Bachmann CNT204/R Counter and Encoder Module
Configured for high-speed pulse counting and incremental encoder evaluation in Bachmann M1 Automation System architectures, the Bachmann CNT204/R, also cataloged as the CNT204/R Counter and Encoder Module, provides direct physical/electrical execution.
Suffix Breakdown & Model Matrix
| Part Number | Counter Inputs | Incremental Encoder Inputs | Period/Differential Resolution | Operating Temperature Range |
|---|---|---|---|---|
| CNT204/R | 4 Channels (Single-Line) / 2 Channels (Encoder Mode) | 2 Channels (RS-422 Differential) | 42 ns | -30 to +60 deg C |
| CNT204/R CC | 4 Channels (Single-Line) / 2 Channels (Encoder Mode) | 2 Channels (RS-422 Differential) | 42 ns | -30 to +60 deg C (ColdClimate Conformal Coating) |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | CNT204/R |
| Brand | Bachmann |
| Origin | Austria / EU |
| Weight | 0.15 kg |
| Dimensions | Standard M1 Module Form Factor |
| Operating Temp | -30 to +60 deg C |
| Power Consumption | 40 mA at 24 VDC (+ 1.2 x Encoder Supply Load) |
| Counter Inputs | 4 Channels (Single-Line Pulse Generators) |
| Incremental Encoder Inputs | 2 Channels (RS-422 Differential: A-, A+, B-, B+, N-, N+) |
| Counter Resolution | 32-bit |
| Max Input Frequency | 20 kHz (Single-Line Counter) / 1 MHz (RS-422 Encoder) |
| Signal Evaluation | 1x, 2x, 4x Quadrature Edge or Pulse/Direction |
| Time Base Resolution | 42 ns (Period and Differential Phase Measurement) |
| Onboard Encoder Power Supply | +5 VDC (200 mA), +24 VDC (300 mA), Short-Circuit Proof |
| Input Voltage Range | 18 to 34 VDC (Reverse Polarity Protected) |
| Isolation Voltage | Galvanic Isolation |
Backplane Bus Communication Velocity & Determinism
The Bachmann CNT204/R interfaces directly with the M1 backplane bus to ensure deterministic transfer of 32-bit counter values and period data to the central processing unit. Integrated FPGA hardware handles 42 ns high-resolution time stamping and phase-difference processing independently, eliminating backplane traffic overhead while preserving system velocity. Firmware flash compatibility across M1 CPU models guarantees seamless synchronization of quadrature edge transitions (1x, 2x, 4x) without data loss during rapid speed shifts.
Frequently Asked Questions
Q: How does selecting RS-422 incremental encoder mode impact the available single-line counter channel count?
A: Utilizing the 2 RS-422 incremental encoder input channels uses shared internal hardware resources, reducing the active single-line counter capacity from 4 channels down to 2 channels.
Q: What protection measures exist on the internal encoder power supply terminals?
A: The onboard +5 VDC (200 mA) and +24 VDC (300 mA) power outputs feature short-circuit proof protection circuitry to safeguard internal module electronics from field wiring faults.
Field Installation Guidelines
Ensure backplane supply power and field supply voltages are switched off prior to installing or removing the CNT204/R card from the M1 chassis rail. Mount the module vertically to optimize passive air convection across the enclosure housing. All high-frequency encoder wiring (A, B, N signal pairs) must use shielded twisted-pair cables terminated directly at the front terminal block. Maintain physical separation between high-frequency encoder lines and high-voltage AC power conductors. Ground the cable shield at the cabinet earth rail via a low-impedance clamp to preserve galvanic isolation boundaries and prevent differential phase distortion.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
Recently Viewed
Express Shipping
Extensive Inventory
Quality Assurance
