Siemens 6ES7193-6BP00-0DA0 — ET 200SP Base Unit Buying Guide

By Abdullah Zahid
13 min read
Siemens 6ES7193-6BP00-0DA0 SIMATIC ET 200SP BU type A0 base unit with 16 push-in terminals for distributed I/O applications

Siemens 6ES7193-6BP00-0DA0 SIMATIC ET 200SP, BaseUnit BU15-P16+A0+2D, BU type A0, push-in terminals, without auxiliary terminals, new load group — Specifications, Selection, and Procurement Guide

Controls engineers specifying distributed I/O nodes for SIMATIC ET 200SP systems frequently land on the 6ES7193-6BP00-0DA0 when they need a compact, budget-conscious base unit with an integrated mains filter and 16 push-in process terminals operating at 24 V DC. The decision typically comes down to three things: confirming the BU type A0 designation matches the I/O modules already specified, verifying the push-in terminal format is acceptable for the field wiring plan, and confirming no temperature sensing is needed at the base unit level. If all three check out, this is the correct part.

If you have already confirmed this is the right part, check current pricing and availability at LeadTime.ca — ships worldwide.

Who Should Order the 6ES7193-6BP00-0DA0 — and Who Should Not

This base unit is the correct choice for engineers building or expanding a SIMATIC ET 200SP distributed I/O system where standard signal acquisition is sufficient and cost efficiency matters. It is specifically right for you if:

  • Your system supply is 24 V DC — this model supports no other supply voltage
  • Your I/O count per node is 16 process terminals or fewer (multiples can be stacked for more)
  • You are specifying BU type A0 compatible signal modules — not BU type A1 modules with integrated temperature acquisition
  • Push-in terminals (conductor range 0.14 mm² to 2.5 mm²) are acceptable for your field wiring
  • An external 24 V DC / 10 A miniature circuit breaker (Type B or C) is available or planned in the enclosure design
  • No redundancy, dual-channel isolation, or integrated thermal monitoring is required at the base unit

If your application requires temperature acquisition on the base unit itself, specify the 6ES7193-6BP00-0DA1 (BU type A1) instead. If screw or spring-cage terminals are mandatory for your field wiring, a different base unit family is required.

On this page:

What the 6ES7193-6BP00-0DA0 Actually Does Inside an ET 200SP System

The 6ES7193-6BP00-0DA0 is not a signal module — it is the mechanical and electrical foundation that makes signal modules functional. Designated BU15-P16+A0+2D and classified as BU type A0, this base unit provides the DIN rail mounting structure, the P1 and P2 voltage bus bars for power distribution across the node, and 16 push-in process terminals where field signal wiring lands. It also integrates a mains filter directly into the unit, which eliminates the need for a separate external filter board in most standard installations.

The base unit itself does not perform signal processing. Its job is to accept the plug-in I/O signal modules above it, distribute 24 V DC from the P1/P2 bus to those modules, and present the 16 process terminals to the field. The new load group configuration means this unit initiates a fresh potential group in multi-base-unit chains, which is useful when galvanic separation between groups is required in the same ET 200SP rack. Without a base unit of this type correctly installed, I/O modules have no electrical connection to the control system or to field devices.

Typical System Architecture for ET 200SP Base Unit Deployments

The 6ES7193-6BP00-0DA0 sits between the 24 V DC power supply and the plug-in I/O signal modules in the ET 200SP node. Understanding where it fits in the signal and power chain prevents wiring errors and sizing mistakes.

  • 24 V DC power supply feeds through an external 10 A Type B or C miniature circuit breaker upstream of the base unit
  • The base unit P1 and P2 bus bars receive and distribute that protected 24 V DC across all modules seated on the unit
  • Plug-in I/O signal modules (digital, analog, or specialty) are inserted into the base unit slot and draw power from the P1/P2 buses
  • Field signal wiring — sensors, actuators, solenoids — connects to the 16 push-in process terminals on the base unit face
  • The ET 200SP interface module (IM) on the same DIN rail segment handles communication back to the central PLC over PROFINET or another fieldbus

Industries and Applications Where This Base Unit Is Specified

In discrete manufacturing environments — automotive assembly, food and beverage packaging, conveyor systems — the 6ES7193-6BP00-0DA0 is a standard building block for distributed I/O nodes that monitor and control field devices at machine level. Its compact 15 mm width and 40 g weight make it practical for dense panel layouts where space per node is constrained.

