McQuay MicroTech User Manual

IM 474-3
15
Network Commissioning
NOTICE
This section discusses the commissioning of a MicroTech network. Only personnel trained in
MicroTech network commissioning procedures are allowed to commission a network. (This
section is for review and guidance.) Network commissioning training classes are held periodically
at McQuay International’s Minneapolis location. Contact the Controls and Network Systems group
for more information on network commissioning training classes and dates.
Unless special arrangements have been made, commissioning an Open Protocol network (i.e., the
McQuay equipment including only the OPM or its substitute and all MicroTech unit or auxiliary
controllers) is the responsibility of the McQuay sales representative, not the BAS company.
The purpose of network commissioning is to establish and verify communications between the OPM
(or its substitute) and its networked MicroTech unit or auxiliary controllers. (It is not to establish and
verify unit operation.) The network commissioning procedure is similar for all level-1 panels used in
an Open Protocol environment when two or more unit controllers are included in the network. This
commissioning section pertains to the OPM, but the procedures are similar for the RMS, RMC, CSC,
LLLB, and CPC panels. For additional commissioning requirements of these OPM substitutes, refer
to their installation manuals.
Network commissioning can be done independently of the unit commissioning procedures; however,
if it is done before the units are commissioned, care should be taken to assure that the units do not
start. Before any unit is allowed to operate, it must be commissioned in accordance with the
instructions in the MicroTech unit controller installation literature (see Table 1 on page 3) and the
model-specific unit installation literature.
Note:
This section does not discuss the commissioning procedures for a MicroTech 2000 network.
For information on that, see Bulletin No. IM 661, MicroTech Communications Gateway.
Required Tools
To commission the network, you need the following tools:
1. Voltmeter
2. Ohmmeter
3. PC equipped with Open Protocol Monitor software
4. Cable to connect the PC to a MicroTech controller
For more information on the PC and cable, see “PC Connection” on page 13.
About the Network Address
For network communications to occur, each controller in the network must have a unique network
address. The network address has two parts: L2 address and L3 address. Each part is a two-digit
hexadecimal number. For example, a unit at address “01.0F” has an L2 address of 01 and an L3
address of 0F (decimal 15). The first digit in each part is called the HI digit, and the second digit is
called the LO digit. Thus for the L3 address 0F, the HI digit is “0” and the LO digit is “F.” Table 6 is a
hexadecimal to decimal conversion guide.
Figure 8. MicroTech Network Address
01.0F
L2 HI digit
L2 LO digit
L3 HI digit
L3 LO digit

McQuay MicroTech Specifications

General

Brand	McQuay
Model	MicroTech
Category	Modem
Language	English

Summary

Introduction to the OPM Panel

Applying the OPM Panel

Details how the OPM Panel is used for integrating MicroTech controllers into a BAS.

When to Use an OPM Panel

Explains scenarios requiring an OPM Panel for single-point connections to multiple controllers.

When Not to Use an OPM Panel

Outlines situations where an OPM Panel is not required or recommended.

Loop Water Controller Integration

Discusses the Loop Water Controller's role and recommended connection to the BAS.

Alternatives to the OPM Panel

MicroTech Network Controller Substitutes

Lists alternative MicroTech network controllers that can substitute for the OPM Panel.

Loop Water Controller (LWC) Considerations

Details the Loop Water Controller's role and connection recommendations.

General Description of the OPM

Component Data and Layout

Provides an overview of the OPM Panel's components and their physical layout.

Microprocessor Control Board (MCB)

Details the main control board, its components like hex switches and ports.

Microprocessor Status LEDs

Explains the function and meaning of the MCB's status LEDs for diagnostics.

Software Identification

Describes how the OPM software version is identified and displayed.

Installation Procedures

Panel Location and Mounting Guidelines

Provides guidance on selecting a suitable location and mounting the OPM Panel.

Field Wiring Requirements

Covers essential field wiring guidelines, including compliance and wiring penetration.

Power Connection Details

Details the 115 Vac power supply requirements and connection points.

Network Communications Setup

Explains the RS-485 network communication setup and architecture.

Network Cable Specification

Specifies the minimum requirements for network communications cables.

Network Wiring Instructions

Provides step-by-step instructions for connecting the network communications cable.

PC Connection for Commissioning

Outlines the requirements and methods for connecting a PC for network commissioning.

Direct PC Connection Method

Details the procedure and cable kit for direct PC-to-controller connection.

PC Cable Specification

Specifies cable requirements for connecting a PC to MicroTech controllers.

Network Commissioning Procedures

Required Tools for Commissioning

Lists the necessary tools for commissioning a MicroTech network.

Network Address Configuration

Explains the importance of unique network addresses for controller communication.

Address Schedule Preparation

Guides on creating an address schedule for network controllers.

Multi-OPM Network Addressing Strategy

Addresses network addressing strategies for projects with multiple OPM panels.

OPM Controller Setup Procedures

Covers connecting the PC, establishing communications, and setting OPM parameters.

Level-2 Trunk Connection Procedures

Details procedures for checking cables, connecting the OPM, and connecting level-2 controllers.

Service Information and Troubleshooting

Wiring Diagram Reference

Presents the schematic diagram of the OPM Panel wiring for reference.

General Test Procedures

Outlines general test procedures for verifying controller functionality.

LED Diagnostics for MCB

Explains how to use MCB LEDs for diagnosing controller status.

Troubleshooting Power Problems

Provides steps to diagnose and resolve power-related issues with the MCB.

Troubleshooting Communications Problems

Lists common issues and checks for diagnosing network communication failures.

MCB Replacement Procedure

Details the process and considerations for replacing the Microprocessor Control Board.

Parts List

Provides a list of replacement parts with their corresponding part numbers.