Siemens SIMATIC S7-400 6ES7450-1AP00-0AE0 FM 450-1 Counter Module

Product Overview

The 6ES7450-1AP00-0AE0 FM 450-1 is a dedicated counting module for the SIMATIC S7-400 platform.
It enables precise speed and position measurement in demanding automation tasks.

Key Highlights

• Brand: Siemens
• Series: SIMATIC S7-400
• Module type: FM 450-1 Function Module
• Dual independent counting channels
• Designed for fast and accurate motion signals

Electrical Power Design

• Rated auxiliary voltage: 24 VDC
• Operating range: 20.4 to 28.8 VDC
• Dynamic tolerance: 18.5 to 30.2 VDC
• Reverse polarity protection on load inputs
• Typical power loss: 9 W
• Backplane current at 5 VDC: up to 450 mA

Encoder Supply Capability

• 5 V encoder output: 5.2 V ±2%
• 5 V output current: up to 300 mA
• 24 V encoder output: derived from 1L+
• 24 V output current: up to 300 mA
• Short-circuit protection on all supplies

Counting Performance

• Number of counter inputs: 2
• Counter width: 32-bit or ±31-bit
• RS-422 differential input at 5 V
• Maximum count frequency at 5 V: 500 kHz
• Maximum count frequency at 24 V: 200 kHz
• Minimum pulse width: 2.5 µs

Digital Inputs and Outputs

• Digital inputs: 6 total
• Functions include start, stop, and reset
• Input current for logic high: approx. 9 mA
• Digital outputs: 4 protected channels
• Rated output current: 0.5 A per channel
• Fast output response: up to 300 µs

Isolation and Safety

• Optocoupler isolation on inputs and outputs
• Optocoupler isolation on counter channels
• Test voltage: 500 V isolation strength
• Permissible potential difference: 75 VDC

Diagnostics and Status

• Integrated diagnostic functions
• Readable diagnostic data via CPU
• 14 green LEDs for signal status
• 2 red LEDs for fault indication
• Supports hardware interrupts

Mechanical Design

• Module width: 25 mm
• Height: 290 mm
• Depth: 210 mm
• Weight: approx. 650 g
• Front connector: 48-pin required

Main Product Advantages

• High-speed counting improves motion accuracy
• Dual channels reduce hardware cost
• Strong isolation increases system safety
• Clear LED feedback speeds troubleshooting
• Long service life in industrial plants

Typical Applications

• Packaging machines
• Conveyor speed monitoring
• Cut-to-length systems
• Rotary indexing tables
• General motion measurement tasks

Buying Guide

• Check S7-400 rack compatibility
• Confirm encoder voltage type
• Verify required counting frequency
• Plan isolation needs early
• Select correct front connector

FAQ

• Can this module handle very fast encoders?
  • Yes. It supports up to 500 kHz at 5 V.
• Is the module suitable for noisy environments?
  • Yes. Differential inputs and isolation improve noise immunity.
• Does it reduce CPU load?
  • Yes. Counting is processed locally in the module.
• What is a common setup mistake?
  • Wrong encoder voltage selection during wiring.
• Is this module future-proof?
  • Yes. It fits long-life S7-400 installations.

Warranty and Shipping

• Warranty period: 12 months
• Careful industrial packaging
• Shipping via FedEx, UPS, or DHL

Contact Information

• Email: info@oiltechcontrols.com
• Phone: +86 158 8020 0923

Copyright © 2025 Oiltech Controls Limited. All rights reserved.

Partner
PLCDCS HUB Limited ,
Powergear X Automation Limited
All rights reserved.