Rockwell Automation 1440-TPS02-01RB User Manual

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XM-320 Position Module

User Guide

Firmware Revision 5

1440-TPS02-01RB

Important User Information

WARNING

IMPORTANT

ATTENTION

SHOCK HAZARD

BURN HAZARD

Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1 available from your local Rockwell Automation sales office or online at http://literature.rockwellautomation.com wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.

) describes some important differences between solid state equipment and hard-

Identifies information that is critical for successful application and understanding of the product.

Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence

Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.

Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous temperatures.

Allen-Bradley, Rockwell Automation, and XM are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

Safety Approvals

WARNING

AVERTISSEMENT

IMPORTANT

The following information applies when operating this equipment in hazardous locations.

Products marked "CL I, DIV 2, GP A, B, C, D" are suitable for use in Class I Division 2 Groups A, B, C, D, Hazardous Locations and nonhazardous locations only. Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code. When combining products within a system, the most adverse temperature code (lowest "T" number) may be used to help determine the overall temperature code of the system. Combinations of equipment in your system arfe subject to investigation by the local Authority Having Jurisdiction at the time of installation.

EXPLOSION HAZARD -

•Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous.

•Do not disconnect connections to this equipment unless power has been removed or the area is known to be nonhazardous. Secure any external connections that mate to this equipment by using screws, sliding latches, threaded connectors, or other means provided with this product.

•Substitution of components may impair suitability for Class I, Division 2.

•If this product contains batteries, they must only be changed in an area known to be nonhazardous.

Informations sur l’utilisation de cet équipement en environnements dangereux.

Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne conviennent qu'à une utilisation en environnements de Classe I Division 2 Groupes A, B, C, D dangereux et non dangereux. Chaque produit est livré avec des marquages sur sa plaque d'identification qui indiquent le code de température pour les environnements dangereux. Lorsque plusieurs produits sont combinés dans un système, le code de température le plus défavorable (code de température le plus faible) peut être utilisé pour déterminer le code de température global du système. Les combinaisons d'équipements dans le système sont sujettes à inspection par les autorités locales qualifiées au moment de l'installation.

RISQUE D’EXPLOSION –

•Couper le courant ou s'assurer que l'environnement est classé non dangereux avant de débrancher l'équipement.

•Couper le courant ou s'assurer que l'environnement est classé non dangereux avant de débrancher les connecteurs. Fixer tous les connecteurs externes reliés à cet équipement à l'aide de vis, loquets coulissants, connecteurs filetés ou autres moyens fournis avec ce produit.

•La substitution de composants peut rendre cet équipement inadapté à une utilisation en environnement de Classe I, Division 2.

•S'assurer que l'environnement est classé non dangereux avant de changer les piles.

Wiring to or from this device, which enters or leaves the system enclosure, must utilize wiring methods suitable for Class I, Division 2 Hazardous Locations, as appropriate for the installation in accordance with the product drawings as indicated in the following table.

Model Catalog Number Haz Location Drawings* Model Catalog Number Haz Location Drawings*

w/o Barriers

XM-120 1440-VST0201RA XM-121 1440-VLF0201RA XM-360 1440-TPR0600RE XM-122 1440-VSE0201RA XM-361 1440-TUN0600RE XM-123 1440-VAD0201RA XM-361 1440-TTC0600RE XM-160 1440-VDRS0600RH XM-161 1440-VDRS0606RH XM-441 1440-REX0004RD 48241-HAZ N/A XM-162 1440-VDRP0600RH XM-442 1440-REX0304RG 48642-HAZ N/A XM-220 1440-SPD0201RB 48640-HAZ 48641-HAZ

48178-HAZ 48179-HAZ

51263-HAZ 51264-HAZ

* Drawings are available on the included CD

w/ Barriers

w/o Barriers

XM-320 1440-TPS0201RB 48238-HAZ 48239-HAZ

48295-HAZ 48299-HAZ

XM-440 1440-RMA0004RC 48240-HAZ N/A

w/ Barriers

Introduction

Installing the XM-320 Position Module

Chapter 1

Introducing the XM-320 Position Module . . . . . . . . . . . . . . . . . . . . . . . 1

XM-320 Module Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Using this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Organization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Chapter 2

XM Installation Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Grounding Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Mounting the Terminal Base Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

DIN Rail Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Interconnecting Terminal Base Units . . . . . . . . . . . . . . . . . . . . . . . 17

Panel/Wall Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Connecting Wiring for Your Module . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Terminal Block Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Connecting the Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Connecting the Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Connecting the Short Circuit Protected Output . . . . . . . . . . . . . . 26

Connecting the Remote Relay Reset Signal . . . . . . . . . . . . . . . . . . 27

Connecting the Setpoint Multiplication Switch . . . . . . . . . . . . . . . 29

Connecting the 4-20mA Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Connecting the Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

PC Serial Port Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

DeviceNet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Mounting the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Module Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Basic Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Powering Up the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Manually Resetting Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Chapter 3

Configuration Parameters

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Channel Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Measurement Mode Parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Normal Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Head-To-Head Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Radial Cancel Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Alarm Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Relay Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

4-20mA Output Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Triggered Trend Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

I/O Data Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

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Specifications

DeviceNet Information

Data Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Channel Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Alarm and Relay Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Device Mode Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Appendix A

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Appendix B

Electronic Data Sheets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Changing Operation Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Transition to Program Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Transition to Run Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

XM Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Invalid Configuration Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

XM-320 I/O Message Formats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Poll Message Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

COS Message Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Bit-Strobe Message Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

ADR for XM Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

DeviceNet Objects

Appendix C

Identity Object (Class ID 01H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

DeviceNet Object (Class ID 03H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Assembly Object (Class ID 04H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Assembly Instance Attribute Data Format. . . . . . . . . . . . . . . . . . . 88

Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Connection Object (Class ID 05H). . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Instances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

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Table of Contents vii

Discrete Input Point Object (Class ID 08H) . . . . . . . . . . . . . . . . . . . . 92

Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Analog Input Point Object (Class ID 0AH). . . . . . . . . . . . . . . . . . . . . 93

Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Parameter Object (Class ID 0FH). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Instance Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Acknowledge Handler Object (Class ID 2BH) . . . . . . . . . . . . . . . . . . 98

Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Alarm Object (Class ID 31DH) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Device Mode Object (Class ID 320H) . . . . . . . . . . . . . . . . . . . . . . . . 101

Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Relay Object (Class ID 323H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Transducer Object (Class ID 328H) . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

4-20mA Output Object (Class ID 32AH) . . . . . . . . . . . . . . . . . . . . . 106

Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Glossary Index

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

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Table of Contents viii

Publication GMSI10-UM005C-EN-P - May 2010

Chapter

Introduction

This chapter provides an overview of the XM-320 Position module. It also discusses the components of the module.

For information about See page

Introducing the XM-320 Position Module 1 XM-320 Module Components 3 Using this Manual 4

Introducing the XM-320 Position Module

The XM-320 Position module is a 2-channel general purpose monitor. It is a

member of the Allen-Bradley™ XM condition monitoring and protection modules that operate both in stand-alone applications or integrate with Programmable Logic Controllers (PLCs) and control system networks.

The XM-320 supports the following measurements:

• Axial Position (Thrust) - Axial position (thrust) is a measurement of

the relative position of the thrust collar to the thrust bearing. It is a measurement that may be made in both the active and inactive thrust directions. The primary purpose of this measurement is to monitor thrust bearing wear and to insure against axial rubs. It is recommended that at least two separate transducers monitor axial position so that the redundancy will give added protection.

Most steam turbine rotors operate within the total clearance between thrust shoes (float). Normally this clearance is anywhere from 0.010 to

0.024 inches. The axial measurements are obtained by mounting a non-contact probe axially, looking at the thrust collar or shaft. The sensor provides a continuous measurement of the rotor position with respect to the thrust bearing. In most applications, the thrust detector is located in close proximity to the thrust bearing, normally located in the turbine front standard.

Series, a family of DIN rail mounted

1 Publication GMSI10-UM005C-EN-P - May 2010

2 Introduction

• Cam (Valve) Position - Valve position is a measurement of the main

steam inlet valve stem position. The valve position measurement provides the operator with the current load on the machine.

The amount of the steam valve opening, speed, governor, and relay valve position indication assists the operator in controlling the unit during startup and emergencies. When used in conjunction with data from other related Turbine Supervisory Instrumentation (TSI) indicators, load, or steam flow related machinery conditions can be diagnosed.

• Shell (Case) Expansion - Shell (Case) expansion is a measurement of

the thermal growth of the case from its fixed point outward. Steam temperature swings widely between startup, shutdown, and various operating conditions. The high pressure turbine end must move axially as expansion and contraction occurs. Continuous indication of shell thermal growth enables the operator to accelerate or change turbine load without excessive distortion of the machine shell.

• Differential Expansion - Differential expansion (DE) is a

measurement of the differences between the thermal growth of the rotor compared to the case.

Differential expansion monitoring provides the machine operator with continuous indication of the critical clearances between the expanding rotor and blades with respect to the expanding shell or casing. Proper coordination of machine parameters enables safe machine acceleration and operation during load changes and emergencies. To prevent axial rubs it is important that the rotor and case grow at the same rate.

Differential expansion is most important during a turbine “cold” startup. The rotor is fixed axially by the thrust bearing. The thrust bearing moves as the case expands – thus the need to monitor the difference in thermal expansion. Ideally, differential expansion should indicate zero change in the gap relationship between the two surfaces. When the shell growth leads or lags the rotor growth, or conversely the rotor expansion leads or lags the shell growth, an expansion differential occurs.

The XM-320 accepts input from linear variable differential transformers (LVDT), non-contact eddy current probes, rotary cam (valve) potentiometers, or any voltage output position measurement device.

