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Ingersoll Rand System Automation System Modbus Gateway Box Operator’s Manual Before installing or starting this unit for the first time, this manual should be studied carefully to obtain a working knowledge of the unit and or the duties to be performed while operating and maintaining the unit.
SecTIOn 2 - InTRODUcTIOn The System Modbus Gateway (SMG) Box is designed to provide a RS485 Modbus connection to the X8I or X12I Automation System. SecTIOn 3 -SAFeTy Safety Precautions OPeRATIOn • The SMG Box must only be operated by competent WARNING : Risk of Danger personnel under qualified supervision.
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Attach labels to the isolator switch and to the • The SMG Box must only be cleaned with a damp unit stating “WORK IN PROGRESS - DO NOT APPLY cloth, using mild detergents if necessary. Avoid the VOLTAGE”. Do not switch on electrical power or use of any substances containing corrosive acids or attempt to start the SMG Box if such a warning alkalis.
The Compressor 24VAC Control Voltage Reference X8I Application and Interconnect Guide For From Air Wiring connections Between The X8I, The ir-485 or irV-485 The RS485 Network is a Serial, Point to Point Compressors Gatewayand The Compressor, S3 Direct Connects,...
The System Modbus Gateway (SMG) Box is designed A fused switching isolator must be installed to the main to provide a RS485 Modbus connection to the X8I or X12I incoming power supply, external to the SMG Box. The Automation System.
MODBUS RS485 cOnnecTIOn TO ReMOTe IR485 cOnnecTIOn TO X-SeRIeS MODBUS DeVIce AUTOMATIOn SySTeM neTWORK (cUSTOMeR cOMPUTeR, PLc, DcS) MODBUS RS485 Wire polarity is important Use 2-wire, 24 gauge (Belden 9841 or equivalent), twisted pair, earth shielded, data cable with a total system Wire polarity is important network length no greater than 4000ft (1219m).
OPeRATIOnAL InDIcATIOnS RS485 neTWORK RS485 data communications and other low voltage signals can be subject to electrical interference. This potential can result in intermittent malfunction or anomaly that is difficult to diagnose. To avoid this possibility always use earth shielded cables, securely bonded to a known good earth at one end.
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