Allen  Bradley    1746-BTM  !!!  --- sales3@amikon.cn  

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The Allen Bradley 1746-BTM is a Barrel Temperature Control Module for the  SLC 500 system. It is an intelligent I/O module that accommodates 4 zones of autotuned heat/cool PID loops for temperature control applications. Each of its 4 analog inputs functions as the controlled variable (C) for a PID loop. For each of the loops, a tuning-assisted process (TAP) algorithm and a PID algorithm are performed on the module; the manipulated variable (M) output of each loop, either as a numeric value or as a time-proportioned output (TPO) signal is sent from the module to the SLC processor’s data table. A ladder logic can send either the TPO signal to a digital output module or the M numeric value to an analog output module to close the loop.

The 1746-BTM has 4 backplane and channel-to-channel isolated inputs with a backplane current load of 110 mA at 5 Volts and 85 mA at 24 Volts. Its thermocouple analog inputs with input voltage are -50 to 50 mV and -100 to 100 mV. Its A/D conversion process uses Sigma-Delta modulation, and it has a 16-bit resolution and a 16-bit signed integer data format. It has a 1000 Volt isolation voltage and an 8 Hertz channel bandwidth. 

For connection, a 1746-RT32 I/O module can be used. This unit uses a single slot for installation in an SLC 500 chassis and provides self-calibration, auto-tuning of PID loops (optimized for tuning barrel temperature control loops), self-diagnostics and detection of input open-circuit including thermocouple break. It is compatible with all SLC 500 processors except SLC 5/01 processor.

Allen  Bradley  1746-BTM

1746-BTM | Allen Bradley | Barrel Temperature Control Module

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