66 S611 Soft Starter MN03902011E—May 2012 www.eaton.comCircuit DescriptionsCircuit DescriptionsModbus RS-485 ConnectionsAdditional Modbus RegistersThe following Modbus data is provided in addition to the previously listed Modbus registers.Note: The Modbus register address is –1 of the Modbus register number.Note: All 32 bit values are Low word first LLLLHHHH. Example: Register 7 = Low word ofserial number; Register 8 = High word of serial number.Modbus RegistersPin Number CircuitEIA-485NameRecommendedWire Color Description1 Common C/C Grey Power supply common2 D1 B/B Yellow Transceiver terminal 1, V1 voltage, data + (V1 >VO forbinary 1 [OFF] state)3 N/C — — —4 D0 A/A Brown Transceiver terminal 0, VO voltage, data –(VO >V1 forbinary 0 [ON] state)5 24 Vdc — Red Power supply positiveModbusCoil NumberModbusRegister Number R/W Parameter Name Description— 1 R Field inputs This is a bitfield of inputs. Bit 0 corresponds with input 1, bit 1corresponds with input 2, and so on1 — — — Field input 12 — — — Field input 23 — — — Field input 34 — — — Field input 4CD1D024CommonRS485+RS485–+24 VdcWIRNGIwww.comoso.com
