Siemens 6ES7135-6HD00-0BA1 — ET 200SP Analog Output Selection Guide

By Abdullah Zahid
13 min read
Siemens 6ES7135-6HD00-0BA1 SIMATIC ET 200SP analog output module AQ 4xU/I ST for proportional valve and VFD control

Siemens 6ES7135-6HD00-0BA1 SIMATIC ET 200SP Analog Output Module AQ 4xU/I ST — Specifications, Selection Criteria, and Procurement Guide

Controls engineers specifying analog output capacity for a SIMATIC ET 200SP distributed I/O system arrive at the Siemens 6ES7135-6HD00-0BA1 when they need four independent channels capable of driving both voltage and current signals from a single module slot. With a basic accuracy of ±0.3% of output range at 25°C, a minimum cycle time of 5 ms across all four channels simultaneously, and built-in wire-break and short-circuit diagnostics, the 6ES7135-6HD00-0BA1 covers a broad range of analog field device control requirements — proportional valves, variable frequency drives, and multi-zone temperature controllers among them. The decision point is straightforward: if your ET 200SP rack runs mixed analog output device types and your base unit is type A0 or A1, this module is the direct path to a clean, verified solution.

If you have already confirmed this is the correct part for your system, check current pricing and availability for the 6ES7135-6HD00-0BA1 at LeadTime.ca — ships worldwide.

Who Should Buy the 6ES7135-6HD00-0BA1 — and Who Shouldn't

This module is the right choice if your project meets all of the following criteria:

  • Your I/O system is SIMATIC ET 200SP and your base unit is confirmed type A0 or A1 — not A2 or any other variant
  • Your application requires a mix of voltage outputs (0–10V, ±10V, 1–5V, ±5V) and current outputs (0–20mA, ±20mA) from a single module, or you need the flexibility to configure per channel group at commissioning
  • You have a stable 24V DC supply rail in the cabinet (19.2–28.8V operating range) with appropriate upstream circuit protection
  • Your channel count requirement is exactly four — neither fewer (no channel disable) nor more (no expansion per module)
  • Your plant electrical safety policy requires a minimum isolation type test voltage of 707V DC between channels and the backplane bus
  • Your end devices present load impedances of at least 2 kΩ (voltage) or no more than 500 Ω (current)

If your end devices are exclusively one signal type, the AQ 4xU ST (6ES7135-6HL00-0BA1) for voltage-only or the AQ 4xI ST (6ES7135-6HE00-0BA1) for current-only will simplify configuration and may reduce cost. If your system does not use ET 200SP base units at all, alternative module families are required.

On this page:

What the 6ES7135-6HD00-0BA1 Actually Does in a Running System

The 6ES7135-6HD00-0BA1 is a plug-in distributed analog output module belonging to the SIMATIC ET 200SP product family. Its core function is signal conversion: it receives 16-bit digital values from the PLC or controller logic and translates them into standardized analog voltage or current signals at the physical output terminals, which then drive field devices — proportional valves, AC drive speed references, temperature controller setpoints, or pneumatic amplifiers.

The AQ 4xU/I designation is precise about what the module delivers. AQ indicates Analog output (Quantity). The 4x specifies four independent output channels. U/I means the module supports both voltage (U) and current (I) output types on the same physical module — configurable during commissioning. ST denotes the Standard version, distinguishing it from high-feature or safety-rated variants. The catalog number 6ES7135-6HD00-0BA1 is the globally valid ordering designation with no regional variants.

At 31 g and 133 mm wide by 58 mm deep, the module occupies minimal cabinet real estate. The onboard diagnostics — including wire-break detection on current channels, short-circuit detection on voltage channels, and supply voltage monitoring — reduce commissioning time and support faster fault isolation during operation. All four channels operate at a minimum cycle time of 5 ms simultaneously, providing deterministic output response that suits motion, flow, and thermal control loops alike.

Where This Module Fits in a Typical ET 200SP System Architecture

The 6ES7135-6HD00-0BA1 sits at the analog output boundary of an ET 200SP distributed I/O station — receiving process commands from the controller via the ET 200SP backplane and converting them into physical analog signals at the field device terminals.

  • SIMATIC S7-1500 or S7-1200 PLC (or compatible controller) communicates over PROFINET to the ET 200SP interface module
  • ET 200SP interface module distributes control data across the backplane bus to all installed I/O modules in the station
  • The 6ES7135-6HD00-0BA1 snaps onto a type A0 or A1 base unit, which provides mechanical seating, terminal connections, and electrical interface to the backplane bus
  • Four analog output terminals on the base unit connect via field wiring to end devices (proportional valves, VFD analog input cards, temperature controllers, or amplifiers)
  • Diagnostic status is reported back upstream to the PLC program via the backplane — 8 bytes of output address space plus 1 byte of QI diagnostics per module

Industries and Applications That Use This Module

In hydraulic and pneumatic control systems, the 6ES7135-6HD00-0BA1 drives up to four proportional directional control valves simultaneously using 0–10V command signals. Each channel manages one valve spool position independently, and the wire-break diagnostic on current channels identifies an open circuit before a valve stalls mid-cycle — a practical advantage on continuous production lines.

