TWDLMDA20DRT
Schneider Electric
Overview
The TWDLMDA20DRT is a Modular base controller in the Twido range from Schneider Electric. It executes control logic for the Modicon TM logic controller / I/O architectures and operates from a limits 20.4...26.4 V supply.
Application & Technical Notes
As a modular base controller, the TWDLMDA20DRT is intended for deployment in panel-based control cabinets and machine enclosures where the Modicon TM logic controller / I/O equipment is installed. It hosts the application program, executes the control cycle and orchestrates I/O scanning, communication and diagnostics for the station.
Key published characteristics include a limits 20.4...26.4 V rating, an operating temperature range of 0...55 °C. These values should be confirmed against the current manufacturer datasheet before final selection, as options and suffixes vary by configuration.
Maintenance & Diagnostics
Respect the published operating temperature window (0...55 °C); do not exceed it during commissioning or in enclosed panels without airflow. For storage and transit, keep the unit within -25...70 °C. Avoid condensation — the rated humidity is 30...95 % without condensation; store and operate the module in a dry, pollution-degree-appropriate enclosure. Back up the application program and parameter set before any firmware or hardware change; verify the memory/real-time-clock battery where fitted and replace on schedule. Monitor the module health LED and controller diagnostics; plan spares for critical stations to minimise downtime. Always de-energise the circuit and follow lock-out/tag-out before handling; refer to the official instruction bulletin for service procedures.
Sourcing & Procurement
When sourcing the TWDLMDA20DRT, distinguish three supply tiers: (1) genuine Schneider Electric stock from an authorised distributor; (2) compatible equivalents or surplus/NOS (new-old-stock) from third parties; (3) alternative parts offering equivalent function. Genuine supply carries the full warranty and traceability; compatible or alternative items may be cheaper but should be validated for form, fit, firmware and certification before use in a live system. PLCXpert publishes this page as an independent reference and does not sell the part — verify every claim with the manufacturer or your distributor.
Confirm the CPU matches your Modicon TM logic controller / I/O architecture, memory size, firmware revision and any required option/communication modules. Lead times and pricing vary by region and lifecycle status; obtain a current quote from an authorised channel rather than relying on stale listings.
Check live stock, lead time and request a quote for TWDLMDA20DRT (opens in a new tab)
Frequently Asked Questions
What is the TWDLMDA20DRT?
The TWDLMDA20DRT is a modular base controller in the Twido range from Schneider Electric. It is described by the manufacturer as: Modular base controller.
What are the key technical ratings of the TWDLMDA20DRT?
Its published highlights include limits 20.4...26.4 V, operating temperature 0...55 °C. Full electrical, mechanical and environmental limits are listed in the manufacturer datasheet and should be confirmed for your exact suffix.
How is the TWDLMDA20DRT mounted or installed?
Installation follows the standard Modicon TM logic controller / I/O mounting practice for this device class; refer to the installation manual for exact dimensions and torque.
Is the TWDLMDA20DRT compatible with my controller?
It is part of the Modicon TM logic controller / I/O family. Confirm the specific rack, firmware revision, slot rules and configuration with the controller documentation before purchase, as compatibility depends on the exact system build.
What should I check before buying the TWDLMDA20DRT?
Verify the genuine part number and suffix, confirm it matches your platform and ratings, check the current lifecycle/availability status, and buy from an authorised distributor. PLCXpert provides this reference only and does not sell the component.
Specifications
Schneider Electric TWDLMDA20DRT
Main
| Note | Commercial Status Commercialised Range of product Twido |
|---|---|
| Product or component | type Modular base controller Discrete I/O number 20 Discrete input number 12 |
| Discrete input logic Sink or source | N/A |
| Discrete input voltage 24 V | N/A |
| Discrete input voltage | type DC Discrete output number 6 for relay 2 for transistor (source) [Us] rated supply voltage 24 V DC Number of I/O expansion module 7 Free slots 2 Use of slot 32 K or 64 K memory cartridge and 1 realtime clock |
Complementary
