SR controllers provide support for a
telephone interface with local voice messaging, a hand held remote control
interface and a Modbus RTU communications interface.
The SR-MC Modbus adaptor allows the unit to be
connected to an RS485 Modbus RTU network.
The APB family of PLCs is UL508a
compliant when used with Class II power. (Applicable to the DC units.) Slave
UL508a compliant relays should be used when switching voltages greater than 48
Vdc.