Variable frequency drive installations benefit from the current output capability. Outputting 4–20 mA analog setpoints to up to four separate AC drive units enables coordinated ramp-up and ramp-down across multiple motors from a single module slot. The current loop's inherent noise rejection is an advantage in switchgear-dense enclosures where voltage signals would require additional filtering.

Multi-zone thermal management — industrial ovens, furnace systems, and pharmaceutical sterilization chambers — uses the 0–10V output range to drive external temperature controllers on each zone. With four channels, a single 6ES7135-6HD00-0BA1 can manage thermal zones 1 through 4 in a single enclosure, with the 707V isolation type test voltage protecting the module from interference from high-voltage heating elements on the same cabinet rail.

In water and wastewater treatment, the module drives analog setpoints to chemical dosing pumps, flow control valves, and aeration blower drives — applications that require reliable, drift-stable output. The ±0.5% operational error limit across the full temperature range of −30°C to +60°C supports accurate process control even in outdoor or unheated enclosures.

Application Typical Deployment
Proportional valve control 4-channel 0–10V command to hydraulic or pneumatic proportional directional control valves
VFD speed reference 4–20 mA setpoint signals to multiple AC drive units in coordinated motor control systems
Multi-zone temperature control 0–10V setpoints to external temperature controllers in industrial ovens or furnaces
Chemical dosing and flow control Analog reference signals to dosing pump drives and flow control valves in water treatment plants
Test and laboratory automation Position or force feedback signal output to pneumatic or proportional amplifiers in test rigs
Packaging machinery OEM Coordinated analog velocity and position references for servo or stepper amplifier inputs

Key Specifications for Purchase Decision

Specification Value
Catalog Number 6ES7135-6HD00-0BA1
Number of Output Channels 4 (independent)
Output Types Voltage: 0–10V, 1–5V, ±5V, ±10V / Current: 0–20mA, ±20mA
Supply Voltage 24V DC nominal (19.2–28.8V operating range)
Current Consumption 150 mA maximum
Basic Accuracy (at 25°C) ±0.3% of output range
Operational Error (full temp range) ±0.5% of output range
Minimum Cycle Time 5 ms (all channels simultaneously)
Isolation Type Test Voltage 707V DC (channels to backplane bus and power supply electronics)
Compatible Base Units ET 200SP type A0 and A1 only

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

6ES7135-6HD00-0BA1 vs. ET 200SP Analog Output Alternatives

Selecting the correct ET 200SP analog output variant matters before committing to a configuration. The table below covers the directly relevant Siemens alternatives within the ET 200SP family.

Model Descriptor Output Types Channels Best For
6ES7135-6HD00-0BA1 AQ 4xU/I ST Voltage and Current (mixed) 4 Applications requiring both output types on one module
6ES7135-6HL00-0BA1 AQ 4xU ST Voltage only 4 All-voltage field device installations; simpler configuration
6ES7135-6HE00-0BA1 AQ 4xI ST Current only 4 All-current loop installations; noise-sensitive environments
6ES7135-6HA00-0BA1 AQ 8xU ST Voltage only 8 High channel density; voltage-only applications with expanded I/O

If your architecture exclusively drives current loop devices and you want to eliminate voltage output parameterization from the configuration, the 6ES7135-6HE00-0BA1 is the cleaner choice — check current availability for the 6ES7135-6HD00-0BA1 and related variants at LeadTime.ca.

Expert Verdict: Is This the Right Analog Output Module for Your Build?

The 6ES7135-6HD00-0BA1 earns its place in ET 200SP systems where the field device mix demands both voltage and current outputs without dedicating two separate module slots to the task. The ±0.3% basic accuracy and 15-bit (voltage) to 16-bit (current) resolution are well-suited for proportional valve control and drive speed referencing — applications where resolution and repeatability matter more than raw speed. The 5 ms minimum cycle time is adequate for most process and light motion control applications; it is not intended for high-speed servo loops that demand sub-millisecond update rates. The built-in diagnostics — wire-break on current channels, short-circuit on voltage channels, supply monitoring — are genuine time-savers during commissioning and reduce mean time to repair during operation.

