{"id":"automationdirect-bx-dm1-36er","model_id":"BX-DM1-36ER","name":"AutomationDirect BX-DM1-36ER","summary":"The BX-DM1-36ER is a BRX Do-more stackable micro brick programmable logic controller from AutomationDirect. It provides 20 discrete input points (12-24 VAC/VDC, sinking/sourcing) and 16 relay output points, plus an RS-232/RS-485 serial port for programming and communications. It is powered from 120-240 VAC, stores programs in ladder logic, and accepts up to eight expansion modules.","study_notes":["Total memory is 192k words, split into 64k words of ladder memory and 128k words of user data memory.","Programs are written in ladder using Do-more Designer programming software v2.0 or later.","Retentive memory, a real-time clock/calendar and battery backup are included; a MicroSD card slot is provided for removable media.","Serial port is a single RS-232/RS-485 3-pin terminal supporting Do-more protocol, Modbus RTU master/slave, ASCII in/out, K-sequence slave, a non-secure HTTP webserver, and programming/monitoring, at speeds up to 115.2k baud.","Up to 8 expansion modules can be added.","10 of the discrete inputs are high-speed capable; frequency response is 250 kHz. High-speed counters are configurable as up to (3) up, (3) down, (3) up/down, (3) pulse/direction, (3) quadrature (A and B) or (3) quadrature (A and B with Z) counters.","Inputs are arranged in 5 isolated commons of 4 points each; outputs in 4 isolated commons of 4 points each.","Outputs are 16 Form A (SPST) relays rated 2 A per point, with a nominal output voltage of 12-48 VDC / 24-240 VAC.","Up to 100+ PID loops, configurable to the memory limit.","Interrupts: up to (4) input interrupts, (4) timer interrupts and (4) match register interrupts.","The unit ships with a BX-RTB03S terminal block and D0-MC-BAT battery, and requires a BX-RTB36 or BX-RTB36-1 terminal block kit or ZIPLink pre-wired cables."],"safety_notes":["UL Listed, file # E185989; no UL Recognized or UL Hazardous file.","CE declaration available and RoHS status: Yes.","Ships with a lithium button cell battery installed (UN3091, packaging instruction 970, lithium content 0.07); replacement battery D0-MC-BAT (CR2032)."],"sources":[{"url":"https://www.automationdirect.com/adc/shopping/catalog/programmable_controllers/brx_plcs_(stackable_micro_brick)/plcs_-a-_cpus/bx-dm1-36er","title":"BRX Do-more PLC: 20-pt in, 16-pt out, serial port, (programmable logic controller) (PN# BX-DM1-36ER) | AutomationDirect","accessed":"2026-10-26"},{"url":"https://cdn.automationdirect.com/static/specs/cutsheet/BX-DM1-36ER_cutsheet.pdf","title":"BX DM1 36ER cutsheet","accessed":"2026-10-26"}],"verification":{"status":"source_checked","checked_at":"2026-10-26","values":9,"method":"llm_source_check"},"updated_at":"2026-10-26","type":"hardware","spec":{"category":"plc","manufacturer":"automationdirect","controllers":[],"weight_kg":0.635,"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-dm1-36er","license":"https://creativecommons.org/licenses/by/4.0/"}