
SLC 16 Point Digital Input Module
The Allen-Bradley 1746-ITV16 is an SLC 500 discrete input module. This module is specifically a high-speed input module that operates at a voltage range of 10-30 VDC and nominal input voltage of 24VDC. It supports source wiring configuration and ideally used with signaling devices that operates with high frequency, binary or ON/OFF switching such as encoders, totalizers, data loggers, counters and similar devices. It may be used in position monitoring and control of conveyors.
Application Areas

- Process industry temperature monitoring: The 1746-ITV16 module is designed for industrial temperature measurement and supports J, K, T, E, R, S, and B type thermocouple inputs. It is widely used in chemical reactors, metallurgical heating furnaces, food sterilization equipment and other scenarios to achieve ±0.1% accuracy temperature closed-loop control. After a petrochemical enterprise adopted this module, the reaction temperature fluctuation range was reduced by 40%.
- Energy equipment status monitoring: In key equipment such as generator sets and boiler systems, the module's 16-channel high-density configuration can simultaneously monitor multiple point temperatures (such as bearings, windings, exhaust, etc.). Combined with the cold end compensation function, the data reliability has passed ISO 15839 certification, which helps predictive maintenance.
- Laboratory precision measurement system: The module's millivolt signal acquisition capability (minimum 15μV resolution) meets the ultra-precision temperature measurement requirements of scenarios such as material research and drug development. It is integrated with the SLC 500 controller through the 1746 backplane to replace the traditional instrument cabinet and save 60% of the installation space.
Technical specifications
| Module Type | Fast response discrete input module |
| Series | SLC 500 |
| Part Number/Catalog No. | 1746-ITV16 |
| Manufacturer | Rockwell Automation / Allen-Bradley |
| Product Family: | PowerFlex 400 |
| Nom Input Voltage | 24VDC |
| Input Voltage Range | 10-30 VDC |
| Wiring configuration | Source wiring configuration |
| Backplane current consumption | 0.085 A |
| Signal delay, max. | On = 0.3 ms; Off = 0.5 ms |
| Off-state Voltage, max | 5VDC |
| Off-state current, max | 1.0 mA |
| Nominal input current | 8 mA at 24VDC |
| Voltage Range | 10-30 Volts DC Source |
| Inputs | 16 |
| Backplane Current (5 Volts DC) | 85 milliamps |
| Signal delay | 0.3 or 0.5 milliseconds |
| Off State Current | 1.5 milliamps |
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