{"product_id":"allen-bradley-1785-l20e-ethernet-plc-5-programmable-controller","title":"Pengawal Boleh Atur Allen-Bradley 1785-L20E Ethernet PLC-5","description":"\u003cp\u003eThe \u003cstrong\u003e1785-L20E\u003c\/strong\u003e is an industrial-grade Ethernet PLC-5 programmable controller designed by Allen-Bradley for control and automation across specialized industrial environments. Operating as an open-type modular component within the 1771 I\/O architecture, this processor features 16 Kilowords of maximum user memory and an integrated battery-backed static RAM to preserve active program data. The module provides multi-protocol network communication interfaces, including an embedded RJ45 Ethernet port supporting high-speed data transmission, email client functionality, and integration with machinery supervisory networks. It functions effectively as a control system component to manage field inputs and outputs while reducing downtime in large-scale manufacturing and processing operations.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEquipped with 16 Kilowords of maximum user memory words and battery-backed static RAM for volatile memory preservation.\u003c\/li\u003e\n\u003cli\u003eSupport for dynamic or static network IP assignment via BOOTP, DHCP, or manual configuration.\u003c\/li\u003e\n\u003cli\u003eIntegrated email client functionality capable of transmitting standard SMTP protocol messages triggered by internal program instructions.\u003c\/li\u003e\n\u003cli\u003eConfigurable auto-negotiation settings supporting data transmission rates of 10\/100 Mbps in full-duplex or half-duplex operating modes.\u003c\/li\u003e\n\u003cli\u003eFeatures an embedded HTTP web server and Simple Network Management Protocol (SNMP) functions that can be enabled or disabled via configuration software.\u003c\/li\u003e\n\u003cli\u003eRemovable memory backup extension option utilizing 1785-ME16, -ME32, -ME64, or -M100 EEPROM modules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDistributed automated processing systems across oil and gas refinement utilities.\u003c\/li\u003e\n\u003cli\u003eHigh-speed assembly line sequence automation and production machinery.\u003c\/li\u003e\n\u003cli\u003eWater treatment plants and chemical processing multi-chassis control configurations.\u003c\/li\u003e\n\u003cli\u003ePower generation station subsystem handling and sequence-of-events reporting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical 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\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalog Number\u003c\/td\u003e\n\u003ctd\u003e1785-L20E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSeries F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eEthernet PLC-5 Programmable Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor\u003c\/td\u003e\n\u003ctd\u003ePLC-5\/20E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax User Memory Words\u003c\/td\u003e\n\u003ctd\u003e16 Kilowords\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery-Backed Static RAM\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEEPROM Program Backup Option\u003c\/td\u003e\n\u003ctd\u003eYes (using 1785-ME16, -ME32, -ME64, or -M100)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtected Memory\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Total I\/O\u003c\/td\u003e\n\u003ctd\u003e512 (any mix) or 512 in + 512 out (complementary)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Analog I\/O\u003c\/td\u003e\n\u003ctd\u003e512\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003eChannel 2 (RJ45 Ethernet), Channel 1A (DH+ \/ Programming), Channel 1B (Remote I\/O Scanner), Channel 0 (25-pin D-shell serial)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial Protocols Supported\u003c\/td\u003e\n\u003ctd\u003eASCII, DF1 full-duplex, DF1 half-duplex master, DF1 half-duplex slave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackup Battery Type\u003c\/td\u003e\n\u003ctd\u003e1770-XYC Lithium Battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eOpen type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Altitude\u003c\/td\u003e\n\u003ctd\u003eUp to 2000 meters (without derating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePollution Degree\u003c\/td\u003e\n\u003ctd\u003ePollution Degree 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOvervoltage Category\u003c\/td\u003e\n\u003ctd\u003eCategory II\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003ePort \/ Indicator\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction \/ Description\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel 2 RJ45 Connector\u003c\/td\u003e\n\u003ctd\u003e10\/100 Mbps Ethernet network connection interface port.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel 1A Port\u003c\/td\u003e\n\u003ctd\u003eDefault configuration is Data Highway Plus (DH+) communication link.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8-pin Mini-DIN Port\u003c\/td\u003e\n\u003ctd\u003eDH+ programming terminal connection, routed parallel to Channel 1A.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel 1B Port\u003c\/td\u003e\n\u003ctd\u003eDefault configuration is Remote I\/O Scanner connection link.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel 0 Port\u003c\/td\u003e\n\u003ctd\u003e25-pin D-shell serial port supporting RS-232C, RS-423, and RS-422A physical layers.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100M \/ 10M LEDs\u003c\/td\u003e\n\u003ctd\u003eEthernet transmit speed indicators (Green when actively communicating).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBATT LED\u003c\/td\u003e\n\u003ctd\u003eBattery status indicator (Lights Red when internal battery voltage drops low).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRUN \/ FAULT LED\u003c\/td\u003e\n\u003ctd\u003eController processor status indicator (Green when running; Red when faulted).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFORC LED\u003c\/td\u003e\n\u003ctd\u003eForce indicator (Amber when I\/O forces are actively enabled in software).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAlways mount the module within a protective enclosure that requires a dedicated tool for access, ensuring the local atmosphere meets Pollution Degree 2 conditions.\u003c\/li\u003e\n\u003cli\u003eSet the unique DH+ Station Address for Channel 1A using the rear-panel switch assembly SW-1 before inserting the unit into the chassis slot.\u003c\/li\u003e\n\u003cli\u003ePrevent internal hardware damage from electrostatic discharge by wearing an approved grounding wrist strap and avoiding physical contact with connection pins or circuit components.\u003c\/li\u003e\n\u003cli\u003eLimit adjacent slot thermal loading by confirming that adjacent hardware slot power dissipation remains below a maximum limit of 10 W.\u003c\/li\u003e\n\u003cli\u003eIsolate communication lines from high-voltage cables, routing signal wiring through dedicated instrument trays to minimize the risk of electromagnetic noise coupling.\u003c\/li\u003e\n\u003cli\u003eIf changing the operational settings for the embedded HTTP web server or SNMP client while online, a complete system power cycle must be performed for adjustments to take effect.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIEC\/CISPR Publication 11 (Group 1, Class A Industrial Equipment) \u003c\/li\u003e\n\u003cli\u003eClass I Division 2 Groups A, B, C, D Hazardous Locations (North American Hazardous Location Approval) \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695190176107,"sku":"1785-L20E","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1785-l20e-cpu-modle-xrzohbdchrr_5a5306c7-59a0-400e-b388-18e65d586ab4.jpg?v=1766114601","url":"https:\/\/www.plcprotech.com\/ms\/products\/allen-bradley-1785-l20e-ethernet-plc-5-programmable-controller","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}