{"product_id":"allen-bradley-1785-l30b-plc-5-standard-processor-module","title":"Allen-Bradley 1785-L30B PLC-5 Standard Processor Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1785-L30B\u003c\/strong\u003e is a \u003cstrong\u003ePLC-5 standard processor module\u003c\/strong\u003e configured for centralized control and distributed industrial automation systems. This \u003cstrong\u003eprogrammable logic controller\u003c\/strong\u003e features 32 Kilowords of battery-backed static RAM user memory to maintain logic data, registers, and control configuration during power loss conditions. The hardware incorporates multiple embedded communication interfaces, including two DH+\/Remote I\/O combination channels that function as either a scanner or an adapter, alongside a dedicated 25-pin serial port supporting RS-232C, RS-423, and RS-422A protocols. Capable of managing up to 1024 total I\/O devices in any mix, or a complementary configuration of 1024 inputs and 1024 outputs, this processor interfaces directly with discrete and analog control components across diverse factory automation architectures.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBattery-backed static RAM configuration ensures user memory data protection when primary control power is disconnected.\u003c\/li\u003e\n\u003cli\u003eEEPROM non-volatile program backup option utilizing 1785-ME16, 1785-ME32, 1785-ME64, or 1785-M100 memory modules.\u003c\/li\u003e\n\u003cli\u003eFront-panel three-position keyswitch for manual selection of Run, PROG (Program), and REM (Remote) processor operating modes.\u003c\/li\u003e\n\u003cli\u003eDedicated diagnostic LED visual indicators for BATT (Battery status), PROC (Processor state), FORCE (I\/O forces enabled), COMM (Channel 0 activity), and individual channel status.\u003c\/li\u003e\n\u003cli\u003eEmbedded Control Coprocessor Expansion Port to accommodate advanced system processing enhancements.\u003c\/li\u003e\n\u003cli\u003eIntegrated support for universal remote I\/O architectures to link up to 28 remote I\/O chassis.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDistributed assembly and high-speed discrete production lines.\u003c\/li\u003e\n\u003cli\u003eLarge-scale SCADA monitoring and multi-node plant networking.\u003c\/li\u003e\n\u003cli\u003eAnalog process automation including temperature, pressure, and flow loops.\u003c\/li\u003e\n\u003cli\u003eCentralized machinery control requiring high-density discrete and specialty I\/O integration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eProduct Code\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1785-L30B Ser A\u003c\/td\u003e\n\u003ctd\u003e1785-L30B\/A, Series A, Rev A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1785-L30B Ser B\u003c\/td\u003e\n\u003ctd\u003e1785-L30B\/B, Series B, Rev B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1785-L30B Ser C\u003c\/td\u003e\n\u003ctd\u003e1785-L30B\/C, Series C, Rev C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1785-L30B Ser D\u003c\/td\u003e\n\u003ctd\u003e1785-L30B\/D, Series D, Rev D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1785-L30B Ser E\u003c\/td\u003e\n\u003ctd\u003e1785-L30B\/E, Series E, Rev E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003eTechnical Specification\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eProgrammable Logic Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003ePLC-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1785-L30B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e612598123995\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.75 lbs (1.25 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor Model\u003c\/td\u003e\n\u003ctd\u003ePLC-5\/30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eStandard Processor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax User Memory Words\u003c\/td\u003e\n\u003ctd\u003e32 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\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\u003eBackplane Current Load\u003c\/td\u003e\n\u003ctd\u003e2.3 A at 5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e12 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Power Supplies\u003c\/td\u003e\n\u003ctd\u003e1771-P4S, 1771-P6S, 1771-P4S1, 1771-P6S1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Total I\/O\u003c\/td\u003e\n\u003ctd\u003e1024 (any mix) or 1024 in + 1024 out (complementary)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Analog I\/O\u003c\/td\u003e\n\u003ctd\u003e1024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Scan Time Per Rack\u003c\/td\u003e\n\u003ctd\u003e10 ms at 57.6 kbits\/s, 7 ms at 115.2 kbits\/s, 3 ms at 230.4 mbits\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Total I\/O Chassis\u003c\/td\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Universal Remote I\/O Chassis\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Extended Local I\/O Chassis\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Number of I\/O Racks\u003c\/td\u003e\n\u003ctd\u003e4 (Racks 0-3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemote I\/O Capacity\u003c\/td\u003e\n\u003ctd\u003e12 chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Coprocessor Expansion Port\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\u003c\/td\u003e\n\u003ctd\u003e1770-XYC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 degC (32 to 140 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNon-Operating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC (-40 to 185 degF)\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\u003eInterface Port\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eElectrical Standard \/ Protocol\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel 0\u003c\/td\u003e\n\u003ctd\u003eRS-232C, RS-423, RS-422A compatible (25-pin D-shell)\u003c\/td\u003e\n\u003ctd\u003eSupports ASCII and DF1 full-duplex, half-duplex master, and half-duplex slave protocols for programming or peripheral interfacing.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel 1A\u003c\/td\u003e\n\u003ctd\u003eDH+ \/ Remote I\/O (3-pin and parallel 8-pin mini-DIN)\u003c\/td\u003e\n\u003ctd\u003eConfigurable as a Remote I\/O Scanner, Remote I\/O Adapter, or Data Highway Plus (DH+) communication link.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel 1B\u003c\/td\u003e\n\u003ctd\u003eDH+ \/ Remote I\/O (3-pin connection)\u003c\/td\u003e\n\u003ctd\u003eConfigurable as a Remote I\/O Scanner, Remote I\/O Adapter, or Data Highway Plus (DH+) communication link.\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\u003e\n\u003cstrong\u003eElectrostatic Discharge (ESD) Prevention:\u003c\/strong\u003e Personnel must wear an approved wrist strap grounding device or touch a grounded object to discharge static electricity before handling the module. Avoid direct contact with the backplane connector or integrated pins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure Specifications:\u003c\/strong\u003e Install the controller chassis horizontally inside a heavy-duty steel enclosure to block environmental contaminants, atmospheric dust, moisture, and EMI\/RFI noise interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConvection Cooling Spacing:\u003c\/strong\u003e Maintain a minimum clear spacing of 153 mm (6 inches) above and below the chassis, 102 mm (4 inches) on both sides, and 51 mm (2 inches) vertically and horizontally from internal wiring ducts or adjacent terminal strips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Maintenance:\u003c\/strong\u003e Ensure the ambient air moving upward through the convection cooling column does not exceed 60 degC directly below the controller assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Placement Sequence:\u003c\/strong\u003e Arrange chassis modules from left to right starting with high-priority block-transfer modules closest to the processor, followed by DC inputs, DC outputs, AC inputs, and ending with AC outputs at the far right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIEC 60068-2-1 (Test Ab, Un-packaged Nonoperating Cold \/ Test Ad, Operating Cold)\u003c\/li\u003e\n\u003cli\u003eIEC 60068-2-2 (Test Bc, Un-packaged Nonoperating Dry Heat \/ Test Bd, Operating Dry Heat)\u003c\/li\u003e\n\u003cli\u003eIEC 60068-2-14 (Test Na, Un-packaged Nonoperating Thermal Shock \/ Test Nb, Operating Thermal Shock)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695172874603,"sku":"1785-L30B","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1785-l30b-controller-module-1uxljxk4cmx_3f849a71-71fb-4f5c-b50e-7a8be222f95d.jpg?v=1766114107","url":"https:\/\/www.plcprotech.com\/products\/allen-bradley-1785-l30b-plc-5-standard-processor-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}