Publication GMSI10-UM005C-EN-P - May 2010

Introduction 3

XM-941 Position Module Terminal Base Unit

Cat. No. 1440-TB-B

XM-320 Position Module

Cat. No. 1440-TPS02-01RB

The XM-320 also includes a single on-board relay, expandable to five, two 4-20mA outputs, and a buffered output for each input. The module can collect trend data on event, and monitor up to two alarms making it a complete position monitoring system. The module can operate stand-alone, or it can be deployed on a standard or dedicated DeviceNet network where it can provide real-time data and status information to other XM modules, PLCs, DCS, and Condition Monitoring Systems.

The XM-320 module is configurable over a DeviceNet network or using a serial connection to a PC or laptop. Refer to Chapter 3 for a list of the XM-320 configuration parameters.

XM-320 Module Components

The XM-320 consists of a terminal base unit and an instrument module. The XM-320 Position Module and the XM-941 Position Terminal Base are shown below.

Figure 1.1 XM-320 Module Components

• XM-941 Position Module Terminal Base Unit - A DIN rail mounted

base unit that provides terminations for all field wiring required by XM Position modules, including the XM-320.

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4 Introduction

IMPORTANT

• XM-320 Position Module - Mounts on the XM-941 terminal base unit

via a keyswitch and a 96-connector. The XM-320 contains the measurement electronics, processor, relay, and serial interface port for local configuration.

The XM-441 Expansion Relay module may be connected to the XM-320 module via the XM-941 terminal base unit.

When connected to the XM-320, the Expansion Relay module simply “expands” the capability of the XM-320 by adding four additional epoxy-sealed relays. The XM-320 controls the Expansion Relay module by extending to it the same logic and functional controls as the XM-320 module’s on-board relay.

Using this Manual

This manual introduces you to the XM-320 Position module. It is intended for anyone who installs, configures, or uses the XM-320 Position module.

Organization

To help you navigate through this manual, it is organized in chapters based on these tasks and topics.

Chapter 1 “Introduction” contains an overview of this manual and the XM-320 module.

Chapter 2 “Installing the XM-320 Position Module” describes how to install, wire, and use the XM-320 module.

Chapter 3 “Configuration Parameters” provides a complete listing and description of the XM-320 parameters. The parameters can be viewed and edited using the XM Serial Configuration Utility software and a personal computer.

Appendix A “Specifications” lists the technical specifications for the XM-320 module.

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Appendix B “DeviceNet Information” provides information to help you configure the XM-320 over a DeviceNet network.

Appendix C “DeviceNet Objects” provides information on the DeviceNet objects supported by the XM-320 module.

For definitions of terms used in this Guide, see the Glossary at the end of the Guide.

Introduction 5

TIP

EXAMPLE

Document Conventions

There are several document conventions used in this manual, including the following:

The XM-320 Position Module is referred to as XM-320, Position module, module, or device throughout this manual.

A tip indicates additional information which may be helpful.

This convention presents an example.

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6 Introduction

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Chapter

ATTENTION

Installing the XM-320 Position Module

This chapter discusses how to install and wire the XM-320 Position Module. It also describes the module indicators and the basic operations of the module.

For information about See page

XM Installation Requirements 8 Mounting the Terminal Base Unit 15 Connecting Wiring for Your Module 19 Mounting the Module 39 Module Indicators 41 Basic Operations 43

Environment and Enclosure

This equipment is intended for use in a Pollution Degree 2 Industrial environment, in overvoltage Category II applications (as defined in IED publication 60664–1), at altitudes up to 2000 meters without derating.

This equipment is supplied as “open type” equipment. It must be mounted within an enclosure that is suitably designed for those specific environmental conditions that will be present, and appropriately designed to prevent personal injury resulting from accessibility to live parts. The interior of the enclosure must be accessible only by the use of a tool. Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications.

See NEMA Standards publication 250 and IEC publication 60529, as applicable, for explanations of the degrees of protection provided by different types of enclosures.

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8 Installing the XM-320 Position Module

ATTENTION

XM Installation Requirements

This section describes wire, power and grounding requirements, and instructions for an XM system.

Wiring Requirements

Use solid or stranded wire. All wiring should meet the following specifications:

• 14 to 22 AWG copper conductors without pretreatment; 8 AWG

required for grounding the DIN rail for electromagnetic interference (emi) purposes

• Recommended strip length 8 millimeters (0.31 inches)

• Minimum insulation rating of 300V

• Soldering the conductor is forbidden

• Wire ferrules can be used with stranded conductors; copper ferrules

recommended

See the XM Documentation and Configuration Utility CD for Hazardous Locations installation drawings. The XM Documentation and Configuration Utility CD is packaged with the XM modules.

Power Requirements

Before installing your module, calculate the power requirements of all modules interconnected via their side connectors. The total current draw through the side connector cannot exceed 3A. Refer to the specifications for the specific modules for power requirements.

A separate power connection is necessary if the total current draw of the interconnecting modules is greater than 3A.

Figure 2.1 is an illustration of wiring modules using separate power connections.

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Installing the XM-320 Position Module 9

Any limited power source that satisfies the requirements specified below

Figure 2.1 XM Modules with Separate Power Connections

Power Supply Requirements

XM Power Supply Requirements

Listed Class 2 rated supply, or

Protection

Output Voltage 24 Vdc ± 10% Output Power 100 Watts Maximum (~4A @ 24 Vdc) Static Regulation ± 2% Dynamic Regulation ± 3% Ripple < 100mVpp Output Noise Per EN50081-1 Overshoot < 3% at turn-on, < 2% at turn-off Hold-up Time As required (typically 50mS at full rated load) * When a fused supply is used the fuse must be a 5 amp, listed, fast acting fuse such as

provided by Allen-Bradley part number 1440-5AFUSEKIT

Fused* ITE Listed SELV supply, or Fused* ITE Listed PELV supply

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10 Installing the XM-320 Position Module

IMPORTANT

See Application Technique "XM Power Supply Solutions", publication ICM-AP005A-EN-E, for guidance in architecting power supplies for XM systems.

Grounding Requirements

Use these grounding requirements to ensure safe electrical operating circumstances, and to help avoid potential emi and ground noise that can cause unfavorable operating conditions for your XM system.

DIN Rail Grounding

The XM modules make a chassis ground connection through the DIN rail. The DIN rail must be connected to a ground bus or grounding electrode conductor using 8 AWG or 1 inch copper braid. See Figure 2.2.

Use zinc-plated, yellow-chromated steel DIN rail (Allen-Bradley part no. 199-DR1 or 199-DR4) or equivalent to assure proper grounding. Using other DIN rail materials (e.g. aluminum, plastic, etc.), which can corrode, oxidize, or are poor conductors can result in improper or intermittent platform grounding.

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Figure 2.2 XM System DIN Rail Grounding

Power Supply

DYNAMIC MEASUREMENT

1440-VST02-01RA

DYNAMIC MEASUREMENT

1440-VST02-01RA

POSITION

1440-TSP02-01RB

MASTER RELAY

1440-RMA00-04RC

EXPANSION RELAY

1440-REX00-04RD

EXPANSION RELAY

1440-REX00-04RD

EXPANSION RELAY

1440-REX00-04RD

EXPANSION RELAY

1440-REX00-04RD

Power Supply

DYNAMIC MEASUREMENT

1440-VST02-01RA

DYNAMIC MEASUREMENT

1440-VST02-01RA

EXPANSION RELAY

1440-REX00-04RD

EXPANSION RELAY

1440-REX00-04RD

Installing the XM-320 Position Module 11

1 Use 14 AWG wire.

The grounding wire can be connected to the DIN rail using a DIN Rail Grounding Block (Figure 2.3).

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12 Installing the XM-320 Position Module

Figure 2.3 DIN Rail Grounding Block

Panel/Wall Mount Grounding

The XM modules can also be mounted to a conductive mounting plate that is grounded. See Figure 2.5. Use the grounding screw hole provided on the terminal base to connect the mounting plate the Chassis terminals.

Figure 2.4 Grounding Screw on XM Terminal Base

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Figure 2.5 Panel/Wall Mount Grounding

Power Supply

Installing the XM-320 Position Module 13

1 Use 14 AWG wire.

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14 Installing the XM-320 Position Module

IMPORTANT

24V Common Grounding

24V power to the XM modules must be grounded. When two or more power supplies power the XM system, ground the 24V Commons at a single point, such as the ground bus bar.

If it is not possible or practical to ground the -24Vdc supply, then it is possible for the system to be installed and operate ungrounded. However, if installed ungrounded then the system must not be connected to a ground through any other circuit unless that circuit is isolated externally. Connecting a floating system to a non-isolated ground could result in damage to the XM module(s) and/or any connected device. Also, operating the system without a ground may result in the system not performing to the published specifications regards measurement accuracy and communications speed, distance or reliability.

The 24V Common and Signal Common terminals are internally connected. They are isolated from the Chassis terminals unless they are connected to ground as described in this section. See Terminal Block Assignments on page 20 for more information.

Transducer Grounding

Make certain the transducers are electrically isolated from earth ground. Cable shields must be grounded at one end of the cable, and the other end left floating or not connected. It is recommended that where possible, the cable shield be grounded at the XM terminal base (Chassis terminal) and not at the transducer.

DeviceNet Grounding

The DeviceNet network is functionally isolated and must be referenced to earth ground at a single point. XM modules do not require an external DeviceNet power supply. Connect DeviceNet V- to earth ground at one of the XM modules, as shown in Figure 2.6.

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Installing the XM-320 Position Module 15

To Ground Bus

ATTENTION

Figure 2.6 Grounded DeviceNet V- at XM Module

Use of a separate DeviceNet power supply is not permitted. See Application Technique "XM Power Supply Solutions", publication ICM-AP005A-EN-E, for guidance in using XM with other DeviceNet products.

