Product Description
. . . . . The Output Relay Latched (OR) Function Module is an interface between the DCM and field devices. This function module provides on/off control of field devices.
magnetic latching Form C relay and interface logic to enable the DCM to control this relay
Hand/Off/Auto (HOA) switch for manual control.
Feedback indication of the HOA switch setting to the DCM Application: The ORAL Function Module is typically used for:
control of a motor that requires a 2-wire control circuit
wherever 2-wire control is needed, and where last command should be maintained on loss of power at the DCM. Johnson Controls. Johnson Controls. FM-ORL101-0.