3704E Triconex DCS Analog Input Module

• Brand
  Triconex
• Model
  3704E
• Product Name
  3704E TMR High-Density Analog Input Module
• Place of Origin
  United States
• HS Code
  8537209000
• Dimensions
  266 mm × 205 mm × 120 mm
• Weight
  2.0 kg
• Operating Temperature
  -20 °C to +60 °C
• Storage Temperature
  -40 °C to +85 °C
• Power Supply
  24vdc
• Warranty
  12 month
• Product Status
  New and original

Triconex 3704E Wiring Method

The Triconex 3704E module adopts backplane internal connection + external terminal board wiring design with no direct field wiring on the module.

1. Internal Rack Wiring

It connects to the Tricon rack backplane via gold-plated locking connectors for power and TMR bus data transmission. It supports hot-swap and features anti-misplug protection.

2. External Field Wiring

All 64 analog input channels connect to field sensors through dedicated Triconex termination boards. Use shielded twisted-pair cables with screw-locked terminals for stable connection. Cable shields apply single-point grounding to avoid ground loop interference.

3. Communication Wiring

No independent external communication wiring is needed. Data and diagnostic signals are transmitted to the main controller via the rack internal backplane bus.

Triconex 3704E Voltage & Current Specifications

1. Rack Backplane Power Supply

Nominal operating voltage: 24 VDC

Allowable input voltage range: 16–32 VDC

Typical power consumption: 12 W

2. Field Analog Input Voltage

Native signal range: software-selectable 0–5 VDC or 0–10 VDC

Continuous overvoltage protection: 150 VDC / 115 VAC

Input impedance: 30 kΩ typical

3. Field Analog Input Current

No direct 4–20 mA input; support 0–20 mA signal with external shunt resistors

250Ω resistor converts 0–20mA to 0–5VDC

500Ω resistor converts 0–20mA to 0–10VDC

• 
  Triconex 3704E datasheet pdf
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