Rockwell Automation announced as of June 2018, the 1753 GuardPLC Safety I/O will be discontinued. Some of these products are no longer available for sale. Customers are encouraged to make last-time buy orders for any of the products that are still available.
Rockwell Automation announces that as of June 2018, the 1753 GuardPLC Safety I/O will be discontinued and no longer available for sale. Customers are encouraged to make last-time buy orders as far in advance of the discontinuation date as possible.
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The status of digital inputs is indicated via status indicators when themodule is in Run mode.Follow the closed-circuit principle for external wiring whenconnecting sensors. To create a safe state in the event of a fault, theinput signals revert to the de-energized state (0). The external line isnot monitored, but a wire break is interpreted as a safe (0) signal.
The GuardPLC 1600 and GuardPLC 1800 controllers provide power toinput devices through their LS+ terminals. However, input deviceswith their own dedicated power supply can also be connected insteadof contacts. The reference pole (L-) of the power supply must then beconnected to the reference pole (L-) of the appropriate GuardPLCinput group.