Mounting the Terminal Base Unit

For more information on the DeviceNet installation, refer to the ODVA Planning and Installation Manual - DeviceNet Cable System, which is available on the ODVA web site (http://www.odva.org).

Switch Input Grounding

The Switch Input circuits are functionally isolated from other circuits. It is recommended that the Switch RTN signal be grounded at a single point. Connect the Switch RTN signal to the XM terminal base (Chassis terminal) or directly to the DIN rail, or ground the signal at the switch or other equipment that is wired to the switch.

The XM family includes several different terminal base units to serve all of the measurement modules. The XM-941 terminal base, Cat. No. 1440-TB-B, is the only terminal base unit used with the XM-320.

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16 Installing the XM-320 Position Module

ATTENTION

Position terminal base at a slight angle and hook over the top of the DIN rail.

The terminal base can be DIN rail or wall/panel mounted. Refer to the specific method of mounting below.

The XM modules make a chassis ground connection through the DIN rail. Use zinc plated, yellow chromated steel DIN rail to assure proper grounding. Using other DIN rail materials (e.g. aluminum, plastic, etc.), which can corrode, oxidize or are poor conductors can result in improper or intermittent platform grounding.

You can also mount the terminal base to a grounded mounting plate. Refer to Panel/Wall Mount Grounding on page 12.

DIN Rail Mounting

Use the steps below to mount the XM-941 terminal base unit on a DIN rail (A-B pt no. 199-DR1 or 199-DR4).

1. Position the terminal base on the 35 x 7.5mm DIN rail (A).

2. Slide the terminal base unit over leaving room for the side

connector (B).

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Installing the XM-320 Position Module 17

IMPORTANT

3. Rotate the terminal base onto the DIN rail with the top of the rail hooked under the lip on the rear of the terminal base.

4. Press down on the terminal base unit to lock the terminal base on the DIN rail. If the terminal base does not lock into place, use a screwdriver or similar device to open the locking tab, press down on the terminal base until flush with the DIN rail and release the locking tab to lock the base in place.

Interconnecting Terminal Base Units

Follow the steps below to install another terminal base unit on the DIN rail.

Make certain you install the terminal base units in order of left to right.

1. Position the terminal base on the 35 x 7.5mm DIN rail (A).

2. Make certain the side connector (B) is fully retracted into the base unit.

3. Slide the terminal base unit over tight against the neighboring terminal

base. Make sure the hook on the terminal base slides under the edge of the terminal base unit.

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18 Installing the XM-320 Position Module

5. Gently push the side connector into the side of the neighboring terminal base unit to complete the backplane connection.

Panel/Wall Mounting

Installation on a wall or panel consists of:

• laying out the drilling points on the wall or panel

• drilling the pilot holes for the mounting screws

• installing the terminal base units and securing them to the wall or panel

Use the following steps to install the terminal base on a wall or panel.

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Installing the XM-320 Position Module 19

Side Connector

1. Lay out the required points on the wall/panel as shown in the drilling dimension drawing below.

Connecting Wiring for Your Module

2. Drill the necessary holes for the #6 self-tapping mounting screws.

3. Secure the terminal base unit using two #6 self-tapping screws.

4. To install another terminal base unit, retract the side connector into the base unit. Make sure it is fully retracted.

5. Position the terminal base unit up tight against the neighboring terminal

base. Make sure the hook on the terminal base slides under the edge of the terminal base unit.

6. Gently push the side connector into the side of the neighboring terminal base to complete the backplane connection.

7. Secure the terminal base to the wall with two #6 self-tapping screws.

Wiring to the module is made through the terminal base unit on which the module mounts. The XM-320 is compatible only with the XM-941 terminal base unit, Cat. No. 1440-TB-B.

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20 Installing the XM-320 Position Module

ATTENTION

WARNING

XM-941, Cat. No. 1440-TB-B

Figure 2.7 XM-941 Terminal Base Unit

Terminal Block Assignments

The terminal block assignments and descriptions for the XM-320 module are shown below.

Terminal Block Assignments

The terminal block assignments are different for different XM modules. The following table applies only to the XM-320. Refer to the installation instructions for the specific XM module for its terminal assignments.

EXPLOSION HAZARD

Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous.

Do not disconnect connections to this equipment unless power has been removed or the area is known to be nonhazardous. Secure any external connections that mate to this equipment by using screws, sliding latches, threaded connectors, or other means provided with this product.

No. Name Description

0 Xducer 1 (+) Transducer 1 connection 1 Xducer 2 (+) Transducer 2 connection 2 Protected Output 1

(+)

3 Protected Output 2

(+)

Short Circuit Protected Output 1, positive side

Short Circuit Protected Output 2, positive side

4 No Connection 5 No Connection 6 Xducer V (+) Transducer power supply output, positive side

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Terminal Block Assignments

Installing the XM-320 Position Module 21

No. Name Description

7 TxD PC serial port, transmit data 8 RxD PC serial port, receive data 9 XRTN Circuit return for TxD and RxD 10 Chassis Connection to DIN rail ground spring or panel mounting hole 11 4-20mA 1 (+) 4-20mA output 12 4-20mA 1 (-)

600 ohm maximum load

13 Chassis Connection to DIN rail ground spring or panel mounting hole 14 Chassis Connection to DIN rail ground spring or panel mounting hole 15 Chassis Connection to DIN rail ground spring or panel mounting hole 16 Xducer 1 (-) Transducer 1 connection 17 Xducer 2 (-) Transducer 2 connection 18 Protected Output 1

Short Circuit Protected Output 1, negative side

(-)

19 Protected Output 2

Short Circuit Protected Output 2, negative side

(-) 20 No Connection 21 No Connection 22 Xducer V (-) Transducer power supply output, negative side 23 CAN_High DeviceNet bus connection, high differential (white wire) 24 CAN_Low DeviceNet bus connection, low differential (blue wire) 25 +24V Out Internally connected to 24V In (terminal 44)

Used to daisy chain power if XM modules are not plugged into

each other 26 DNet V (+) DeviceNet bus power input, positive side (red wire) 27 DNet V (-) DeviceNet bus power input, negative side (black wire) 28 24V Common Internally connected to 24V Common (terminals 43 and 45)

Used to daisy chain power if XM modules are not plugged into

each other 29 4-20mA 2 (+) 4-20mA output 30 4-20mA 2 (-)

600 ohm maximum load

31 Chassis Connection to DIN rail ground spring or panel mounting hole 32 Chassis Connection to DIN rail ground spring or panel mounting hole 33 Chassis Connection to DIN rail ground spring or panel mounting hole 34 Chassis Connection to DIN rail ground spring or panel mounting hole 35 Chassis Connection to DIN rail ground spring or panel mounting hole 36 Chassis Connection to DIN rail ground spring or panel mounting hole 37 Chassis Connection to DIN rail ground spring or panel mounting hole 38 Chassis Connection to DIN rail ground spring or panel mounting hole

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22 Installing the XM-320 Position Module

24V dc Power Supply

Terminal Block Assignments

No. Name Description

39 SetPtMult Switch input to activate Set Point Multiplication (active closed) 40 Switch RTN Switch return, shared between SetPtMult and Reset Relay 41 Reset Relay Switch input to reset internal relay (active closed) 42 Reserved 43 24V Common Internally DC-coupled to circuit ground 44 +24V In Connection to primary external +24V power supply, positive

side 45 24V Common Connection to external +24V power supply, negative side

(internally DC-coupled to circuit ground) 46 Relay N.C. 1 Relay Normally Closed contact 1 47 Relay Common 1 Relay Common contact 1 48 Relay N.O. 1 Relay Normally Open contact 1 49 Relay N.O. 2 Relay Normally Open contact 2 50 Relay Common 2 Relay Common contact 2 51 Relay N.C. 2 Relay Normally Closed contact 2

Connecting the Power Supply

Power supplied to the module must be nominally 24 Vdc (±10%) and must be a Class 2 rated circuit.

Wire the DC-input power supply to the terminal base unit as shown in Figure

2.8.

Figure 2.8 DC Input Power Supply Connections

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Installing the XM-320 Position Module 23

IMPORTANT

ATTENTION

IMPORTANT

TIP

A Class 2 circuit can be provided by use of an NEC Class 2 rated power supply, or by using a SELV or PELV rated power supply with a 5 Amp current limiting fuse installed before the XM module(s).

24Vdc needs to be wired to terminal 44 (+24 V In) to provide power to the device and other XM modules linked to the wired terminal base via the side connector.

The power connections are different for different XM modules. Refer to the installation instructions for your specific XM module for complete wiring information.

Connecting the Relays

The XM-320 has both Normally Open (NO) and Normally Closed (NC) relay contacts. Normally Open relay contacts close when the control output is energized. Normally Closed relay contacts open when the control output is

energized.

The alarms associated with the relay and whether the relay is normally de-energized (non-failsafe) or normally energized (failsafe) depends on the configuration of the module. Refer to Relay Parameters on page 58 for details.

Table 2.1 shows the on-board relay connections for the XM-320.

All XM relays are double pole. This means that each relay has two contacts in which each contact operates independently but identically. The following information and illustrations show wiring solutions for both contacts; although, in many applications it may be necessary to wire only one contact.

The Expansion Relay module may be connected to the XM-320 to provide additional relays. Refer to the XM-441 Expansion Relay Module User Guide for wiring details.

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24 Installing the XM-320 Position Module

IMPORTANT

The NC/NO terminal descriptions (page 22) correspond

to a de-energized (unpowered) relay.

When the relay is configured for non-failsafe operation, the relay is normally de-energized.

When the relay is configured for failsafe operation, the relay is normally energized, and the behavior of the NC and NO terminals is inverted.

