Product Overview
This analog input module captures process signals from temperature, pressure, and flow transmitters. Industrial facilities require high-precision measurements for effective closed-loop control strategies. The 7TS4022-1/BB offers eight differential input channels with programmable ranges and filtering. Its 15-bit resolution captures minute signal variations with exceptional clarity. Automation engineers can configure each channel individually for various sensor types. The module’s robust isolation architecture eliminates troublesome ground-loop interference.
Technical Specifications
| Parameter | Specification |
|---|---|
| Input Channels | 8 differential, isolated |
| Input Ranges (configurable) | 0–10 V, 0–5 V, ±10 V, ±5 V, 0–20 mA, 4–20 mA |
| Input Impedance | >10 MΩ (voltage mode), 250 Ω (current mode) |
| ADC Resolution | 15-bit plus sign |
| Accuracy at 25°C | ±0.05% of full scale |
| Temperature Drift | ±30 ppm/°C |
| Common-Mode Voltage | ±50 V maximum |
| Common-Mode Rejection | >110 dB at 50/60 Hz |
| Sampling Rate | 60 Hz per channel (simultaneous) |
| Filter Options | 4-pole digital low-pass (selectable) |
| Isolation | 2500 VAC (channel-to-system) |
| Overload Protection | ±40 V continuous, ±50 V transient |
| Supply Voltage | 24 VDC ±25% (from backplane) |
| Power Consumption | ≤4.2 W |
| Operating Temperature | –25°C to +70°C |
| Storage Temperature | –40°C to +85°C |
| Dimensions (W x H x D) | 42 mm x 128 mm x 130 mm |
| Weight | 0.38 kg |
| Termination | Spring-cage or screw-clamp (option-dependent) |
Signal Acquisition and Conversion
The 7TS4022-1/BB employs a sigma-delta ADC for each differential input channel. This converter architecture delivers excellent linearity and minimizes quantization noise. Precision voltage references ensure stable performance regardless of supply fluctuations. The module performs automatic zero and span calibration at every power-on sequence. Each channel includes programmable gain amplifiers for optimal signal utilization.
Flexible Input Configuration
Users can assign different input ranges and filter settings to each channel independently. The module accepts both voltage and current signals with no external component changes. Thermocouple and RTD inputs require only a configuration parameter change. The unit stores all configuration data in EEPROM for rapid system restart. Real-time scaling automatically converts raw ADC counts to selected engineering units.
Noise Rejection and Signal Integrity
A four-pole digital low-pass filter attenuates high-frequency noise effectively. Software-selectable rejection frequencies target 50 Hz and 60 Hz line interference. Common-mode rejection exceeds 110 dB to block noise from shared cables. The module’s differential inputs cancel voltage drops along long field wiring. Shielded terminal blocks further reduce electromagnetic interference pickup.
Diagnostic and Health Monitoring
Individual status LEDs indicate input overload, open-circuit, and out-of-range conditions. A global module status LED reports communication and power supply health. The unit performs continuous self-monitoring of reference voltages and temperature. Diagnostic data includes minimum and maximum captured values for process trending. Users can initiate a loop-back test through the system software interface.
Mechanical Installation and Field Wiring
The 42-millimeter housing occupies minimal DIN-rail space within control cabinets. Optional screw-clamp or spring-cage terminals accommodate solid and stranded wires. The module weighs 380 grams and requires no additional mounting hardware. Color-coded terminal markers simplify channel identification for field electricians. All field connections face forward for easy access during commissioning and maintenance.
Details
| Weight | 0.38 kg |
|---|---|
| Dimensions | 42 × 128 × 130 mm |
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