols used for online process control, the RS232 interface requires a direct, point-to-point connection between the device and a configuration tool (like a handheld communicator or a laptop with specific software).
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