Table 2.1 Relay Connections for XM-320

Configured for

Failsafe Operation Relay 1 Terminals

Nonalarm Alarm Wire Contacts Contact 1 Contact 2

Closed Opened COM 47 50

NO 48 49

Opened Closed COM 47 50

NC 46 51

Configured for

Non-failsafe Operation Relay 1 Terminals Nonalarm Alarm Wire Contacts Contact 1 Contact 2

Closed Opened COM 47 50

NC 46 51

Opened Closed COM 47 50

NO 48 49

Figures 2.9 and 2.10 illustrate the behavior of the NC and NO terminals when the relay is wired for failsafe, alarm or nonalarm condition or non-failsafe, alarm or nonalarm condition.

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Installing the XM-320 Position Module 25

Figure 2.9 Relay Connection - Failsafe, Nonalarm Condition Non-failsafe, Alarm Condition

Figure 2.10 Relay Connection - Failsafe, Alarm Condition

Non-failsafe, Nonalarm Condition

Alternate Relay Wiring

Figures 2.11 and 2.12 show how to wire both ends of a single external indicator to the XM terminal base for failsafe, nonalarm or alarm condition, or non-failsafe, nonalarm or alarm condition.

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26 Installing the XM-320 Position Module

Figure 2.11 Relay Connection - Failsafe, Nonalarm Condition

Non-failsafe, Alarm Condition

Figure 2.12 Relay Connection - Failsafe, Alarm Condition

Non-failsafe, Nonalarm Condition

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Connecting the Short Circuit Protected Output

The XM-320 provides short circuit protected outputs of all transducer input signals. The protected output connections may be used to connect the module

to portable data collectors or other online systems.

Figure 2.13 shows the short circuit protected output connections for the XM-320.

Installing the XM-320 Position Module 27

TIP

Figure 2.13 Short Circuit Protected Output Connections

Connecting the Remote Relay Reset Signal

If you set the module relay to latching and the relay activates, the relay stays activated even when the condition that caused the alarm has ended. The remote relay reset signal enables you to reset your module relay remotely after you have corrected the alarm condition. This includes latched relays in the Expansion Relay module when it is attached to the XM-320.

You can discretely reset a relay using the serial or remote configuration tool.

If you set a module relay to latching, make sure that any linked relays, such as relays in an XM-440 Master Relay Module, are not configured as latching. When both relays are set to latching, the relay in each module will have to be independently reset when necessary.

Wire the Remote Relay Reset Signal to the terminal base unit as shown in Figure 2.14.

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28 Installing the XM-320 Position Module

ATTENTION

Figure 2.14 Remote Relay Reset Signal Connection

The Switch Input circuits are functionally isolated from other circuits. It is recommended that the Switch RTN signal be grounded at a signal point. Connect the Switch RTN signal to the XM terminal base (Chassis terminal) or directly to the DIN rail, or ground the signal at the switch or other equipment that is wired to the switch.

A single switch contact can also be shared by multiple XM modules wired in parallel as shown in Figure 2.15.

The relay reset connections may be different for different XM modules. Figure 2.15 applies only to the XM-320 module. Refer to the installation instructions for the module for its terminal assignments.

Figure 2.15 Typical Multiple XM Modules Remote Relay Reset Signal Connection

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Installing the XM-320 Position Module 29

ATTENTION

Connecting the Setpoint Multiplication Switch

You can configure the module to multiply the alarm setpoints, or inhibit the alarms during the start-up period. This can be used to avoid alarm conditions that may occur during startup, for example, when the monitored machine passes through a critical speed.

Wire the Setpoint Multiplication switch to the terminal base unit as shown in Figure 2.16.

Figure 2.16 Setpoint Multiplication Connection

Connecting the 4-20mA Outputs

The module includes an isolated 4-20mA per channel output into a maximum load of 600 ohms. The measurements that the 4-20mA output tracks and the signal levels that correspond to the 4mA and 20mA are configurable. Refer to 4-20mA Output Parameters on page 62 for a description of the 4-20mA parameters.

Wire the 4-20mA outputs to the terminal base unit as shown in Figure 2.17.

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ATTENTION

Figure 2.17 4-20mA Output Connections

The 4-20mA outputs are functionally isolated from other circuits. It is recommended that the outputs be grounded at a single point. Connect the 4-20mA (-) to the XM terminal base (Chassis terminal) or directly to the DIN rail, or ground the signal at the other equipment in the 4-20mA loop.

Connecting the Transducer

The XM-320 will accept signals from a linear variable differential transformer (LVDT), non-contact eddy current probe, or a rotary cam (valve)

potentiometer.

Connecting a Non-contact Sensor

The following figures show the wiring from a non-contact sensor to the terminal base unit of the XM-320 module.

You may ground the cable shield at either end of the cable. Do not ground the shield at both ends. Recommended practice is to ground the cable shield at the XM-320 terminal base and not at the transducer. Any convenient Chassis terminal may be used (see Terminal Block Assignments on page 20).

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Installing the XM-320 Position Module 31

TYPICAL WIRING FOR NON-CONTACT SENSOR

TO XM-320 POSITION MODULE CHANNEL 1

COM

SIG

-24

Channel 1 Input Signal

-24V DC

Signal Common

Shield Floating

Shield

Isolated Sensor Driver

TYPICAL WIRING FOR NON-CONTACT SENSOR

TO XM-320 POSITION MODULE CHANNEL 2

COM

SIG

-24

Shield

Channel 2 Input Signal

-24V DC

Signal Common

Shield Floating

Isolated Sensor Driver

* See note

Note: If connecting non-contact sensors to both channels 1 and 2, install jumper between terminals 17 and 43 instead of terminals 17 and 6 in order to limit wires to two per terminal.

Figure 2.18 Non-contact sensor to channel 1 wiring

Figure 2.19 Non-contact sensor to channel 2 wiring

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32 Installing the XM-320 Position Module

ATTENTION

Signal Ground

+24V DC

Power Ground

Channel 1 Input Signal

Signal Ground

TYPICAL WIRING FOR LINEAR VARIABLE DIFFERENTIAL

TRANSFORMER (LVDT) TO XM-320 POSITION MODULE CHANNEL 1

Power Ground

Input Signal

+24V DC

Cable shield not connected at this end

Shield

Connecting an LVDT

The following figures show the wiring from a linear variable differential transformer (LVDT) to the terminal base unit of the XM-320.

Figure 2.20 LVDT to channel 1 wiring

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Figure 2.21 LVDT to channel 2 wiring

Signal Ground

+24V DC

Power Ground

Channel 2 Input Signal

Signal Ground

TYPICAL WIRING FOR LINEAR VARIABLE DIFFERENTIAL

TRANSFORMER (LVDT) TO XM-320 POSITION MODULE CHANNEL 2

Power Ground

Input Signal

+24V DC

Cable shield not connected at this end

Shield

ATTENTION

Installing the XM-320 Position Module 33

Connecting a Cam Potentiometer

The following figures show the wiring from a cam potentiometer to the terminal base unit of the XM-320.

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34 Installing the XM-320 Position Module

TYPICAL WIRING FOR CAM (VALVE) POTENTIOMETER

TO XM-320 POSITION MODULE CHANNEL 1

Signal Common

+24V DC

Channel 1 Input Signal

Signal Common

+24V DC

Cable shield not connected at this end

Shield

TYPICAL WIRING FOR CAM (VALVE) POTENTIOMETER

TO XM-320 POSITION MODULE CHANNEL 2

Signal Common

+24V DC

Channel 2 Input Signal

Signal Common

+24V DC

Cable shield not connected at this end

Shield

* See note

Note: If connecting cam potentiometers to both channels 1 and 2, install jumper between terminals 17 and 28 instead of terminals 17 and 22 in order to limit wires to two per terminal.

Figure 2.22 Cam potentiometer to channel 1 wiring

Figure 2.23 Cam potentiometer to channel 2 wiring

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Installing the XM-320 Position Module 35

ATTENTION

IMPORTANT

Connecting a Non-contact Sensor and an LVDT

The figure below shows the wiring of a non-contact sensor to channel 1 and an LVDT to channel 2 of the XM-320.

The +24V LVDT powered from pin 25 does not utilize the redundant power connection to the XM-320. So if primary 24V power is lost, the +24V sensor will lose power regardless of whether the XM-320 remains powered through the redundant power terminals.

If redundant power is required then use a redundant power supply (Allen-Bradley 1606-series is recommended).

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36 Installing the XM-320 Position Module

Signal Ground

TYPICAL WIRING FO R NON-CONTACT SENSOR AND LINEAR VARIABLE

DIFFERENTIAL TRANSFORMER (LVDT) TO XM-320 POSITION MODULE

Power Ground

Input Signal

+24V DC

COM

Shield

Channel 1 Input Signal

-24V DC

Signal Common

Signal Ground

Channel 2 Input Signal

+24V DC

Power Ground

Cable shield not connected at this end

Shield Floating

Shield

Isolated Sensor Driver

Figure 2.24 Non-contact sensor and LVDT wiring

PC Serial Port Connection

The XM-320 includes a serial port connection that allows you to connect a PC to it and configure the module’s parameters. There are two methods of connecting an external device to the module’s serial port.

• Ter mi nal Bas e Un it - There are three terminals on the terminal base

unit you can use for the serial port connection. They are TxD, RxD, and RTN (terminals 7, 8, and 9, respectively). If these three terminals are wired to a DB-9 female connector, then a standard RS-232 serial cable with 9-pin (DB-9) connectors can be used to connect the module to a PC (no null modem is required).

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Installing the XM-320 Position Module 37

POSITION

1440-TPS02-01RB

mini-connector

WARNING

IMPORTANT

The DB-9 connector should be wired to the terminal base unit as follows.

