| Customization: | Available |
|---|---|
| Task: | Adjust |
| Structure: | Combination |
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The 1756-IF6I is an Isolated Analog Voltage/Current Input Module. It has Six (6) individually isolated inputs and is part of the ControlLogix system. This module requires either the 20-pin 1756-TBNH or 1756-TBSH Removable Terminal Block (RTB) before it can be wired with input signals. You can choose between two data formats for the 1756-IF6I: the integer mode and the floating-point mode. It has 16 significant bits and you can select which range to use for every channel on your module among the series of operational ranges. The available ranges and their respective resolutions are as follows: +/- 10.5 Volts has 343 ?Volt/count, 0 to 10.5V has 171 ?Volt/count, 0 to 5.25 Volts has 86 ?Volt/count, and 0 to 21 milliamps has 0.34 ?A/count. When the isolated input module is operating beyond the limits set by the input range, the under-range/over-range detection feature will be activated. Line noise in your application in each channel can be removed using the module's **analog-to-digital converter. Since each filter time affects the response time of your module and the highest frequency notch filter settings, limit the effective resolution of the channel. Remember to choose the notch filter that is the closest match to the anticipated noise frequency. A digital filter is also present and this smoothens out input data noise transients on each input channel. Real-time sampling, or RTS, is another feature of the 1756-IF6I. When you configure a module, you need to set a requested packet interval (RPI) period and a real-time sampling (RTS) period. Once these parameters are set, the module will scan its input channels and collect all available data and after scanning, the module will then multicast the data. It also has a wire off detection feature that triggers when a wire has been disconnected from a channel or when an RTB has been removed from the module. Additionally, the 1756-IF6I is equipped with rate alarm for applications using the floating-point mode. This monitors the rate of change between input samples. Each channel exceeding the specified trigger point for that channel will produce an alarm. Process alarms are also present and are triggered when the module has exceeded its configured high or low limits for every channel.
| Part Number/Catalog No. | 1756-IF6I |
|---|---|
| Series | ControlLogix |
| Module Type | Analog Input |
| Inputs | 6-Points, Isolated |
| Conversion Method | Sigma-Delta |
| Data format | Integer mode (left justified, 2 s complement) IEEE 32-bit floating point |
| Input signal Range | ±10.5V, 0 -10.5V, 0-5.25V and 0-21 mA |
| Input Resolution | 16 bits 10.5V: 343 ?V/bit 0…10.5V: 171 ?V/bit 0…5.25V: 86 ?V/bit 0…21 mA: 0.34 ?A/bit |
| Backplane Current (5Volts) | 250 mA |
| Backplane Current (24Volts) | 100 milliamps |
| Power Dissipation (Max) | Voltage: 3.7 W Current: 4.3 W |
| Removeable Terminal Blocks | 1756-TBNH 1756-TBSH |
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