OEM machine builders and system integrators standardizing on SIMATIC ET 200SP across multiple product lines use the Type A0 base unit as their default non-thermal node. By committing to a single base unit type for standard I/O applications, they reduce spare parts inventory, simplify technician training, and avoid cross-site procurement fragmentation.

Retrofit applications — replacing aging ET 200 or ET 200S nodes with modern ET 200SP hardware — are a common driver for procurement of this specific model. The 6ES7193-6BP00-0DA0 supports hardware functional status from FS06 onward, making it compatible with a broad range of current ET 200SP I/O module generations.

Water and wastewater utilities, HVAC infrastructure monitoring, and high-altitude installations also use this unit. The operating temperature range of -30°C to 60°C (horizontal) and altitude rating to 5,000 m with restrictions above 2,000 m cover most industrial outdoor cabinet and facility monitoring scenarios.

Application Typical Deployment
Automotive assembly line Distributed I/O node per station; digital I/O for tooling, fixtures, presence sensors
Food and beverage packaging Compact DIN rail node monitoring conveyor sensors and solenoid valves per zone
OEM machine building Standardized ET 200SP Type A0 nodes across product lines for spare parts consolidation
ET 200 / ET 200S retrofit Drop-in replacement node upgrade; maintains DIN rail footprint with modern I/O modules
Water and wastewater utility Remote I/O node at pump stations or tank monitoring points; altitude-rated enclosure
Material handling and logistics Modular I/O expansion at conveyor branch points and sortation zones

Purchase-Decision Specifications and Key Electrical Ratings

Specification Value
Model 6ES7193-6BP00-0DA0
Product Type Designation BU type A0 (BU15-P16+A0+2D)
Supply Voltage (Rated) 24 V DC
External Protection Required 24 V DC / 10 A miniature circuit breaker, Type B or C
Current Capacity (P1/P2 Bus) 10 A maximum
Current Capacity (Process Terminals) 2 A maximum
Number of Process Terminals 16
Terminal Type / Conductor Range Push-in / 0.14 mm² to 2.5 mm² (AWG 26 to 14)
Dimensions (W x H x Depth) 15 x 117 x 35 mm
Operating Temperature (Horizontal / Vertical) -30°C to 60°C / -30°C to 50°C

Full technical specifications are available on the product page at LeadTime.ca.

6ES7193-6BP00-0DA0 vs. 6ES7193-6BP00-0DA1 and Other ET 200SP Base Unit Variants

The most common ordering error on this product family is specifying the wrong BU type. The difference between A0 and A1 is not cosmetic — it determines which plug-in I/O modules are compatible and whether thermal monitoring is available at the node.

Feature 6ES7193-6BP00-0DA0 (A0) 6ES7193-6BP00-0DA1 (A1)
Product Type BU type A0 BU type A1
Integrated Temperature Sensor No Yes
Supply Voltage 24 V DC 24 V DC
Current Capacity (Buses) 10 A 10 A
Process Terminals 16 16
Mains Filter Integrated Integrated
External Circuit Breaker Required (10 A, Type B/C) Required (10 A, Type B/C)
Hardware Status From FS06 From FS10
Cost Tier Entry-level / Budget Mid-range / Standard
Primary Benefit Lower cost, simpler BOM Built-in diagnostics, thermal isolation
Model Type Filter Terminals Temperature Sensor Tier
6ES7193-6BP00-0DA0 A0 Integrated 16 No Budget
6ES7193-6BP00-0DA1 A1 Integrated 16 Yes Standard
6ES7193-6BP00-2DA0 A0 Integrated 32 No Mid-scale

If your architecture requires thermal monitoring at the base unit level, the 6ES7193-6BP00-0DA1 is the correct choice — check current availability and pricing for all ET 200SP base unit variants at LeadTime.ca.

Expert Verdict: Is This the Right Base Unit for Your System?

The 6ES7193-6BP00-0DA0 earns its place as the default entry-level base unit for SIMATIC ET 200SP because it eliminates a real cost and complexity problem: the integrated mains filter removes the need for an external filter board, and integrators who have made the switch from older distributed I/O platforms report measurable reductions in per-node BOM cost and panel build time. At 15 mm wide and 40 g, it is one of the most space-efficient options in the ET 200SP family. For controls engineers specifying standard discrete or analog I/O nodes without thermal monitoring requirements, there is no functional reason to pay the premium for the A1 variant.

