The 420-DIG range of digital input and output units are typically used to provide field to PLC isolation for all types of digital signals.
The units are ultra-compact and can be mounted on standard DIN Rail, taking just 22.5mm by 77mm of space.
The digital inputs provide an open collector output to the logic side and can accept 24Vdc or 48Vdc signals from the field. They use high voltage opto-isolators to provide up to 7500Vdc (5000Vrms) of field to logic isolation.
The digital outputs can switch up to 50Vdc @ a nominal current of 1A, and are controlled from standard TTL logic levels. An isolation voltage of 5000Vrms is provided.
Options include an isolated wetting voltage for the digital inputs and multi-way I/O cards for both inputs and outputs.
