Allen Bradley 1756-IF8H ControlLogix 8 Point A/I HART Module
The 1756-IF8H is an analog input module that is part of Allen-Bradley’s Logix controller platform. This module features Eight (8) differential voltage or current input channels and One (1) Highway Addressable Remote Transducer (HART) modem. Each channel is configurable for 0-20 mA and 4-20 mA input signals while configurable voltage input signals are +/-10 VDC; 0-5 VDC; 1-5 VDC and 0-10 VDC. This module has a resolution of 16 - 21bits.It comes with an open-circuit detection time of 5 seconds and overvoltage protection of 30 VDC and 8 VDC for voltage and current signal configuration, respectively. This module is a single-width module, therefore, occupies a single slot of a 1756 chassis. It can be part of a local I/O or distributed I/O system. The 1756-IF8H has a HART scan time of 18...488 ms and 1 second if HART enabled while with all channels HART activated, the estimated scan time is 10 seconds. Module passthrough configuration and communication to HART communication and devices may significantly increase scan time. The 1756-IF8H uses successive approximation as input conversion method while output conversion method is via R-Ladder DAC, monotonicity with no missing codes.
Technical specifications for 1756-IF8H
Manufacturer:Rockwell Automation
Brand:Allen-Bradley
Part Number/Catalog No.:1756-IF8H
Manufacturer:Rockwell Automation
Series:ControlLogix
Brand:Allen-Bradley
Module Type:Hart Analog Input Module
Series:ControlLogix
Channels:8 Differential
Module Type:Analog Input Module with HART capability
Backplane Current (5.1 Volts DC):300 milliamps
No. of Inputs:Eight (8) Differential input channels
Backplane Current (24 Volts):70 milliamps
Input signal:Current: 0-20 mA; 4-20 mA Voltage: +/-10VDC, 0-5 VDC, 1-5 VDC and 0-10 VDC
Power Dissipation (Max):3.21-4.01 Watts
Resolution:16 - 21 Bits
Thermal Dissipation:13.7 BTU per hour
Accuracy Voltage:0.1% of range Current: 0.3% of range
Resolution:16-21 bits
Data Format:Integer mode (left justified, 2 s complement) IEEE 32-bit floating point
Enclosure:Open
Input conversion method:Successive approximation
Output conversion method:R-Ladder DAC, monotonicity with no missing codes
Removable terminal block:1756-TBCH; 1756-TBS6H
Current Draw:300 mA @ 5.1 VDC and 135 mA @ 24 VDC.
Open circuit detection time:Positive full scale reading within 5 s
Overvoltage protection, max Voltage:30V DC Current: 8V DC
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