XM-320 Terminal Base Unit (Cat. No. 1440-TB-B)

TX Terminal (terminal 7) ---------------------- Pin 2 (RD - receive data) RX Terminal (terminal 8) ---------------------- Pin 3 (TD - transmit data) RTN Terminal (terminal 9) --------------------- Pin 5 (SG - signal ground)

DB-9 Female Connector

• Mini-Connector - The mini-connector is located on the top of the

XM-320, as shown below.

Figure 2.25 Mini Connector

A special cable (Cat. No. 1440-SCDB9FXM2) is required for this connection. The connector that inserts into the PC is a DB-9 female connector, and the connector that inserts into the module is a USB Mini-B male connector.

If you connect or disconnect the serial cable with power applied to the module or the serial device on the other end of the cable, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding.

If 24V Common is not referenced to earth ground, we recommend you use an RS-232 isolator, such as Phoenix PSM-ME-RS232/RS232-P (Cat. No. 1440-ISO-232-24), to protect both the XM module and the computer.

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38 Installing the XM-320 Position Module

IMPORTANT

ATTENTION

DeviceNet Connection

The XM-320 includes a DeviceNet™ connection that allows the module to communicate directly with a programmable controller, distributed control system (DCS), or another XM module.

DeviceNet is an open, global, industry-standard communications network designed to provide an interface through a single cable from a programmable controller to a smart device such as the XM-320 module. As multiple XM modules are interconnected, DeviceNet also serves as the communication bus and protocol that efficiently transfers data between the XM modules.

Connect the DeviceNet cable to the terminal base unit as shown.

Connect To Terminal Base Unit

Red Wire DNet V+ 26 (optional—see note) White Wire CAN High 23 Bare Wire Shield (Chassis) 10 Blue Wire CAN Low 24 Black Wire DNet V- 27

The DeviceNet power circuit through the XM module interconnect, which is rated at only 300 mA, is not intended or designed to power DeviceNet loads. Doing so could damage the module or terminal base.

To preclude this possibility, even unintentionally, it is recommended that DeviceNet V+ be left unconnected.

You must ground the DeviceNet shield at only one location. Connecting the DeviceNet shield to terminal 10 will ground the DeviceNet shield at the XM-320 module. If you intend to terminate the shield elsewhere, do not connect the shield to terminal 10.

The DeviceNet network must also be referenced to earth at only one location. Connect DNet V- to earth or chassis at one of the XM modules.

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Installing the XM-320 Position Module 39

ATTENTION

IMPORTANT

ATTENTION

The DNet V+ and DNet V- terminals are inputs to the XM module. Do not attempt to pass DeviceNet power through the XM terminal base to other non-XM equipment by connecting to these terminals. Failure to comply may result in damage to the XM terminal base and/or other equipment.

Terminate the DeviceNet network and adhere to the requirements and instructions in the ODVA Planning and Installation Manual - DeviceNet Cable System, which is available on the ODVA web site (http://www.odva.org).

The device is shipped from the factory with the network node address (MAC ID) set to 63. The network node address is software settable. You can use the XM Serial Configuration Utility or RSNetWorx for DeviceNet (Version 3.0 or later) to set the network node address. Refer to the appropriate documentation for details.

Mounting the Module

The baud rate for the XM-320 is set by way of “baud detection” (Autobaud) at power-up.

The XM-320 mounts on the XM-941 terminal base unit, Cat. No. 1440-TB-B. You should mount the module after you have connected the wiring on the terminal base unit.

The XM-320 is compatible only with the XM-941 terminal base unit. The keyswitch on the terminal base unit should be at position 4 for the XM-320.

Do not attempt to install XM-320 modules on other terminal base units.

Do not change the position of the keyswitch after wiring the terminal base.

This module is designed so you can remove and insert it under power. However, when you remove or insert the

module with power applied, I/O attached to the module can change states due to its input/output signal changing conditions. Take special care when using this feature.

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40 Installing the XM-320 Position Module

WARNING

IMPORTANT

When you insert or remove the module while power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding.

Install the overlay slide label to protect serial connector and electronics when the serial port is not in use.

1. Make certain the keyswitch (A) on the terminal base unit (C) is at position 4 as required for the XM-320.

2. Make certain the side connector (B) is pushed all the way to the left. Yo u cannot install the module unless the connector is fully extended.

3. Make sure that the pins on the bottom of the module are straight so they

will align properly with the connector in the terminal base unit.

4. Position the module (D) with its alignment bar (E) aligned with the groove (F) on the terminal base.

5. Press firmly and evenly to seat the module in the terminal base unit. The module is seated when the latching mechanism (G) is locked into the module.

6. Repeat the above steps to install the next module in its terminal base.

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Installing the XM-320 Position Module 41

POSITION

1440-TPS02-01RB

Module Indicators

The XM-320 has six LED indicators, which include a module status (MS) indicator, a network status (NS) indicator, a status indicator for each channel (CH1 and CH2), an activation indicator for the Setpoint Multiplier, and a status indicator for the Relay. The LED indicators are located on top of the module.

Figure 2.26 LED Indicators

The following tables describe the states of the LED status indicators.

Module Status (MS) Indicator

Color State Description

No color Off No power applied to the module. Green Flashing Red Module performing power-up self test.

Flashing

Solid

Module operating in Program Mode

Module operating in Run Mode

Red Flashing • Application firmware is invalid or not loaded.

Download firmware to the module.

• Firmware download is currently in progress.

• The module power voltage is incorrect.

Solid An unrecoverable fault has occurred. The module may

need to be repaired or replaced.

1 Program Mode - Typically this occurs when the module configuration settings are being updated with the XM

Serial Configuration Utility. In Program Mode, the module does not perform its usual functions. The signal processing/measurement process is stopped, and the status of the alarms is set to the disarm state to prevent a false alert or danger status.

2 Run Mode - In Run Mode, the module collects measurement data and monitors each measurement device.

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42 Installing the XM-320 Position Module

Network Status (NS) Indicator

Color State Description

No color Off Module is not online.

• Module is autobauding.

• No power is applied to the module, look at Module

Status LED.

Green Flashing Module is online (DeviceNet) but no connections are

currently established.

Solid Module is online with connections currently

established.

Red Flashing One or more I/O connections are in the timed-out state.

Solid Failed communications (duplicate MAC ID or Bus-off).

1 Normal condition when the module is not a slave to an XM-440, PLC, or other master device.

Channel 1 and Channel 2 Status Indicators

Color State Description

No Color Off • Normal operation within alarm limits on the channel.

• No power applied to the module, look at Module

Status LED.

Yellow Solid An alert level alarm condition exists on the channel

(and no transducer fault or danger level alarm condition exists).

Red Solid A danger level alarm condition exists on the channel

(and no transducer fault condition exists).

Flashing A transducer fault condition exists on the channel.

Setpoint Multiplier Indicator

Color State Description

Yellow Off Setpoint multiplier is not in effect.

Solid Setpoint multiplier is in effect.

Relay Indicator

Color State Description

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Red Off On-board relay is not activated.

Solid On-board relay is activated.

Installing the XM-320 Position Module 43

POSITION

1440-TPS02-01RB

Press the Reset Switch to reset the relays

Basic Operations

Powering Up the Module

The XM-320 performs a self-test at power-up. The self-test includes an LED test and a device test. During the LED test, the indicators will be turned on independently and in sequence for approximately 0.25 seconds.

The device test occurs after the LED test. The Module Status (MS) indicator is used to indicate the status of the device self-test.

MS Indicator State Description

Flashing Red and Green Device self test is in progress. Solid Green or Flashing Green Device self test completed successfully, and the

firmware is valid and running.

Flashing Red Device self test completed, the hardware is OK, but the

firmware is invalid. Or, the firmware download is in progress.

Solid Red Unrecoverable fault, hardware failure, or Boot Loader

program may be corrupted.

Refer to Module Indicators on page 41 for more information about the LED indicators.

Manually Resetting Relays

The XM-320 has an external reset switch located on top of the module, as shown in Figure 2.27.

Figure 2.27 Reset Switch

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44 Installing the XM-320 Position Module

IMPORTANT

The switch can be used to reset all latched relays in the module. This includes the relays in the Expansion Relay Module when it is connected to the XM-320.

The Reset switch resets the relays only if the input is no longer in alarm or the condition that caused the alarm is no longer present.

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Chapter

IMPORTANT

Configuration Parameters

This chapter provides a complete listing and description of the XM-320 parameters. The parameters can be viewed and edited using the XM Serial Configuration Utility software and a personal computer. If the module is installed on a DeviceNet network, configuring can also be performed using a network configuration tool such as RSNetWorx (Version 3.0 or later). Refer to your configuration tool documentation for instructions on configuring a device.

For information about See page

Channel Parameters 46 Measurement Mode Parameter 49 Alarm Parameters 55 Relay Parameters 58 4-20mA Output Parameters 62 Triggered Trend Parameters 63 I/O Data Parameters 65 Data Parameters 66 Device Mode Parameters 68

The appearance and procedure to configure the parameters may differ in different software.

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46 Configuration Parameters

TIP

Eng. Units Output Data

Unit Options

mils mils

mm mm

mils

deg deg

Channel Parameters

The Channel parameters define the characteristics of the transducers you will be using with the XM-320. Use the parameters to configure the transducer sensitivity, operating range, power requirements, measurement mode, and calibration offset. There are two instances of the parameters, one for each channel.

The Channel LED will flash red when a transducer fault condition exists on a channel even if you are not using the channel. You can keep the Channel LED from flashing red on unused channels by setting the channel’s Fault High and Fault Low to greater than zero and less than zero, respectively. For example, set Fault High to +18 volts and set Fault Low to -18 volts.

