{"product_id":"yokogawa-f3rz91-0f-ladder-communication-module","title":"Yokogawa F3RZ91-0F Ladder Communication Module","description":"\u003cp\u003eConfigured for high-versatility serial data exchange in FA-M3 control networks, the \u003cstrong\u003eYokogawa F3RZ91-0F\u003c\/strong\u003e (\u003cstrong\u003eF3RZ91-0F\u003c\/strong\u003e Ladder Communication Module) provides direct electrical execution for asynchronous serial communication between the programmable controller and external field devices.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eF3RZ91-0F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.5 kg \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e28.9 mm (W) x 100 mm (H) x 83.2 mm (D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eRS-232-C, RS-422, RS-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Mode\u003c\/td\u003e\n\u003ctd\u003eFull\/Half-duplex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComm Speed\u003c\/td\u003e\n\u003ctd\u003e300 to 115,200 bps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuffer Capacity\u003c\/td\u003e\n\u003ctd\u003e1792 bytes (Send) \/ 8192 bytes (Receive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eYokogawa PLC Serial Integration\u003c\/h3\u003e\n\u003cp\u003eThe F3RZ91-0F is designed to bridge the FA-M3 controller with peripheral instrumentation, including industrial PCs, human-machine interfaces (HMIs), and varied serial-based I\/O devices. The module utilizes start-stop synchronization to manage asynchronous data flow, ensuring data integrity over standard serial interfaces. The high-capacity rotary FIFO receive buffer (8192 bytes) is engineered to prevent data loss during high-speed polling or burst transmissions, allowing the CPU to process serial data strings effectively without compromising scan cycle timing.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can this module support multidrop RS-485 configurations?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The F3RZ91-0F supports RS-485, making it suitable for multi-point communication networks where the controller acts as the primary node for multiple remote serial devices.\u003c\/p\u003e\n\u003cp\u003eQ: Is the interface switchable between RS-232, RS-422, and RS-485?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module provides flexible interface options to suit the physical layer requirements of various industrial field devices. Users must configure the hardware settings and communication parameters via ladder logic or the system software to match the target device.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eVerify that the cable pinout matches the target device specification (RS-232, RS-422, or RS-485) before initiating communication.\u003c\/li\u003e\n\u003cli\u003eEnsure that terminal resistors are installed for RS-422\/485 networks to eliminate signal reflections at the bus ends.\u003c\/li\u003e\n\u003cli\u003eKeep serial communication cables separated from power lines to avoid induced electrical noise that could lead to cyclic redundancy check (CRC) errors.\u003c\/li\u003e\n\u003cli\u003eSecure the module firmly into the FA-M3 rack to ensure stable electrical contact with the backplane.\u003c\/li\u003e\n\u003cli\u003eUtilize the LED indicators on the module front panel to monitor TX and RX activity during commissioning to verify data throughput.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49243502805244,"sku":"F3RZ91-0F","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/F3RZ91-0F.jpg?v=1782956031","url":"https:\/\/www.electronicplc.com\/ar\/products\/yokogawa-f3rz91-0f-ladder-communication-module","provider":"Electronic PLC","version":"1.0","type":"link"}