Rewiring is required to accommodate one 2 terminal and one 3 terminal connector, which include a 115/230VAC jumper selection option as opposed to the switch selectable option in the original units. Rewiring requires a small slotted screwdriver.

If replacing high end slot mount PLCs: Both +5VDC I/O power and the Combined load in PC-0984-680/5s and PC-0984-780/5s are rated 1A higher than the ASP890300. If the Primary backplane power requirements exceed the ASP890300 capabilities, enough I/O modules must be removed from the primary backplane to bring the current load within specified limits. In this case, an additional backplane and power supply will need to be added in the configuration unless the extra modules can be added to an existing powered backplane. See I/O Module Current Requirements and Power Supply Capacities in Remote Drop Secondary Applications.

Secondary backplanes AS-H819-100 and AS-H827-100 support 7 and 11 I/O modules, respectively. Subtract two modules if power supplies need to be added.

For more information, see Backplane Interconnection Diagrams