Honest limitations worth stating: this module does not generate its own power and requires a stable 24V DC rail to operate. It does not hold a SIL safety rating, so applications requiring functional safety (SIL 1–3) must use separate safety-rated hardware or external logic. Reparameterization, calibration, and Configuration in RUN (CiR) are not supported, which means output range changes require a PLC download — plan for that during system commissioning. If your entire analog output load is current-only or voltage-only, the signal-specific variants (6ES7135-6HE00-0BA1 or 6ES7135-6HL00-0BA1) simplify the TIA Portal configuration tree and may cost marginally less.

From a procurement standpoint, the 6ES7135-6HD00-0BA1 is an actively produced module with no end-of-life announcement as of early 2026 — low obsolescence risk for long-lifecycle production line applications. Typical lead time runs 2–6 weeks depending on regional stock levels and current demand. Volume pricing is available for larger orders. If you are building multiple panels or stocking a maintenance spare, it is worth requesting a volume quote before committing to standard single-unit pricing. If this matches your system requirements, 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 and verification steps for installing the 6ES7135-6HD00-0BA1. For full wiring diagrams and terminal assignment details, refer to the official Siemens manual (A5E03573365-AD).

  • Mount module by snapping onto a confirmed type A0 or A1 ET 200SP base unit — align color code label CC00 facing front; no additional fasteners are required and a mechanical stop confirms seating
  • Connect 24V DC supply to designated module terminals within the 19.2–28.8V operating range; the module includes internal reverse polarity protection but an external upstream circuit breaker is still required — plan for 150 mA maximum current draw and 1.5 W power loss per module in the cabinet heat budget
  • Wire four output channel terminals to field devices; voltage output channels require a minimum load impedance of 2 kΩ per channel, current output channels require a maximum load impedance of 500 Ω — wiring outside these limits will trigger diagnostic alarms or cause output error
  • Keep signal cables physically separated from power wiring to minimize electromagnetic interference; maximum capacitive load per channel is 1 µF and maximum inductive load per channel is 1 mH
  • After power-up, verify the PWR LED shows green and the DIAG LED transitions from red to green within a few seconds; a persistent red DIAG LED indicates a configuration or supply fault requiring resolution before the module will generate valid outputs

How Diagnostics Work and What Engineers Get Wrong

The 6ES7135-6HD00-0BA1 provides active diagnostic monitoring across four categories: supply voltage status (PWR LED and internal alarm), wire-break detection (current output channels only), short-circuit detection (voltage output channels only), and overflow/underflow monitoring per channel. A green channel status LED per output confirms active output operation.

The most common misunderstanding among engineers commissioning this module for the first time is assuming diagnostics operate as automatic safety functions. They do not. Diagnostic alarms — including supply voltage out of range, wire break, and short circuit — must be explicitly handled in the PLC application program. If the user program does not include diagnostic alarm handling logic, faults will be generated but the controller will not take corrective action automatically. Substitute value fallback (configurable per channel) provides a defined safe output level on fault, but this must also be configured deliberately. The module requires 8 bytes of output address space plus 1 byte for QI diagnostics in the system hardware configuration — omitting the QI byte in the address assignment is a common configuration oversight that blocks diagnostic visibility in the PLC program.

Firmware version V1.1 or later is required for full parameterization capability. Earlier functional state (FS) versions have reduced reparameterization support, which can create unexpected behavior if the module is replaced with a different FS unit in the field without firmware verification.

Wrong-Part Prevention Checklist Before You Order

Before placing an order for the 6ES7135-6HD00-0BA1, verify each of the following points against your actual system documentation. This checklist is drawn directly from the technical brief and covers the failure modes most likely to cause a costly module swap-out or installation delay.

  1. Confirm base unit type is A0 or A1 (not A2 or other variants); incorrect type will not mechanically seat
  2. Verify cabinet has 24V DC supply rail (reverse polarity protected on module; external circuit breaker still required)
  3. Check that end devices accept the selected output range (0–10V, ±10V, 0–20mA, ±20mA); voltage and current outputs require load impedance compliance (minimum 2 kΩ for voltage, maximum 500 Ω for current)
  4. Confirm firmware version supports reparameterization requirements (V1.1 or later; older FS versions have limited capability)
  5. Verify isolation voltage requirement against plant safety standard (707V type test minimum)
  6. Check inductive and capacitive load limits for output channel protection (max 1 mH inductive, max 1 µF capacitive per channel)
  7. Ensure module diagnostics are supported in PLC program (diagnostic alarm, wire-break, short-circuit alarms must be handled in application)
  8. Confirm address space allocation in system configuration (module requires 8 bytes of output space plus 1 byte for QI diagnostics)

If any item on this checklist cannot be confirmed against your current system documentation, contact the LeadTime.ca team before ordering — we can help verify compatibility against your configuration details and confirm the correct part number.