Channel Parameters

Parameter Name Description Values/Comments Channel Name (XM Serial

Configuration Utility only) Sensitivity The sensitivity of the transducer in millivolts per

Eng. Units Defines the native units of the transducer. Your

Output Data Unit The data units of the measured values. The available options depend on the

A descriptive name to help identify the channel in the XM Serial Configuration Utility.

Eng. Units.

choice controls the list of possible selections available in the Output Data Units parameter. It also affects other module parameters, for example the Alert and Danger Threshold, Measurement Value, 4–20 mA Output.

Maximum 18 characters

This value can be found on the transducer’s data sheet.

Options: mils (1/1000 inch)

mm (millimeter) degrees %

Eng. Units selection.

Fault High The maximum expected DC bias voltage from the

Fault Low The minimum, or most negative, expected DC bias

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transducer.

voltage from the transducer.

Volts

Note: A voltage reading outside this range constitutes a transducer fault.

Configuration Parameters 47

Time Constant (seconds)

-3dB Frequency (Hz)

Settling (seconds)

1 0.159 2.2 2 0.080 4.4 3 0.053 6.6 4 0.040 8.8 5 0.032 11 6 0.027 13.2 7 0.023 15.4 8 0.020 17.6 9 0.018 19.8 10 0.016 22

Channel Parameters

Parameter Name Description Values/Comments DC Bias Time Constant

The time constant used for exponential averaging

Seconds (low pass filtering) of the transducer DC bias measurement. The corner frequency for the low pass filter is 1 / (2

π x DC Bias Time Constant). The

greater the value entered, the longer the settling time of the measured value to a change in the input signal. See example table below.

Target Angle Sets the angle between the shaft and the target

Upscale Sets the movement of the target relative to the

Calibration Offset (XM Serial Configuration Utility only)

surface. The target surface moves with the shaft. The transducer is mounted perpendicular to the target surface.

transducer that is considered positive displacement. Enter the position of the current Transducer DC

Bias reading.

degrees

Options: Away

Toward s

mils

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48 Configuration Parameters

Channel Parameters

Parameter Name Description Values/Comments Calibration Bias Sets the zero or green position. The zero position is

Volts the normal operating position. Setting the zero position compensates for the static gap. This allows the module to display only the displacement around the zero position.

Note: Check with the manufacturer

about operating thrust position and

acceptable tolerances before making

any adjustments. Use one of the formulas below to calculate the Calibration Bias. The formula that you use depends on the Upscale setting and whether Fault High and

Fault Low are both less than or equal to zero (0).

Calculate Bias (XM Serial Configuration Utility only)

Upscale

set to “Towards” Formula

Calibration bias = Transducer DC Bias + (Sensitivity x Calibration Offset) x sin (Target Angle)

Upscale

set to “Away” Formula

Calibration Bias = Transducer DC Bias (Sensitivity x Calibration Offset) x sin (Target Angle)

If Fault High and Fault Low are both less than or equal to 0, use one of these formulas:

Upscale

set to “Towards” Formula

Calibration bias = Transducer DC Bias (Sensitivity x Calibration Offset) x sin (Target Angle)

Upscale

set to “Away” Formula

Calibration Bias = Transducer DC Bias + (Sensitivity x Calibration Offset) x sin (Target Angle)

Automatically calculates the Calibration Bias value.

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Configuration Parameters 49

XM Configuration Utility

EDS File

Mode Measurement

Mode

Measurement Mode

The Measurement Mode parameter controls how the two axial sensors are used to calculate the position measurement. Use this parameter to configure

Parameter

Measurement Mode

Parameter Name Description Values/Comments

the mode of operation.

Select the mode of the two axial sensors.

• Normal - The two sensors are used independently

to perform two separate position measurements. See page 49 for more information about this mode.

• Head-to-Head - The two sensors are used

together, facing each other on either side of the target, to perform a single position measurement. This mode can be used to extend the measurable range beyond that of a single sensor. See page 51 for more information about this mode.

• Radial Cancel - The two sensors are used

together to perform a single position measurement. The second sensor is set up to measure the radial movement of the target. The radial movement is then subtracted from the position measurement performed by the first sensor. See page 54 for more information about this mode.

Options: Normal

Head-to-Head Radial Cancel

Normal Mode

In normal mode the module behaves as a two channel differential unit with the probes mounted on the casing and measuring the shaft position relative to the casing. Positioning of probes is critical to ensure that valid shaft movement cannot at any time damage the probes. Selection of probe type and range is obviously important. The static gaps of the probes are automatically subtracted from the measurement in order that the system can measure small movements relative to the total gaps.

When using this mode, the module uses straight targets, angled targets, or mixed target types, as shown in Figure 3.1.

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50 Configuration Parameters

IMPORTANT

NORMAL MODE (straight targets)

(angled targets)

(mixed targets)

Figure 3.1 Normal Mode

The XM-320 provides monitoring facilities for the following machine measurements when in normal mode.

• Axial (thrust) Position

• Differential Expansion

• Case Expansion

• Valve Position

For the valve position measurement, Sensitivity must be set to "deg."

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Configuration Parameters 51

TIP

HEAD TO HEAD MODE (one target)

(two targets)

Head-To-Head Mode

The head-to-head mode allows extended range operation by using two probes in a “back to back” arrangement shown in the illustration in Figure 3.2. This mode can be used when the machine does not have enough space for larger diameter probes. It is not necessary for the scales to be symmetrical in this mode, and probes of different voltage sensitivities can be used within the one module.

Figure 3.2 Head-to-Head Mode

In head-to-head mode, the XM-320 provides monitoring facilities for complementary differential expansion measurements.

In head-to-head mode, all position measurements are stored in channel 1.

Head-to-Head Example

This head-to-head application measures a total displacement of 1000 mils on a shaft collar using two 500 mil probes with a standard sensitivity of 30mV/mil (or 0.030V/mil). See Figure 3.3.

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52 Configuration Parameters

Note: The direction of differential growth for an upscale reading is away from Probe A and towards Probe B.

IMPORTANT

Figure 3.3 Head-to-Head Mode

The chart below shows gap-to-instrument reading-to-voltage outputs for typical 500 mil transducers with an offset of 150 mils. Note that the offset gap of a transducer is the gap closest to the transducer where the transducer’s response to gap change becomes non-linear and not useful for measurement.

Probe A Probe B

Gap 150 0 -2.8 150 0 -3 250 100 -5.8 250 100 -6 400 250 -10.3 400 250 -10.5 550 400 -14.8 550 400 -15 650 500 -17.8 650 500 -18

Reading Voltage Gap Reading Voltage

Make certain the shaft is in its correct cold position or compensate for the actual shaft axial position if it is known. You can put the shaft into position by mechanically moving it up against the active thrust shoe, or use the actual thrust position to offset the transducer gap settings so that they will be correct when the rotor is in the cold position.

Install and gap the probes for their cold gap settings using the information provided from previous installations or data provided in the Turbine manual. This example assumes that the correct cold set point (Green line) is 250 mils, the rotor is placed against the active thrust shoes, and the measurement range is 0 to 1000 mils.

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Configuration Parameters 53

Probe A Gap 250 150 0 400 mils=++=

Probe B Gap 1000 250 150 0++–900==

Calculate and set the transducers as follows:

1. To determine the placement of Probe A, add the Cold Set Point to the Transducer Offset, then add the Axial Position from the Active Face.

2. To determine the placement of Probe B, subtract the Cold Set Point from the Full Scale Reading, then add the Transducer Offset and the Axial Position from the Active Face.

3. Enter the following data on the Channels property page in the XM-320 Position Module Configuration Tool.

Channel 1 (Probe A) Channel 2 (Probe B)

Sensitivity 30 Sensitivity 30 Eng. Units mils Eng. Units mils Output Data Unit mils Output Data Unit mils Fault Low

Fault High

-18

-2.6

Fault Low

Fault High

DC Bias Time Constant 1 DC Bias Time Constant 1 Target Angle 90 Target Angle 90

-18.2

-2.8

Upscale Away Upscale Towards Calibration Offset 250 Calibration Offset 1000 Calibration Bias Press

Calculate Bias

Calibration Bias -33 (You

must enter value using formula below)

Mode Head-to-Head

1 This value is .2 volts below the lowest voltage the transducer will output for this measurement taken from the

calibration chart.

2 This value is .2 volts above the highest voltage the transducer will output for this measurement taken from the

calibration chart.

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54 Configuration Parameters

Transducer DC Bias 0.03 150(× 900 ) 3 –-25.5=–=

Calibration Bias Transducer DC Bias Sensitivity Calibration Offset ) sin (Target Angle)××(–=

IMPORTANT

Calibration Bias -25.5 0.03 250×()sin(90)× -33=–=

Calibration Bias Calculation

Since Probe B is gapped beyond the operating range, you must manually calculate the calibration bias as well as the transducer DC bias.

1. To determine the Transducer DC Bias, subtract Position B Gap from Transducer Offset, multiply by the Sensitivity and then add the Transducer Offset voltage.

2. Use the following formula to calculate the Calibration Bias:

The formula used to calculate the Calibration Bias depends on the Upscale setting and whether Fault High and Fault Low are less than or equal to zero (0). Press F1 on the Channels property page for a description of the formulas.

Radial Cancel Mode

In radial cancel mode, the movement of the shaft is detected by measuring the gap between the probe tip and a ramp of known and consistent angle to the center line of the shaft. If two ramps are present they should be measured as shown below. The potential "lift" error of shaft position caused by jacking oil pressure is eliminated in the module calculations.

Where only one ramp is available, the "lift" error must be taken into account, and this is achieved by using a second probe operating on a portion of the shaft which is parallel to the center line.

