Description
The Schneider Electric TM5 Bus Base Modules form the physical and electrical backbone of the Modicon TM5 distributed I/O system, used with Modicon M340, M580 (via ET 200M emulation or TM5 coupler), and Premium PLCs. These bases provide the high-speed TM5 internal bus and mount TM5 digital/analog I/O modules, specialty modules (counter, weigh scale, ASCII), and the Bus Coupler. Proper selection of the first base (Bus Coupler Base), intermediate expansion bases, terminal base, and power supply base is essential for a valid TM5 island.
Key Features
- TM5 Backbone: Powers and communicates with up to 32 TM5 I/O modules per island (depending on coupler).
- Hot-Swap Capable: I/O modules can be replaced without powering down the entire island (with proper configuration).
- DIN Rail Mount: 35 mm top-hat rail (EN 60715).
- Color-Coded: Visual identification of function (coupler / expansion / terminator / TB / PS).
- Interconnect: Bases lock together; bus signals pass through the integral ribbon connector.
Model Descriptions & Selection Table
Model | Description | Function | Notes |
|---|---|---|---|
TM5ACBM01R | Bus Coupler Base (first in island) | Holds TM5 Bus Coupler (e.g. TM5ACSEIP-2, TM5ACCNO1) | Must be first! Supplies 24V DC to bus |
TM5ACBM11 | Expansion Base (intermediate) | Accepts any TM5 I/O or specialty module | Passes bus downstream |
TM5ACBM12 | Expansion Base (alternative depth/version) | Same as BM11 — verify mechanical fit in your panel layout | Some panels use BM12 for clearance |
TM5ACTB06 | Terminal Base (TB) | Provides screw-terminal breakout for field wiring; holds no electronics | Used for clean field wiring termination |
TM5ACBN1 | End Base (Terminator) | Closes TM5 island; contains bus termination resistor | Mandatory last piece of every TM5 island |
TM5SPS3 | System Power Supply Base (24V DC) | Supplies additional 24V DC current to TM5 bus if I/O load exceeds coupler capacity | Optional — only if total I/O current > coupler supply |
⚠️ TM5 Island Rule:[ TM5ACBM01R + Coupler ] → [ TM5ACBM11 / TM5ACTB06 × N ] → [ TM5ACBN1 ]If total I/O power consumption > coupler supply (typically 2 A @ 24V DC from coupler), insert TM5SPS3 at a convenient point in the island.
Technical Specifications (General for TM5 Bases)
Parameter | Value |
|---|---|
Mounting | 35 mm DIN rail (EN 60715) |
Operating Temp. | -25 °C to +60 °C |
Protection | IP20 (install inside cabinet) |
Bus Type | TM5 high-speed parallel backplane bus |
Max. I/O Modules / Island | Up to 32 (depending on coupler & power budget) |
Bus Power Source | From Bus Coupler base (external 24V DC required at coupler) |
Dimensions (per base W) | Approx. 35 mm (single width) — same footprint as TM5 I/O modules |
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3–6 months warranty
- Technical support for:
- TM5 island sizing (how many I/O + TB + SPS3 needed)
- Coupler selection (Ethernet: TM5ACSEIP-2; CANopen: TM5ACCNO1)
- Wiring best practices (separate 24V DC supply for TM5 bus vs. field I/O power)
- Compatibility check with M340 / M580 / Premium PLC architectures
Delivery Time
- Standard delivery: 3–5 working days
- Express shipping available upon request
Why Choose Our Store
- Genuine Schneider Electric Modicon TM5 components
- Global supply network with competitive pricing
- Expertise in Schneider Modicon distributed I/O (TM5 / TM7 / ET 200SP)
- Comprehensive technical documentation (system planner, GSD files, sample HW config)
- Responsive customer service and support
Applications
- Distributed I/O for Modicon M340 / M580 PACs
- Machine-mounted I/O islands (packaging, converting, material handling)
- Remote I/O drops via Ethernet or CANopen
- Retrofit / expansion of existing Schneider Premium systems
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