The honest limits of this unit are equally clear. If BU type A1 modules are already specified in the project — modules that depend on the A1 base unit's integrated temperature sensor — the 6ES7193-6BP00-0DA0 is the wrong part and will cause commissioning failures. The 16 process terminal capacity is a fixed constraint; projects with higher I/O counts per node need to plan for multiple base units with individual circuit breakers, which adds to both cost and panel space. And because this model has been available from FS06 onward, teams working with very early ET 200SP hardware revisions predating FS06 should verify hardware compatibility before ordering. If your system requires redundancy or dual-channel isolation, standard base units in this family do not provide those features.

From a procurement standpoint, the 6ES7193-6BP00-0DA0 is a standard stocking item at major authorized distributors, with typical availability of 1–2 weeks for in-stock quantities. Volume pricing generally activates at 10 or more units, and bundled pricing with I/O module packages is common for OEM and system integrator accounts. If you are building out multiple nodes or need to confirm availability before committing to a build schedule, view current stock and pricing at LeadTime.ca.

For volume pricing or to confirm lead time before committing to a build, contact the LeadTime.ca team directly — we ship worldwide.

Wiring and Installation Overview

The following points cover the key requirements for installing and wiring the 6ES7193-6BP00-0DA0. Engineers requiring full installation procedures should refer to the official Siemens SIMATIC ET 200SP system manual available through support.industry.siemens.com.

  • Mount the base unit on a DIN rail inside an enclosure that maintains ambient temperature within -30°C to 60°C horizontal or -30°C to 50°C vertical; above 2,000 m altitude, verify derating applies
  • Install a 24 V DC / 10 A Type B or C miniature circuit breaker upstream of the P1 terminal — this is mandatory for overload protection and regulatory compliance; the base unit has no integrated protection
  • Connect 24 V DC positive to P1 and negative to P2; the integrated mains filter is part of this unit and does not require a separate connection in standard installations
  • Field signal wiring lands on the 16 push-in process terminals; conductor cross-section must be between 0.14 mm² and 2.5 mm² (AWG 26 to 14) — conductors outside this range will not seat correctly
  • Insert BU type A0 compatible I/O signal modules into the base unit slot only after power is removed; verify module alignment before applying seating pressure to avoid connector damage

Compatible Modules and System Expansion Options

The 6ES7193-6BP00-0DA0 is the foundation of an ET 200SP node — what you add on top of it determines the system's actual I/O capability. The following accessories and module types are used with this base unit based on information in the product brief.

  • BU type A0 compatible I/O signal modules — digital input, digital output, analog input, and analog output modules designed for the Type A0 base unit; verify type designation before ordering
  • Color-coding labels (CC00–CC09) — terminal identification labels for multi-node installations where visual zone differentiation reduces wiring errors during commissioning and maintenance
  • Protective covers — optional covers for unused module slots to prevent contamination in dusty or wet environments
  • Additional 6ES7193-6BP00-0DA0 base units — stacked in series on the same DIN rail segment for I/O counts exceeding 16 process terminals per node; each additional unit requires its own circuit breaker
  • SIMATIC ET 200SP interface module (IM) — required on the same DIN rail segment to handle PROFINET or fieldbus communication back to the central PLC; not included with the base unit

Wrong-Part Prevention Checklist Before You Order

Before placing an order for the 6ES7193-6BP00-0DA0, verify each item on this checklist against your design documentation. These are the most common sources of incorrect orders on this product.

  1. Verify existing system uses SIMATIC ET 200SP, not ET 200, ET 200S, or ET 200eco/pro
  2. Confirm 24 V DC is the system supply voltage; model does not support 120 V AC or other rails
  3. Check that one base unit with 16 terminals meets I/O requirements; multiples needed if more signals exist
  4. Ensure external 24 V DC/10 A circuit breaker is available in the enclosure design
  5. Verify Type A0 module set is available; BU type A1 modules (with temperature sensor) require the A1 base unit variant
  6. Confirm push-in terminals are acceptable; if screw terminals required, a different base unit family is needed
  7. Check hardware functional status (FS06 or higher) matches your I/O module generation and firmware
  8. Confirm no redundancy or dual-channel isolation required; standard base units do not provide these

If any item on this checklist flags a mismatch, contact the LeadTime.ca team before ordering — we can help identify the correct variant and confirm availability worldwide.

