The Allen Bradley 1756-IB16ISOE is a ControlLogix Digital I/O Module. This digital input module has 16 inputs available which are all individually isolated. This module requires a removable terminal block housing, or RTB, of either 1756-TBCH or 1756-TBS6H.
The 1756-IB16ISOE is known as a Sequence of Events module, where event times are reported in either UTC (universal time coordinated) or CST (coordinated system time) format. The sequence of events modules timestamps information in under a millisecond. This feature will register a time in relation to a change in the input data. All of this occurs on a per-point basis. It also provides basic ON/OFF detection, a feature common to other ControlLogix modules.
The operating voltage range of this module is from 10 to 55V DC with a nominal input voltage of 24V DC and a voltage category of 24/48V DC sink/source. It has a current draw of 320 mA at 5.1V and 2mA at 24V, with a total backplane power of 1.7W. The thermal dissipation of this module is 17.22 BTU/hour while power dissipation is 5.5 W at 60 Degrees Celsius. The on-state current for this module varies from 2.0 mA at 9V DC to 5.1 mA at 48 to 55V DC, although the nominal current is 4.5 mA at 4 to 31V DC. The maximum off-state current is 1.5 mA and the maximum voltage is 5V.
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| Manufacturer | Rockwell Automation |
| Brand | Allen Bradley |
| Part Number/Catalog No. | 1756-IB16ISOE |
| Series | ControlLogix |
| Module Type | Digital DC Isolated Input Sequence of Events |
| Inputs | 16 Individually Isolated; Sequence of Events |
| Input Voltage | 24-48 Volts DC Sink-Source |
| Operating Voltage Range | 10-55 Volts DC |
| Input Delay Time | 50 microseconds plus selected filter time |
| Minimum Operating Current | 5.5 milliamperes at 55 Volts DC |
| Maximum Operating Current | 2 milliamperes at 10 Volts DC |
| Maximum Input Current, Off-State | 1.5 milliamperes |
| Power Dissipation (Max) | 5.5 Watts at 60 degrees Celsius |
| Backplane Current at 5 Volts | 275 milliamperes |
| Backplane Current at 24 Volts | 2 milliamperes |
| Removeable Terminal Block(s) | 1756-TBCH, 1756-TBS6H |