# AutomationDirect BX-DM1-10ED1-D

Hardware · `BX-DM1-10ED1-D` · verification: source checked

The BX-DM1-10ED1-D is a BRX Do-more stackable micro brick programmable logic controller from AutomationDirect. It runs ladder logic programmed with Do-more Designer software and provides six discrete inputs rated 12-24 VAC/VDC plus four sinking discrete outputs at 12-24 VDC, along with one RS-232/RS-485 serial port. It has a microSD card slot, battery-backed retentive memory and accepts up to eight expansion modules.

## Specification

| Property | Value |
|---|---|
| Category | plc |
| Weight | 0.2268 kg |
| Program memory | 64000 words |
| Data memory | 128000 words |
| Discrete inputs | 6 |
| Discrete outputs | 4 |
| Serial ports | 1 |
| Supply voltage | 12-24 VDC |

## Connected

- Manufacturer: [AutomationDirect](https://machineschema.com/manufacturer/automationdirect.md)
- Protocols: [MODBUS RTU](https://machineschema.com/protocol/modbus-rtu.md)

## Safety

- UL Listed, file # E185989; CE declaration and RoHS status stated as compliant.
- Shipped with a lithium button battery installed (UN3091, packaging instruction 970, lithium content 0.07); replacement battery D0-MC-BAT, generic CR2032.
- Supply requirement is 12-24 VDC external power.

## Study notes

- Total memory is 192k words, split into 64k words ladder memory and 128k words user data memory.
- Programmed in ladder using Do-more Designer programming software v2.0 or later.
- Communication port is (1) RS-232/RS-485 on a 3-pin terminal, up to 115.2k baud.
- Port protocols: Do-more protocol, Modbus RTU master/slave, ASCII in/out, K-sequence slave, non-secure HTTP webserver, programming and monitoring.
- Discrete inputs are sinking/sourcing, 12-24 VAC/VDC, arranged in 2 isolated commons of 3 points each.
- Discrete outputs are sinking, 12-24 VDC, 0.5 A per point, arranged in 2 isolated commons of 2 points each.
- All 6 discrete inputs are high-speed capable; 2 discrete outputs are high-speed capable, with 250 kHz frequency response.
- High-speed counters: up to (3) up, (3) down, (3) up/down, (3) pulse/direction, (3) quadrature (A and B) and (3) quadrature with Z.
- Output pulse modes: up to (4) virtual axes, (2) PTO linear step/direction, (1) PTO rotary CW/CCW, (1) PTO quadrature and (2) PWM outputs.
- Axis profiles include relative/absolute positioning, velocity mode, trapezoid, S-curve, electronic gearing, camming, following, homing, jogging and linear interpolation.
- Up to 100+ PID loops, configurable to memory limit; real-time clock/calendar and retentive memory included.
- Includes 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.

## Sources

1. [BRX Do-more PLC: 6-pt in, 4-pt out, serial port, (programmable logic controller) (PN# BX-DM1-10ED1-D) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/programmable_controllers/brx_plcs_(stackable_micro_brick)/plcs_-a-_cpus/bx-dm1-10ed1-d) (accessed 2026-10-26)
2. [BX DM1 10ED1 D cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/BX-DM1-10ED1-D_cutsheet.pdf) (accessed 2026-10-26)

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