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Configuration Parameters 55

TIP

RADIAL CANCEL MODE (two angles)

axial movement

radial

movement

(one angle)

XM Configuration Utility

EDS Filet

Check to Enable Enabled Clear to Disable Disabled

Figure 3.4 Radial Cancel Mode

The XM-320 provides monitoring facilities for the following machine measurements when in radial cancel mode.

Alarm Parameters

Parameter Name Description Values/Comments Number (1-2) (XM Serial

Configuration Utility only)

Name (XM Serial Configuration Utility only)

Enable Enable/disable the selected alarm.

• Standard Single Ramp Differential Expansion

• Non-standard Single Ramp Differential Expansion

• Dual Ramp Differential Expansion

In radial cancel mode, all position measurements are stored in channel 1.

The Alarm parameters control the operation of the alarms (alert and danger level) and provide alarm status. The XM-320 provides two alarms, one per channel. Use these parameters to configure the alarms.

Sets the alarm to be configured in the XM Serial Configuration Utility. There are two alarms in the XM-320, one for each channel.

A descriptive name to identify the alarm in the XM Serial Configuration Utility.

Note: The Alarm Status is set to Disarm when the alarm is disabled.

Options: 1 (Channel 1 alarm)

2 (Channel 2 alarm)

Maximum 18 characters

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56 Configuration Parameters

Alarm Parameters

Parameter Name Description Values/Comments Condition Controls when the alarm should trigger.

Options: Greater Than

• Greater than - Triggers the alarm when the

measurement value is greater than or equal to the Alert and Danger Threshold values.

The Danger Threshold value must be greater than or equal to the Alert Threshold value for the trigger to occur.

• Less than - Triggers the alarm when the

measurement value is less than or equal to the Alert and Danger Threshold values.

The Danger Threshold value must be less than or equal to the Alert Threshold value for the trigger to occur.

• Inside range - Triggers the alarm when the

measurement value is equal to or inside the range of the Alert and Danger Threshold values.

The Danger Threshold (High) value must be less than or equal to the Alert Threshold (High) value AND the Danger Threshold (Low) value must be greater than or equal to the Alert Threshold (Low) value for the trigger to occur.

• Outside range - Triggers the alarm when the

measurement value is equal to or outside the range of the Alert and Danger Threshold values.

The Danger Threshold (High) value must be greater than or equal to the Alert Threshold (High) value, AND the Danger Threshold (Low) value must be less than or equal to the Alert Threshold (Low) value for the trigger to occur.

Alert Threshold (High) The threshold value for the alert (alarm) condition.

Same measurement unit as Output

Data Unit selection for specified

Note: This parameter is the greater (High) threshold

channel.

value when Condition is set to "Inside Range" or "Outside range."

Danger Threshold (High) The threshold value for the danger (shutdown)

condition.

Same measurement unit as Output Data Unit selection for specified

channel. Note: This parameter is the greater (High) threshold value when Condition is set to "Inside Range" or "Outside Range."

Alert Threshold (Low) The lesser threshold value for the alert (alarm)

condition.

Same measurement unit as Output

Data Unit selection for the specified

channel. Note: This value is not used when Condition is set to "Greater Than" or "Less Than."

Danger Threshold (Low) The lesser threshold value for the danger (shutdown)

condition.

Same measurement unit as Output

Data Unit selection for the specified

channel. Note: This value is not used when Condition is set to "Greater Than" or "Less Than."

Less Than Inside Range Outside Range

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Configuration Parameters 57

Alarm Parameters

Parameter Name Description Values/Comments Hysteresis The amount that the measurement value must fall

(below the threshold) before the alarm condition is cleared. For example, Alert Threshold = 120 and

Same measurement unit as Output

Data Unit selection for the specified

channel. Hysteresis = 2. The alarm (alert) activates when the measured value is 120 and will not clear until the measured value is 118.

Note: The Alert and Danger Thresholds use the same hysteresis value.

Note: For the Outside Range condition, the hysteresis value must be less than Alert Threshold

High – Alert Threshold Low.

Startup Period The length of time that the Threshold Multiplier is

applied to the thresholds. The startup period begins when the setpoint multiplier switch is reopened (pushbutton disengaged or toggle switch flipped to off).

Threshold Multiplier

The action to take when the setpoint multiplier switch is closed (pushbutton engaged or toggle switch flipped to on) and during the startup period once the switch is reopened. The module applies the multiplier to the alarm thresholds during this time to avoid false alarms at resonance frequencies.

Note: The multiplication may have the opposite of the intended affect under certain circumstances. For example, if the Condition is set to "Less Than" and the thresholds are positive, then multiplication of the threshold values increases the likelihood of the measured value being within the alarm range. Therefore, you may want to disable the alarms during the startup period.

Enter a value from 0 to 1092 minutes,

adjustable in increments of 0.1

minutes.

Enter any fractional value between 0

and 10.

Enter 0 (zero) to disabled the alarm

during the startup period.

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58 Configuration Parameters

IMPORTANT

XM Configuration Utility

EDS File

Check to Enable Enabled Clear to Disable Disabled

Relay Parameters

The Relay parameters control the operation of the on-board relay, as well as the relays on the Expansion Relay (XM-441) module. Use these parameters to configure which alarm(s) the relay is associated with as well as the behavior of the relay.

A relay can be defined, regardless of whether or not it is physically present. A non-physical relay is a virtual relay. When a relay (physical or virtual) activates, the module sends a Change of State (COS) message to its master, which acts on the condition as necessary. An XM-440 Master Relay Module can activate its own relays in response to a relay (physical or virtual) activation at any of its slaves.

Relay Parameters

Parameter Name Description Values/Comments Number (XM Serial Configuration

Utility only)

Sets the relay to be configured in the XM Serial Configuration Utility.

Number 1 is the on-board relay.

Numbers 2 through 5 are either relays

on the Expansion Relay module when

it’s connected to the module or virtual

relays.

Virtual relays are non-physical relays.

Use them when you want the effect of

the relay (monitor alarms, activation

delay, and change status) but do not

need an actual contact closure. For

example, a PLC or controller

monitoring the relay status.

Name (XM Serial Configuration Utility only)

Enable Enable/disable the selected relay.

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A descriptive name to help identify the relay in the XM Serial Configuration Utility.

Note: The Relay Current Status is set to "Not Activated" when the relay is disabled. See page 66.

Note: The Relay Installed parameter

indicates whether a relay is a virtual

relay or a physical relay on a module.

Maximum 18 characters

Configuration Parameters 59

XM Configuration Utility

EDS File

Latching Latching

Option

XM Configuration Utility

EDS File

Check means latching (relay must be explicitly reset)

Latching

Clear means non-latching (relay is reset once the alarm condition has passed

Nonlatching

XM Configuration Utility

EDS File

Activation Logic Logic

XM Configuration Utility

EDS File

Alarm A/B Alarm

Identifier A/B

Relay Parameters

Parameter Name Description Values/Comments

Controls whether an explicit reset is required to deactivate the relay after the alarm subsides.

Activation Delay Enter the length of time for which the Activation

Logic must be true before the relay is activated. This

reduces nuisance alarms caused by external noise and/or transient vibration events.

Sets the relay activation logic.

• A or B - Relay is activated when either Alarm A or

Alarm B meets or exceeds the selected Alarm Status condition(s).

• A and B - Relay is activated when both Alarm A

and Alarm B meet or exceed the selected Alarm Status condition(s).

• A Only - Relay is activated when Alarm A meets

or exceeds the selected Alarm Status condition(s).

Sets the alarm(s) that the relay will monitor. The alarm must be from the same device as the relay. When the Activation Logic is set to "A and B" or "A or B," you can select an alarm in both Alarm A and Alarm B. The system monitors both alarms. When the Activation Logic is set to "A only," you can select an alarm only in Alarm A.

Enter a value from 0 to 25.5 seconds,

adjustable in increments of 0.1

seconds.

Default is 1 second

Options: A only

A or B A and B

Alarm Number 1 or 2

Note: You can only select an alarm

that is enabled.

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60 Configuration Parameters

XM Configuration Utility

EDS File

Alarm Status to Activate On

Alarm Levels

XM Configuration Utility

EDS File

Check = Physical Relay

Installed = Physical Relay

Clear = Virtual Relay Not Installed =

Virtual Relay

Relay Parameters

Parameter Name Description Values/Comments

Sets the alarm conditions that will cause the relay to

Options: Normal activate. You can select more than one.

• Normal - The current measurement is not in

excess of any alarm thresholds.

• Alert - The current measurement is in excess of

the alarm level threshold(s) but not in excess of the danger level threshold(s).

• Danger - The current measurement is in excess of

Check means enable.

Clear means disable.

the danger level threshold(s).

• Disarm-The alarm is disabled or the device is in

Program mode.

• Xdcr Fault - A transducer fault is detected on the

associated transducer.

• Module Fault - Hardware or firmware failure, or

an error has been detected and is preventing proper operation of the device.

Relay Installed Indicates whether the relay is a physical relay on a

module or a virtual relay. If the relay is a physical relay, then you can set the Failsafe parameter.

Danger Xdcr Fault Alert Disarm Module Fault

If the relay is a virtual relay, the Failsafe parameter is not used or it is disabled.

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Configuration Parameters 61

XM Configuration Utility

EDS File

Failsafe Relay Failsafe

Option

XM Configuration Utility

EDS File

Check = Failsafe Failsafe Clear = Nonfail-safe Nonfailsafe

Relay Parameters

Parameter Name Description Values/Comments

Controls whether the relay is failsafe or nonfail-safe.

Failsafe operation means that when in alarm, the relay contacts are in their "normal," de-energized, or "shelf-state" positions. In other words, normally closed relays are closed in alarm, and normally open relays are open in alarm. With failsafe operation, a power failure equals an alarm.

