6ES7350-1AH03-0AE0 Siemens FM 350-1 Counter Module S7-300

6ES7350-1AH03-0AE0 Siemens SIMATIC S7-300 FM 350-1 Counter Module

Key Technical Specifications

• Brand: Siemens
• Model: 6ES7350-1AH03-0AE0
• Category: Counter module / function module
• Series: SIMATIC S7-300, FM 350-1
• Number of Channels: 1 counter channel, 32 bit or ±31 bit
• Counting Frequency: Up to 500 kHz for 5 V encoders, 200 kHz for 24 V encoders
• Supply Voltage: 24 V DC rated, 20.4 V to 28.8 V permissible
• Dynamic Voltage Range: 18.5 V lower, 30.2 V upper
• Input Current: 40 mA max from load voltage, 160 mA max from backplane bus
• Power Loss: 4.5 W typical
• Digital Inputs: 3, for gate start, gate stop, and counter set
• Digital Outputs: 2, rated 0.5 A each
• 5 V Encoder Supply: 5.2 V ±2 %, max. 300 mA
• 24 V Encoder Supply: 1L+ (-3 V), max. 400 mA
• Frequency Response: Fast counting up to 500 kHz with RS 422 input
• Sensitivity: Differential input voltage of 1.3 V for 5 V encoders
• Linearity: Stable 32-bit counting across the full range
• Resolution: 32-bit counter resolution
• Temperature Range: 0 °C to 60 °C operating
• Environmental Tolerance: Resists dust, vibration, and industrial EMI
• Anti-Interference: Optocoupler isolation between channels and backplane bus
• Isolation: Tested with 500 V
• Dimensions: 40 mm width, 125 mm height, 120 mm depth
• Weight: Approx. 250 g

Counter and Encoder Details

• The 5 V counter input uses RS 422 with a 220 Ω terminating resistor.
• The 24 V counter input accepts signal "0" from -28.8 V to +5 V.
• The 24 V counter input accepts signal "1" from +11 V to +28.8 V.
• The minimum pulse width for 24 V counting reaches 2.5 µs.
• Symmetrical incremental encoders work with two pulse trains offset by 90°.
• Asymmetrical incremental encoders and 24 V initiators also connect easily.
• A 24 V directional element supports one pulse train and one direction level.
• Digital inputs draw about 9 mA typical at signal "1".

Digital Output Behavior

• Outputs provide short-circuit protection with electronic clocking.
• Signal "0" stays at 3 V maximum, while signal "1" reaches at least 2L+ minus 1.5 V.
• Rated output current is 0.5 A, with a permissible range of 5 mA to 0.6 A.
• Output delay with resistive load measures 300 µs maximum from "0" to "1".
• Inductive shutdown voltage limits to 2L+ minus 39 V.

FAQ

• Q: What is the maximum counting frequency of the 6ES7350-1AH03-0AE0?
  A: It reaches 500 kHz with 5 V encoders and 200 kHz with 24 V encoders.
• Q: How many counter channels does this FM 350-1 module have?
  A: It offers one counter channel with 32-bit or ±31-bit counting.
• Q: Which encoders can I connect to this module?
  A: You can connect 5 V and 24 V incremental encoders, plus 24 V initiators.
• Q: Does the module support isochronous mode?
  A: Yes, it supports isochronous mode for synchronized automation tasks.
• Q: What front connector does the FM 350-1 require?
  A: It requires one 20-pin front connector for all field wiring.
• Q: How much encoder supply current does the module provide?
  A: It supplies up to 300 mA at 5 V and up to 400 mA at 24 V.
• Q: Is the module isolated from the backplane bus?
  A: Yes, optocouplers separate the channels and backplane bus.
• Q: What is the operating temperature range?
  A: The module operates from 0 °C to 60 °C.
• Q: How fast do you ship this product?
  A: We keep stock and ship within 5 days using DHL, FedEx, or UPS.
• Q: Do you accept returns?
  A: Yes, we support 30-day returns under our standard return policy.

Contact Information

• Inquiries: sales@nex-auto.com
• WhatsApp: +86 153 9242 9628
• Partner NexAuto Technology Limited: https://www.nex-auto.com/