FieldServer FS-8700-80 - Manual (Page 4)

McQuay Micro Tech Open Protocol Driver Manual Page 4 of 43
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1 MCQUAY MICRO TECH OPEN PROTOCOL DESCRIPTION
This document describes the FieldServer driver used to transfer data between a FieldServer and MicroTech® unit
and/or network of controllers manufactured by McQuay International. Transfers are done using the controller's
Data Terminal Communications Protocol. In this document the protocol is referred to as the McQuay MicroTech®
Open Protocol. MicroTech controls are legacy products that may require the use of a FieldServer device in order to
support existing applications in need of unit or network controller replacements and/or integration into a Building
Automation System (BAS).
1.1 MicroTech Unit and System Controllers
McQuay International has provided BAS manufacturers licensed access to stand-alone MicroTech unit controllers.
The network access, which is called Open Protocol™, allows a BAS to monitor status and change limited control
parameters in McQuay International HVAC equipment. Monitoring and controlling MicroTech unit controllers may
have required the use of a MicroTech system panel, depending on the unit type, number of units and other
network requirements. There are multiple combinations of MicroTech unit controllers and/or system panels (i.e.
Open Protocol networks) that could use a FieldServer device. FieldServer-supported devices, McQuay Open
Protocol controller descriptions, and network architecture diagrams are all described in the following section.
The McQuay MicroTech® Open Protocol driver allows the FieldServer to transfer data to and from devices over
either RS-232 or RS-485 using McQuay MicroTech® Open Protocol. The FieldServer can emulate either a Server or
Client.
1.1.1 McQuay Equipment Types recognized by the driver.
Code Description
200CFC 200 Series Centrifugal Chiller
100CFC 100 Series Centrifugal Chiller
001ASC Air Cooled Screw Chiller – V2.2 Single Compressor Only
000SCU Self Contained Unit
0050RPC Reciprocating Chiller
Rooftop Unit
Water Cooled Screw Chiller
1.1.2 McQuay equipment not currently recongnized by the driver:
Code Description
Global Scroll chiller
Unit Ventilator
Water Source Heat Pump (WSHP)
MicroTech 2000 WSHP (through MCG (MicroTech Communications Gateway panel)