Modbus Register Mapping

1 Modbus Register MappingControlPCC 1301 PowerCommand 1000 DMC 1500 MCM3320 English Original Instructions4 2012A029X159 (Issue 7)iTable of ContentsSECTIONTITLEPAGESAFETY PRECAUTIONSII .. 1. PCC 1301/POWERCOMMAND Modbus Register MAP1 .. Multi-Drop Network Mode Pins1 .. 2. POWERCOMMAND Modbus Register MAP9 .. 3. POWERCOMMAND Modbus FAULT STATUS BITMAPS267 .. 4. NFPA 110 & EXTENDED ANNUNCIATION BITMAP323 .. 5. DMC 1000 Modbus PARAMETRIC DATA325 .. 6 DMC 10000 Modbus ENUMERATED DATA355 .. 7 DMC 10000 Modbus BITMAP DATA375 .. 8. DMC 1500 COMMUNICATION SERVER 1379 .. Modbus Address: 2 (Slave).

2 379 .. Generator Set Bus Data381 .. Utility Bus Data383 .. ATS 1 5 DATA384 .. Word data (Reference Tables ATS 1-5 and 6-10)385 .. ATS 6 10 DATA386 .. 9. DMC 1500 COMMUNICATION SERVER 2389 .. Modbus Address: 1 (Slave).389 .. Generator Raw data Gen 1-5392 .. 10. MCM3320 Modbus Register MAP397 .. Modbus Communications397 .. Reference Documents397 .. Serial Port Configuration397 .. Device Addresses397 .. Power-Up Time397 .. Response Time397 .. data Formatting397 .. Modbus Activity LED397 .. Supported Functions397 .. Holding Register Function398 .. Preset Single/Preset Multiple Registers Function398.

3 Diagnostic Counters398 .. Register Maps398 .. Application Layer398 .. Read Hold Registers398 .. Set Single Register398 .. Modbus Loopback398 .. Set Multiple Registers399 .. Modbus Register Table399 .. 11. MCM3320 Modbus FAULT STATUS BITMAPS481 .. 12. MCM3320 Modbus ADDRESS 42506, 42507485 .. iiSafety PrecautionsSAVE THESE INSTRUCTIONS This manual contains important instructions that should be followed duringinstallation and maintenance of the generator set and operating the generator set (genset), read the Operator s Manual and become familiar with it andthe equipment. Safe and efficient operation can be achieved only if the equipment is properly operatedand maintained.

4 Many accidents are caused by failure to follow fundamental rules and following symbols, found throughout this manual, alert you to potentially dangerous conditions to the op-erator, service personnel, or the This symbol warns of immediate hazards which will result in severe personal injury This symbol refers to a hazard or unsafe practice which can result in severe personal in-jury or This symbol refers to a hazard or unsafe practice which can result in personal injury orproduct or property AND FUMES ARE FLAMMABLEFire, explosion, and personal injury or death can result from improper practices.

5 DO NOT fill fuel tanks while engine is running, unless tanks are outside the engine compartment. Fuelcontact with hot engine or exhaust is a potential fire hazard. DO NOT permit any flame, cigarette, pilot light, spark, arcing equipment, or other ignition source near thegenerator set or fuel tank. Fuel lines must be adequately secured and free of leaks. Fuel connection at the engine should be madewith an approved flexible line. Do not use zinc coated or copper fuel lines with diesel fuel. Natural gas is lighter than air, and will tend to gather under hoods. Propane is heavier than air, and willtend to gather in sumps or low areas.

6 NFPA code requires all persons handling propane to be trained andqualified. Be sure all fuel supplies have a positive shutoff valve. Be sure battery area has been well-ventilated prior to servicing near it. Lead-acid batteries emit a highlyexplosive hydrogen gas that can be ignited by arcing, sparking, smoking, GASES ARE DEADLY Provide an adequate exhaust system to properly expel discharged gases away from enclosed or shel-tered areas and areas where individuals are likely to congregate. Visually and audibly inspect the exhaustfor leaks daily or per the maintenance schedule. Make sure that exhaust manifolds are secured and notwarped.

7 Do not use exhaust gases to heat a compartment. The exhaust vent should be high enough to help clear gases, avoid accumulation of snow, and in accor-dance with local mechanical codes. Be sure the unit is well ventilated. Engine exhaust and some of its constituents are known to the state of California to cause cancer, birthdefects, and other reproductive PARTS CAN CAUSE SEVERE PERSONAL INJURY OR DEATH Keep your hands, clothing, and jewelry away from moving Before starting work on the generator set, disconnect battery charger from its AC source, then disconnectstarting batteries, negative ( ) cable first.

8 In lean-burn natural gas (LBNG) gensets, also make sure thestarter s air supply line is disconnected or completely vented until the generator set is ready to start. Thiswill prevent accidental starting. Make sure that fasteners on the generator set are secure. Tighten supports and clamps, keep guardsin position over fans, drive belts, etc. Do not wear loose clothing or jewelry in the vicinity of moving parts, or while working on electrical equip-ment. Loose clothing and jewelry can become caught in moving parts. If adjustment must be made while the unit is running, use extreme caution around hot manifolds, movingparts, NOT OPERATE IN FLAMMABLE AND EXPLOSIVE ENVIRONMENTSF lammable vapor can cause an engine to overspeed and become difficult to stop, resulting in possible fire,explosion, severe personal injury and death.

9 Do not operate a genset where a flammable vapor environmentcan be created by fuel spill, leak, etc., unless the genset is equipped with an automatic safety device to blockthe air intake and stop the engine. The owners and operators of the genset are solely responsible for operatingthe genset safely. Contact your authorized Cummins Power Generation distributor for more SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH Remove electric power before removing protective shields or touching electrical equipment. Use rubberinsulative mats placed on dry wood platforms over floors that are metal or concrete when around electricalequipment.

10 Do not wear damp clothing (particularly wet shoes) or allow skin surface to be damp whenhandling electrical equipment. Do not wear jewelry. Jewelry can short out electrical contacts and causeshock or burning. Use extreme caution when working on electrical components. High voltages can cause injury or NOT tamper with interlocks. Follow all applicable state and local electrical codes. Have all electrical installations performed by a quali-fied licensed electrician. Tag and lock open switches to avoid accidental closure. DO NOT CONNECT GENERATOR SET DIRECTLY TO ANY BUILDING ELECTRICAL SYSTEM.