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AutomationDirect BX-DM1-10AR-D

The BX-DM1-10AR-D is a BRX Do-more programmable logic controller CPU with 6 AC discrete inputs and 4 relay outputs. It provides an RS-232/RS-485 serial port, microSD card slot, battery-backed retentive memory, and real-time clock/calendar. It is programmed in ladder with Do-more Designer v2.0 or later and accepts up to eight expansion modules.

Source checked8/8 values · 2026-10-26AutomationDirectPLC

Specification

2 sources
Categoryplc
Program memory64,000 words
Data memory128,000 words
Discrete inputs6
Discrete outputs4
Serial ports1
Supply voltage12-24 VDC

Study notes

  • Total memory is stated as 192k words: 64k words ladder program memory plus 128k words user data memory.
  • The serial port is one RS-232/RS-485 3-pin terminal, rated up to 115.2k baud.
  • Serial port protocols include Do-more protocol, Modbus RTU master/slave, ASCII in/out, K-sequence slave, and a non-secure HTTP webserver.
  • Discrete inputs are 6 points at 120-240 VAC nominal, arranged in 2 isolated commons of 3 points each.
  • Discrete outputs are 4 Form A (SPST) relay points rated 2 A per point, with 12-48 VDC / 24-240 VAC nominal output voltage and 2 isolated commons of 2 points each.
  • Supports up to 8 expansion modules and up to 100+ PID loops configurable to memory limit.
  • Includes a BX-RTB03S terminal block and D0-MC-BAT battery; requires a BX-RTB10, BX-RTB10-1, or BX-RTB10-2 terminal block kit or ZIPLink pre-wired cables.
  • Programming software required is Do-more Designer v2.0 or later; programming language is ladder.
  • The item listing states shipping weight as 0.55 lb; this is not stated as net product weight.

Safety

  • UL Listed File # E185989.
  • CE declaration and RoHS status are stated; EU REACH document is referenced.
  • Contains an installed lithium button battery: UN3091, packaging instruction 970, replacement battery D0-MC-BAT, generic battery CR2032.
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