1756-IT6I AB
About 1756-IT6I
Allen Bradley 1756-IT6I is a ControlLogix analog input module. This input module is dedicated to millivolt inputs for thermocouple and temperature measurement. This module supports installation into any ControlLogix chassis, whether it is a local or remote I/O rack. It is compatible with any CotrolLogix processor and communication module.
This module is compatible with B, E, J, K, R, S, T, N, C, D, L (TXK/XK) type thermocouples. The effective input range of this module is -12 to 78 mV, and the high-resolution range is -12 to 30 mV. The resolution of this module is 16 bits, which is 1.4 for -12… 78 mV? V/bit (typical value), 0.7 for -12… 30 mV? V/bit high-resolution range. In addition, for -12… 30 mV, low signal and user counts are 15.80323 mV and -32768 counts, while high signal and user counts are 31.396 mV and 32767 counts. For -12… 78 mV, low signal and user counts are -15.15836 mV and -32768 counts, while high signal and user counts are 79.241 mV and 32767 counts.
The module scanning time is relatively fast and varies depending on the data format and signal type. For millivolt inputs, the scan time is 25 ms minimum floating point and the integer is 10 ms minimum. For floating-point formats, the scanning time is at least 50 milliseconds.
Compatible data formats are integer mode, left aligned, 2s complement, and IEEE 32-bit floating point numbers.
Allen Bradley 1756-IT6I is a temperature sensing analog module. It has six (6) independently isolated thermocouple input channels. It requires 1756-TBNH or 1756-TBSH detachable terminal blocks (RTBs) for signal wiring. For local CJC, the accuracy is+/-0.3 to 3.2 degrees Celsius, depending on the channel, while for remote CJC, the accuracy is+/-0.3 degrees Celsius.
his module has multiple input ranges, notch filters, real-time sampling, underrange/over range detection, digital filters, process alarms, rate alarms, 10 ohm offset, wire break detection, sensor type, temperature units, input signal to user count conversion, and wire length calculation. This module stores the received signal in two (2) data formats, such as integer or floating-point mode. The available input range is -12 to 78 millivolts -12 to 30 millivolts for high-resolution range. It has a 16 bit resolution of -12 to 78 millivolts: 1.4 microvolts per unit, with a typical range of 12 to 30 millivolts: 0.7 microvolts per unit. High resolution range. It has a maximum overvoltage protection of 120 V AC/DC. The models of thermocouple type modules are B, E, J, K, R, S, T, N, C, D, and L (TXK/XK). It has thermocouple linearization of ITS-90.
