Allen-Bradley 1771-SIM

The 1771-SIM Module is an input simulation and output indicating module. It can be inserted into any 1771 Universal I/O chassis. The switches on this single-slot module simulate open/close devices; the LEDs identify which outputs are active.

Typical uses include: testing programs for proper response to a specified input, testing programs for sending signals to user- defined outputs, replacing manual input devises such as temporary switch-and-wire setups; has eight switches, one for each input, replacing temporary output test lamps; has eight built-in LEDs, one for each output.

The logic circuitry and the LEDs of the Simulation Module are powered by the I/O chassis power supply. The module requires +5V DC at a maximum of 300mA. Add the current requirements of the module into the total of the other modules in the I/O chassis to check current limits. Do not overload the supply or the I/O chassis backplane.

Specifications - 1771-SIM Module
I/O per Module: 8 input simulating switches; 8 output indicators
Backplane Current: 300mA @ +5V DC