The Allen-Bradley 1746-SIM is a dedicated diagnostic module engineered for the SLC 500 control system. This input simulator provides a practical method for testing and validating PLC ladder logic programs during the commissioning phase. By utilizing 16 integrated toggle switches on the front face, operators can manually actuate input bits, effectively mimicking the signal behavior of field devices such as sensors, limit switches, and pushbuttons without needing an active field wiring installation.
This module is primarily utilized in laboratory environments, factory floor testing, and system commissioning. It is an essential tool for programmers to debug complex ladder logic sequences or verify operator interface responses before connecting the PLC to live field hardware.
| Brand | Allen-Bradley |
| Product Series | SLC 500 |
| Module Type | Input Simulator |
| Channel Count | 16 |
| Voltage Category | 24V DC |
| Backplane Current (5V DC) | 215 mA |
| Update Time | 2 ms |
| Operating Temperature | 0 to 60 degC |
| Storage Temperature | -40 to 85 degC |
| Humidity | 5% to 95% (non-condensing) |
No. The 1746-SIM is strictly designed for 24V DC sinking and sourcing modules. Attempting to use it with AC modules will cause equipment failure and poses a significant safety hazard.
The 1746-SIM draws its required operating current (215 mA) directly from the SLC 500 backplane.
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