{"id":"automationdirect-bx-dm1-36ar","model_id":"BX-DM1-36AR","name":"AutomationDirect BX-DM1-36AR","summary":"The BX-DM1-36AR is a BRX Do-more stackable micro-brick programmable logic controller from AutomationDirect. It runs on 120-240 VAC external power and provides 20 AC discrete inputs and 16 relay discrete outputs, with a serial RS-232/RS-485 port, battery-backed retentive memory and a microSD card slot. It is programmed in ladder with Do-more Designer software v2.0 or later and accepts up to eight expansion modules.","study_notes":["Memory is stated as 192k words total: 64k words ladder memory and 128k words user data memory.","Serial port is RS-232/RS-485 on a 3-pin terminal, with speeds up to 115.2k baud.","Port protocols listed: Do-more protocol, Modbus RTU master/slave, ASCII in/out, K-sequence slave, non-secure HTTP webserver, and programming/monitoring.","Discrete inputs are 120-240 VAC, arranged in 5 isolated commons of 4 points each.","Discrete outputs are Form A (SPST) relays rated 12-48 VDC / 24-240 VAC at 2 A per point, arranged in 4 isolated commons of 4 points each.","Includes a real-time clock/calendar, retentive memory, battery backup and a microSD card slot.","Supports up to 8 expansion modules and 100+ PID loops configurable to the memory limit.","A BX-RTB36 or BX-RTB36-1 terminal block kit or ZIPLink pre-wired cables are required; a BX-RTB03S terminal block and D0-MC-BAT battery are included.","Item shipping weight is listed as 1.4 lb; country of origin USA."],"safety_notes":["UL Listed, file number E185989; CE declaration available; RoHS status Yes.","No UL Recognized file, no UL Hazardous file and no CSA file are listed.","Ships with a button-cell lithium battery installed: UN3091, packaging instruction 970, lithium content 0.07; replacement battery D0-MC-BAT (generic CR2032)."],"sources":[{"url":"https://www.automationdirect.com/adc/shopping/catalog/programmable_controllers/brx_plcs_(stackable_micro_brick)/plcs_-a-_cpus/bx-dm1-36ar","title":"BRX Do-more PLC: 20-pt in, 16-pt out, serial port, (programmable logic controller) (PN# BX-DM1-36AR) | AutomationDirect","accessed":"2026-10-26"},{"url":"https://cdn.automationdirect.com/static/specs/cutsheet/BX-DM1-36AR_cutsheet.pdf","title":"BX DM1 36AR cutsheet","accessed":"2026-10-26"}],"verification":{"status":"source_checked","checked_at":"2026-10-26","values":8,"method":"llm_source_check"},"updated_at":"2026-10-26","type":"hardware","spec":{"category":"plc","manufacturer":"automationdirect","controllers":[],"program_memory_words":64000,"data_memory_words":128000,"discrete_inputs":20,"discrete_outputs":16,"serial_ports":1,"supply_voltage":"120-240 VAC","joints":[],"protocols":["modbus-rtu"],"standards":[],"error_codes":[]},"url":"https://machineschema.com/hardware/automationdirect-bx-dm1-36ar","license":"https://creativecommons.org/licenses/by/4.0/"}