Products Specifications
| Attribute | Value |
|---|---|
| Typical AC Signal Delay (Off) | 45 ± 15 ms |
| Wiring Arm | 1771-WH |
| External Power Required | No |
| Backplane Current | 800 mA |
| Current Range | N/A |
| Voltage Range | 100 Ohms platinum, 10 Ohms other |
| Channel Update/Resolution | 50 ms / 8 channel; 16 bits + sign (1.0 °C / 1.0 °F per bit) |
| Data Format | Natural Binary, BDC Actual Temperature, or Ohm Readings |
| Number of Inputs & Outputs | 6 Three-Wire RTD Inputs |
| Module Type | RTD Input |
| Mounting | Rack Mountable |
The Allen Bradley 1771-IR is a PLC5 RTD (Resistance Temperature Detector) input module designed for precise temperature measurement. It provides six (6) input channels compatible with both Copper and Platinum RTD types. The module supports temperature readings in Celsius and Fahrenheit and features a channel scan time of 50 ms for all six inputs.
Contact Information
Our address
32D floor, Guomao Building, No.388, Hubin South Road, Siming District, Xiamen
Phone Number(Wechat/Whatspp)
+ 86 18030132586
cn@mooreplc.com
Installation Guide
1. The processor transfers your configuration data and calibration values to the module using a block transfer write instruction.
2. External devices generate analog signals that are transmitted to the module.
3. The module converts analog signals into binary or BCD format, and stores theses values until the processor requests their transfer.
4. When instructed by your ladder program, the processor performs a read block transfer of the values and stores them in a data table.
5. The processor and module determine that the transfer was made without error, and that input values are within specified range.
6. Your ladder program can use and/or move the data (if valid) before it is written over by the transfer of new data in a subsequent transfer.
7. Your ladder program should allow write block transfers to the module only when enabled by the operator at power–up.
Related Modules
| Module Type and Catalog Number | Module Series | Use of Data Input Image Bits |
|---|---|---|
| DC Input Modules | ||
| 1771-IB Module | A | 8 |
| 1771-IBD Module | B | 16 |
| 1771-IBN Module | C | 32 |
| 1771-IC Module | A | 8 |
| 1771-ICD Module | B | 16 |
| 1771-IG Module | A | 8 |
| 1771-IGD Module | A | 16 |
| 1771-IH Module | A | 8 |
| 1771-IQ Module | B | 8 |
| 1771-IQ16 Module | B | 16 |
| 1771-IT Module | A | 8 |
| 1771-IV Module | A | 8 |
| 1771-IVN Module | C | 32 |
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