Rockwell 1769-ARM CompactLogix Address Reserve Module

The Allen-Bradley module 1769-ARM is an Address Reserve Module (ARM). This module is compatible for use with CompactLogix controllers as well as MicroLogix 1500 controllers. The ARM module reserves a slot with an inhibited module configuration. This way, future modification such as addition or replacement of inhibited module will not require hardware configuration which lead to downloading of hardware definition that may force the process to stop. Once a slot is reserved, user may insert the module and deactivate module inhibition to put the module to active mode