B&R 7AT664.70 (AT664) analog input module
$ 111.79
Description
B&R 7AT664.70 (AT664) analog input module. The B&R 7AT664.70 (also known as the AT664 ) is an analog input module specifically designed for the B&R System 2003 PLC family. Model Number 7AT664.70 (or 7AT664.70-1). Unlike standalone I/O modules, the 7AT664.70 is a screw-in module. The B&R 7AT664.70 (also known as the AT664 ) is an analog input module specifically designed for the B&R System 2003 PLC family. It is a high-precision module used primarily for temperature measurement via thermocouples. ## Technical Specifications Feature Specification Model Number 7AT664.70 (or 7AT664.70-1) Input Type Thermocouple (4 channels) Supported Sensors Types J, K, N, S, B, R, T, E Measurement Range -270°C to +1768°C (depending on sensor type) Resolution 16-bit Noise Suppression 50 Hz (Standard) Module Type Screw-in module (slots into a CP unit) Power Supply Internal via the System 2003 bus ## Critical Hardware Requirements Unlike standalone I/O modules, the 7AT664.70 is a screw-in module . This means: Installation: It must be plugged into a base CPU (like the CP476 you mentioned earlier) or a remote I/O bus controller that has screw-in slots. Terminal Block: It requires a separate 12-pin terminal block for wiring. The compatible models are: 7TB712.9 (Standard screw clamp) 7TB712.91 (Cage clamp / spring terminal) ## Common Troubleshooting & Status Red LED (Error): Usually indicates a wire break or an "Overflow/Underflow" error (temperature reading out of range for the selected sensor type). Configuration: In Automation Studio , you must manually configure the "Sensor Type" for each channel. If the configuration doesn't match the actual thermocouple connected, the readings will be wildly inaccurate or default to an error state. Cold Junction Compensation: The module has built-in compensation, but for maximum accuracy, ensure the terminal block is seated firmly and not exposed to direct drafts.
