AutomationDirect BX-DM1-10ED2-D

The BX-DM1-10ED2-D is a stackable micro brick programmable logic controller in the AutomationDirect BRX Do-more line. It executes ladder logic written in Do-more Designer v2.0 or later and provides 6 discrete inputs and 4 sourcing discrete outputs, powered from an external 12-24 VDC supply. One RS-232/RS-485 terminal port carries Modbus RTU master/slave, ASCII, K-sequence slave and programming/monitoring traffic, and up to 8 expansion modules can be added.

Source checked10/10 values · 2026-10-26

AutomationDirect PLC

Motion axes

Specification

2 sources

Category	plc
Program memory	64,000 words
Data memory	128,000 words
Discrete inputs	6
Discrete outputs	4
Serial ports	1
Supply voltage	12-24 VDC
Switching frequency	250,000 Hz

Study notes

Total memory is 192k words: 64k words ladder memory plus 128k words user data memory.
Includes a MicroSD card slot, real-time clock/calendar, retentive memory and battery backup.
Maximum of 8 expansion modules allowed.
Discrete inputs: 6 points, 12-24 VAC/VDC, sinking/sourcing, arranged in 2 isolated commons of 3 points.
Discrete outputs: 4 points, 12-24 VDC sourcing, 0.5 A per point, in 2 isolated commons of 2 points.
All 6 discrete inputs are high-speed capable; 2 discrete outputs are high-speed capable.
High-speed counters: up to 3 up, 3 down, 3 up/down, 3 pulse/direction, 3 quadrature (A and B) or 3 quadrature with Z.
Pulse output modes: up to 4 virtual axes, 2 PTO linear step/direction, 1 PTO CW/CCW, 1 PTO quadrature (A and B) and 2 PWM outputs.
Supports more than 100 PID loops, configurable to the memory limit.
Serial port speed up to 115.2k baud; port protocols include Do-more protocol, Modbus RTU master/slave, ASCII in/out, K-sequence slave and a non-secure HTTP webserver.
Ships with BX-RTB03S terminal block and D0-MC-BAT battery; requires BX-RTB10, BX-RTB10-1 or BX-RTB10-2 terminal block kit or ZIPLink pre-wired cables.
Programming software: Do-more Designer v2.0 or later; programming language is ladder.

Safety

UL Listed, file # E185989; no UL Recognized listing and no UL Hazardous listing are stated.
CE declaration and EU REACH document are available; RoHS status is stated as compliant.
No CSA file number is stated.
Ships with a lithium button battery installed: UN3091, packaging instruction 970, lithium content 0.07; replacement battery D0-MC-BAT (generic CR2032).