| Note | Input voltage limits 20.4...26.4 V Discrete input current 7 mA for I0.8 to I0.11 7 mA for I0.2 to I0.5 5 mA for I0.6 to I0.7 5 mA for I0.0 to I0.1 Input impedance 5700 Ohm for I0.6 to I0.7 5700 Ohm for I0.0 to I0.1 4700 Ohm for I0.8 to I0.11 4700 Ohm for I0.2 to I0.5 Filter time 45 µs for I0.6 to I0.7 at state 0 45 µs for I0.0 to I0.1 at state 0 40 µs for I0.8 to I0.11 at state 1 40 µs for I0.2 to I0.5 at state 1 35 µs for I0.6 to I0.7 at state 1 35 µs for I0.0 to I0.1 at state 1 150 µs for I0.8 to I0.11 at state 0 150 µs for I0.2 to I0.5 at state 0 Insulation between channel and internal logic 1500 Vrms for 1 minute Insulation resistance between channel None Discrete output voltage 24 V Output voltage limits 20.4...28.8 V Current per channel 0.36 A for transistor output 2 A for relay output Current per output common 8 A for relay output 1 A for transistor output Response time 5 µs for Q0.0 to Q0.1 at state 1 5 µs for Q0.0 to Q0.1 at state 0 [Ures] residual voltage <= 1 V at state 1 Leakage current 0.1 mA Output overvoltage protection 39 V Tungsten load 8 W Surge current <= 5 A for relay output Discrete output current 300 mA Minimum load 0.1 mA Contact resistance <= 40000 µOhm Load current 2 A at 30 V DC resistive load, operating rate = 30 cyc/mn for relay output 2 A at 30 V DC inductive load, operating rate = 30 cyc/mn for relay output 2 A at 240 V AC resistive load, operating rate = 30 cyc/mn for relay output 2 A at 240 V AC inductive load, operating rate = 30 cyc/mn for relay output Mechanical durability >= 20000000 cycles for relay output Electrical durability >= 100000 cycles for relay output Current consumption 5 mA at 5 V DC at state 0 40 mA at 24 V DC at state 1 30 mA at 5 V DC at state 1 I/O connection Removable screw terminal block Input/Output number <= 244, HE-10 connector with I/O expansion module <= 188, spring terminal block with I/O expansion module <= 132, removable screw terminal block with I/O expansion module Supply voltage limits 20.4...26.4 V Protection type Power protection with internal fuse Power consumption in W <= 19 W (base + 4 expension module) Inrush current <= 50 A for power supply <= 1 A for transistor output Insulation resistance > 10 MOhm at 500 V, between supply and earth terminals > 10 MOhm at 500 V, between I/O and earth terminals Program memory 3000 instructions 6000 instructions with 64 K memory cartridge Exact time for 1 K instruction 1 ms System overhead 0.5 ms Memory description Internal RAM, floating, trigonometrical Internal RAM, double words, no floating, no trigonometrical Internal RAM, 3000 internal words, no floating, no trigonometrical Internal RAM, 256 internal bits, no floating, no trigonometrical Internal RAM, 128 timers, no floating, no trigonometrical Internal RAM, 128 counters, no floating, no trigonometrical Battery type Lithium for internal RAM, autonomy: 30 days, charging time = 15 h, battery life = 10 yr Integrated connection type Non isolated serial link mini DIN, Modbus/character mode master/slave RTU/ ASCII (RS485) half duplex, 38,4 kbit/s Power supply Counting input number 2 channel(s) at 5000 Hz 16 bits 2 channel(s) at 20000 Hz 32 bits Positioning functions PWM/PLS 2 channel(s) at 7 kHz Analogue input number 1 Analogue input range 0...10 V Analogue input resolution 9 bits Input impedance 100000 Ohm Complementary function Event processing PID Analogue adjustment points 1 point adjustable from 0...1023 Status LED 1 LED per channel for I/O status 1 LED green for RUN 1 LED green for PWR 1 LED for STAT 1 LED for ERR CAD overall width 48 mm CAD overall height 95 mm CAD overall depth 70 mm Terminals description PLC n°1 (0)IN_DIS#0 (1)IN_DIS#1 (10)IN_DIS#10 (11)IN_DIS#11 (2)IN_DIS#2 (3)IN_DIS#3 (4)IN_DIS#4 (5)IN_DIS#5 (6)IN_DIS#6 (7)IN_DIS#7 (8)IN_DIS#8 (9)IN_DIS#9 (COM)COM_NEG#0-11 ALT TB_1 Terminals description PLC n°2 (0)IN_DIS#0 (1)IN_DIS#1 (10)IN_DIS#10 (11)IN_DIS#11 (2)IN_DIS#2 (3)IN_DIS#3 (4)IN_DIS#4 (5)IN_DIS#5 (6)IN_DIS#6 (7)IN_DIS#7 (8)IN_DIS#8 (9)IN_DIS#9 (COM)COM_POS#0-11 ALT_1 TB_1 Terminals description PLC n°3 (0)OUT_DIS#0 (1)OUT_DIS#1 (2)OUT_DIS#2 (3)OUT_DIS#3 (4)OUT_DIS#4 (5)OUT_DIS#5 (6)OUT_DIS#6 (7)OUT_DIS#7 (COM0)COM0_POS#0-1 (COM1)COM1#2-4 (COM2)COM2#5-6 (COM3)COM3#7 (NC)UNUSED (V-)PW_NEG TB_2 Product weight 0.185 kg |
|---|
Environment
| Note | Immunity to microbreaks 10 ms Dielectric strength 500 V for 1 minute, between supply and earth terminals 1500 V for 1 minute, between I/O and earth terminals |
|---|---|
| Product certifications CSA | UL |
| Marking CE | N/A |
| Ambient air temperature for storage -25...70 °C | Ambient air temperature for operation 0...55 °C Relative humidity 30...95 % without condensation |
| IP degree of protection IP20 | N/A |
| Operating altitude 0...2000 m | Storage altitude 0...3000 m Vibration resistance 4 gn, 25...100 Hz mounting on: plate or panel with fixing kit 1.6 mm, 2...25 Hz mounting on: plate or panel with fixing kit 1 gn, 57...150 Hz mounting on: 35 mm symmetrical DIN rail 0.075 mm, 10...57 Hz mounting on: 35 mm symmetrical DIN rail |
| Shock resistance 15 gn for 11 ms | N/A |
Reproduced from the manufacturer's published data. Values marked "Not available" are absent from the source document.