Frequently Asked Questions

Can I use BU type A1 I/O modules on the 6ES7193-6BP00-0DA0?

No. BU type A1 modules expect the integrated temperature sensor present on the A1 base unit (6ES7193-6BP00-0DA1). Installing A1 modules on a Type A0 base unit will result in either physical seating failure or runtime faults in the PLC because the firmware expects temperature data the A0 cannot provide. Always match the module type designation to the base unit type before ordering.

What happens if I omit the external circuit breaker?

The 6ES7193-6BP00-0DA0 has no integrated overload protection. Without an external 24 V DC / 10 A Type B or C miniature circuit breaker upstream of the P1 terminal, the system has no means to safely interrupt an overcurrent event from shorted field wiring or a module fault. Systems built without this protection typically fail factory acceptance testing and cannot receive UL or CE certification in regulated environments.

Does the integrated mains filter eliminate the need for any external filtering?

For most standard industrial installations, yes — the integrated filter in the 6ES7193-6BP00-0DA0 handles typical EMC requirements without an external filter board. However, in installations with very long cable runs or unusually high EMC sensitivity at the site level, additional external filtering between the power supply and P1 may be warranted. Verify against your site EMC assessment before finalizing the design.

How many base units can I stack on a single ET 200SP segment?

The brief does not specify a maximum stacking count per segment — refer to the official Siemens SIMATIC ET 200SP system manual for that constraint. What is confirmed is that each 6ES7193-6BP00-0DA0 provides 16 process terminals and requires its own external 10 A circuit breaker, and that additional base units are required any time the I/O count exceeds 16 signals per node. The new load group feature on this model also allows galvanic separation between groups in multi-unit chains.

What is the hardware functional status requirement, and why does it matter?

The 6ES7193-6BP00-0DA0 is available from hardware functional status FS06 onward. This matters because I/O modules and firmware revisions introduced after FS06 may not be backward compatible with earlier base unit hardware versions. If your ET 200SP system was built before FS06 was released, verify that the existing base unit hardware revision is compatible with the I/O modules you plan to install before ordering replacements or expansions.

Is the 6ES7193-6BP00-0DA0 rated for high-altitude or outdoor enclosure applications?

The unit is rated for operation at altitudes up to 5,000 m, with restrictions applying above 2,000 m. The operating temperature range covers -30°C to 60°C in horizontal mounting and -30°C to 50°C in vertical mounting, which covers most industrial outdoor cabinet scenarios. Storage dry room conditions require a dew point minimum of -60°C. Confirm enclosure ventilation and ambient conditions meet these parameters before deployment in outdoor or high-altitude sites.

Why Order From LeadTime.ca

  • LeadTime.ca ships the 6ES7193-6BP00-0DA0 and the full SIMATIC ET 200SP base unit family worldwide — no regional restrictions
  • Volume pricing is available for multi-unit orders; contact the team directly for project quotes on 10 or more units
  • Bundled pricing with compatible I/O signal modules is available for OEM and system integrator accounts
  • Hard-to-find variants and specific hardware functional status revisions can be sourced on request
  • Fast response for lead time confirmation before you commit to a build schedule

At-a-Glance Closing Summary

  • Model: 6ES7193-6BP00-0DA0 — BU type A0, BU15-P16+A0+2D designation
  • Supply voltage: 24 V DC only; no AC or alternative DC rails supported
  • 16 push-in process terminals; conductor range 0.14 mm² to 2.5 mm² (AWG 26 to 14)
  • P1/P2 bus rated at 10 A maximum; process terminals rated at 2 A maximum
  • External 24 V DC / 10 A Type B or C miniature circuit breaker is mandatory — not integrated
  • Mains filter is integrated — no external filter board required in standard installations
  • Dimensions: 15 x 117 x 35 mm; weight: 40 g
  • Operating temperature: -30°C to 60°C horizontal, -30°C to 50°C vertical
  • Altitude rated to 5,000 m with derating above 2,000 m
  • Isolation test: 707 V DC (type test); eClass 14–6 and China RoHS compliant
  • Compatible with BU type A0 I/O modules only; BU type A1 modules require the 6ES7193-6BP00-0DA1
  • Hardware functional status from FS06 onward; verify against I/O module generation before ordering
  • New load group configuration supports galvanic separation in multi-base-unit ET 200SP chains
  • Entry-level cost tier; volume pricing available at 10+ units through LeadTime.ca