Frequently Asked Questions

Can the 6ES7135-6HD00-0BA1 be configured for different output types per individual channel?

The 6ES7135-6HD00-0BA1 supports both voltage and current output ranges — options include 0–10V, 1–5V, ±5V, ±10V for voltage and 0–20mA, ±20mA for current. Output type selection is made during commissioning via TIA Portal parameterization. Based on the official product documentation, output type configuration applies per channel group rather than independently per individual channel — verify your specific firmware version's parameterization options against the Siemens manual A5E03573365-AD before finalizing your system design.

What happens if the 6ES7135-6HD00-0BA1 is installed on an A2 base unit instead of A0 or A1?

The module will not mechanically seat on an A2 base unit. The ET 200SP system uses mechanical coding and color code labels (this module carries CC00) to prevent incorrect installation. Attempting to force-fit the module on an incompatible base unit risks physical damage to the base unit connectors and will prevent the system from operating correctly. Always inspect the base unit part number before module installation.

Does the 6ES7135-6HD00-0BA1 include its own power supply, or does it require an external 24V source?

The module does not generate power internally. It requires a 24V DC supply rail in the cabinet operating within the 19.2–28.8V range. Current draw is 150 mA maximum. An external upstream circuit breaker or fuse is required — the module's internal reverse polarity protection does not substitute for upstream overcurrent protection. Plan for 1.5 W typical power loss per module in the cabinet thermal budget.

How does wire-break detection work, and does it apply to voltage output channels?

Wire-break detection on the 6ES7135-6HD00-0BA1 applies to current output channels only. Voltage output channels use short-circuit detection instead. When a wire-break condition is detected on a current channel, a diagnostic alarm is generated and reported to the PLC program. The module does not automatically switch to a safe state — the diagnostic alarm must be handled explicitly in the PLC application logic, or a substitute value must be pre-configured for that channel to define the fallback output level.

What is the typical lead time for the 6ES7135-6HD00-0BA1, and is it at risk of discontinuation?

Typical lead time is 2–6 weeks depending on regional stock levels and current demand at the time of order. Expedited options may be available at additional cost. The module was released approximately 2016 and remains in active production with no end-of-life announcement as of early 2026, making it a low obsolescence risk for long-term production line applications. For current in-stock status and lead time confirmation, check the product page at LeadTime.ca or contact the team directly.

Can the output range be changed while the PLC is running (Configuration in RUN)?

Configuration in RUN (CiR), reparameterization in RUN, and calibration in RUN are not supported by the 6ES7135-6HD00-0BA1. Any change to output range parameterization requires a full TIA Portal download to the module while the PLC is not in active production mode. Plan for a scheduled maintenance window when output range changes are required, and verify the target firmware version is V1.1 or later to ensure full parameterization capability is available.

Why Source the 6ES7135-6HD00-0BA1 from LeadTime.ca

  • LeadTime.ca ships the 6ES7135-6HD00-0BA1 and related ET 200SP modules worldwide — no geographic restrictions on ordering
  • Volume pricing is available for multi-module panel builds and maintenance spare stocking — request a quote before committing to single-unit pricing
  • Hard-to-find or short-lead-time industrial automation parts are a core sourcing focus — the team can advise on alternatives if the primary part is on extended lead time
  • Direct contact with the LeadTime.ca team for pre-order compatibility checks reduces the risk of ordering an incorrect base unit type or firmware variant
  • Fast response on quote requests for procurement specialists working against project schedules

At-a-Glance Summary

  • Catalog number 6ES7135-6HD00-0BA1 — SIMATIC ET 200SP Analog Output Module AQ 4xU/I ST
  • Four independent analog output channels supporting voltage (0–10V, ±10V, 1–5V, ±5V) and current (0–20mA, ±20mA) output types
  • Basic accuracy ±0.3% of output range at 25°C; operational accuracy ±0.5% across full −30°C to +60°C temperature range
  • Minimum cycle time of 5 ms for all four channels simultaneously
  • Compatible with ET 200SP base unit types A0 and A1 only — not compatible with A2 or other variants
  • Requires 24V DC supply rail (19.2–28.8V), 150 mA maximum current draw, 1.5 W typical power loss
  • Isolation type test voltage 707V DC between channels and backplane bus
  • Built-in wire-break detection (current channels), short-circuit detection (voltage channels), and supply voltage monitoring
  • Address space: 8 bytes output + 1 byte QI diagnostics; firmware V1.1 or later required for full parameterization
  • Physical dimensions: 133 mm wide × 58 mm deep; weight 31 g
  • Active production as of early 2026; typical lead time 2–6 weeks; low obsolescence risk