The following are true of a relay in failsafe operation:

• The relay is energized when power is applied to

the module.

• The relay in a nonalarmed condition has power

applied to the coil.

• In alarm condition, power is removed from the

relay coil, causing the relay to change state.

For nonfail-safe operation, the following are true:

• Under nonalarm conditions, the relay closes the

circuit between the common and the N.C. (normally closed) terminals.

• Under alarm conditions, the relay changes state to

close the circuit between the common and the N.O. (normally open) terminals.

For failsafe operation, the following are true:

• Under nonalarm (with power applied to the unit)

conditions, the relay closes the circuit between the common and the N.O. terminals.

• Under alarm or loss-of-power conditions, the relay

changes state to close the circuit between the common and the N.C. terminals.

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62 Configuration Parameters

XM Configuration Utility

EDS File

Check to Enable Enabled Clear to Disable Disabled

IMPORTANT

4-20mA Output Parameters

The 4-20mA output parameters define the characteristics of the two 4-20mA output signals. The parameters are the same for each output.

4-20mA Parameters

Parameter Name Description Values/Comments Enable Enables/disables the 4-20 mA output.

Min Range The measured value associated with the 4 mA. Same measurement unit as Output Max Range The measured value associated with the 20 mA.

Data Unit selection for the specified

channel.

Measured values between Min Range and Max Range are scaled into the range from 4.0 to 20.0 to produce the output value. The Min Range value does not have to be less than the Max Range value. If the Min Range value is greater than the Max Range value, then the output signal is effectively inverted from the input signal.

The 4-20mA outputs are either on or off. When they are on, the 4-20mA outputs overshoot the 4 and 20mA limits by 10% when the measurement exceeds the minimum and maximum range. This means the minimum current produced is 3.6mA and the maximum current produced is 22mA.

When the 4-20mA outputs are off, they produce a current approximately 2.9mA. The 4-20mA outputs are off under the following conditions:

• The 4-20mA outputs are set to "Disable" (see Enable above).

• The module is in Program mode.

• A transducer fault occurs that affects the corresponding

measurement.

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Configuration Parameters 63

IMPORTANT

Triggered Trend Parameters

The XM-320 can collect a triggered trend. A triggered trend is a time-based trend that is collected when a relay on the XM-320 is activated, or the module receives a trigger event.

Once the triggered trend is configured, the XM-320 continuously monitors the trended measurements. When a trigger occurs, the XM-320 collects additional data as specified by the Post Trigger parameter.

The XM-320 can only store one triggered trend. Unless the triggered trend is latched, the trend data is overwritten with new data when the next trigger occurs.

The triggered trend parameters define the trend data that is collected by the module. Use these parameters to select the measurements included in the trend records, the interval between trend records, and which relay triggers (activates) the collection of the trend data.

The Triggered Trend parameters are not included in the EDS file and cannot be edited using generic configuration tools such as RSNetWorx for DeviceNet.

Parameter Name Description Values/Comments Enable Triggered Trend

Measurements

Select Measurements Sets the measurements to be collected and stored in

Number of Records The maximum number of measurement sets that can

Latch Enable Determines whether the trigger trend is latched or

Enable/disable the triggered trend measurements. Select to configure the triggered trend measurements.

the module.

be collected in the trend buffer. The measurement sets make up the trend data.

unlatched.

Latched means that subsequent triggers are ignored after the initial trigger. This prevents the trend data from being overwritten with new data until the trigger is manually reset (click Reset Trigger button).

Unlatched means that the trend data is overwritten with new data every time a trigger occurs.

Check to enable. Clear to disable.

More than one measurement can be selected.

The Number of Records is automatically calculated based upon the number of Trended Measurements selected.

Check means latched Clear means unlatched

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64 Configuration Parameters

Triggered Trend Parameters

Parameter Name Description Values/Comments Relay Number Sets the relay that triggers the trend to be collected. None means that the trend can only be

triggered manually or by a trigger event (for example, XM-440).

Relay Number 1 is the on-board relay. Numbers 2 through 5 are either relays on the Expansion Relay module when it’s connected to the module or virtual relays.

Note: The relay must be enabled. Refer to Relay Parameters on page 58.

Record Interval The amount of time between consecutive trend

1 to 3600 seconds

records.

Note: If you enter a Record Interval, the Trend Span is automatically updated.

Trend Span The total amount of time that can be covered by the

Seconds

trend data (Number of Records x Record

Interval).

Note: If you edit the Trend Span, the Record Interval is automatically updated.

Post Trigger The percentage of records to be collected once the

0 to 100 Percent trigger occurs. For example, if you set Post Trigger to 20%, then 80% of the records in the trend are before the trigger occurs, and 20% of the records in the trend are after the trigger occurs.

This allows you to evaluate what happened after the trigger occurred.

Status Shows the status of the trend data. Possible status values:

• Not collected - No trend data is

currently collected.

• Collecting - A trigger has occurred

and data (including post-trigger data) is being collected.

• Collected - A trend has been saved

to the buffer and is available to view and upload.

View Trend Data Displays a plot of the collected trend data. Reset Trigger Resets the trigger if Latch enabled is selected. This

allows the module to overwrite the previous trend data when the next trigger occurs.

Manual Trigger Triggers the module to collect the trend data without

relay activation.

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Configuration Parameters 65

IMPORTANT

XM Configuration Utility

EDS File

Poll Output Poll

Response Assembly

I/O Data Parameters

The I/O data parameters are used to configure the content and size of the DeviceNet I/O Poll response message.

The XM module must be free of Poll connections when configuring the Poll Output (Poll Response Assembly) and Poll Size. Any attempt to download the parameters while a master device has established the Poll connection with the XM module will result in an error.

To close an existing Poll connection with an XM-440, switch the XM-440 from Run mode to Program mode. Refer to Changing Operation Modes on page 73.

To close an existing Poll connection with other master devices, remove the module from the scan list or turn off the master device.

I/O Data Parameters

Parameter Name Description Values/Comments COS Size (XM Serial

Configuration Utility only) COS Output (XM Serial

Configuration Utility only)

Poll Size The size (number of bytes) of the Poll response

The size (number of bytes) of the Change of State (COS) message.

The Assembly instance used for the COS message. The COS message is used to produce the Alarm and Relay status for the module.

message.

The COS Size cannot be changed.

The COS Output cannot be changed.

Refer to COS Message Format on

page 78 for more information.

Assembly Instance Table (XM Serial Configuration Utility only)

Custom Assembly (XM Serial Configuration Utility only)

Sets the Assembly instance used for the Poll response message. Each Assembly instance contains a different arrangement of the Poll data.

The Poll response message is used by the XM module to produce measured values. It can contain up to 31 REAL values for a total of 124 bytes of data.

Displays the format of the currently selected COS or Poll Assembly instance.

Defines a custom data format for the Poll response. The custom assembly can contain any of the measurement parameters included in Assembly instance 101, as well as alarm and relay configuration parameters.

Options: Assembly Instance 101

Custom Assembly

Refer to Poll Message Format on page

77 for more information.

The highlighted (yellow) Assembly

structure bytes are included in the I/O

message.

You can select up to 20 parameters.

Refer to Poll Message Format on page

77 for more information.

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66 Configuration Parameters

TIP

XM Configuration Utility

EDS File

Transducer Fault Transducer

Status

Data Parameters

The Data parameters are used to view the measured values of the input channels and the 4–20mA outputs, as well as to monitor the status of the channels, alarms, and relays.

To view all the data parameters in the XM Serial Configuration Utility, click the View Data tab.

Channel Data

Channel Data Parameters

Parameter Name Description Values/Comments Channel Status States whether a fault condition exists. If a fault

exists, the measurement value may not be accurate.

Measurement Value Shows the current measurement value for the

channel. States whether a transducer fault exists. Possible status values: No Fault

Fault

Transducer DC Bias

4-20mA Output A and B (XM Serial Configuration Utility only)

Shows the measured average DC offset of the transducer signal. This value is compared with Fault High and Fault Low to determine whether the transducer is working properly.

Shows the current output value in the range of 4.0 to

20.0mA.

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Configuration Parameters 67

Alarm and Relay Status

Alarm and Relay Status Parameters

Parameter Name Description Values/Comments Alarm Status States the current status of the alarm. Possible status values.

• Normal - The alarm is enabled, the

device is in Run mode, there is no transducer fault, and the current measurement is not within the Alert or Danger Threshold value(s).

• Alert - The alarm is enabled, the

device is in Run mode, there is no transducer fault, and the current measurement is in excess of the Alert Threshold value(s) but not in excess of the Danger Threshold value(s).

• Danger - The alarm is enabled, the

device is in Run mode, there is no transducer fault, and the current measurement is in excess of the Danger Threshold value(s).

• Disarm-The alarm is disabled or the

device is in Program mode.

• Transducer Fault - The alarm is

enabled, the device is in Run mode, and a transducer fault is detected on the associated transducer.

• Module Fault - Hardware or

firmware failure, or an error has been detected and is preventing proper operation of the device.

Relay Status States the current status of the relay. Possible status values: Activated

Not Activated

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68 Configuration Parameters

IMPORTANT

Device Mode Parameters

The Device Mode parameters are used to control the functions and the behavior of the device.

The XM Serial Configuration Utility handles these parameters automatically and transparently to the user.

Device Mode Parameters

Parameter Name Description Values/Comments Device Mode Sets the current operation mode of the device. Refer

to Changing Operation Modes on page 73 for more information.

Autobaud Enables/disables autobaud.

When autobaud is set to "Enabled," the module will listen to other devices on the network to determine the correct baud rate to use for communications. When autobaud is set to "Disabled," the module baud rate must be set manually.

Options: Run Mode

Options: Enabled

Program Mode

Disabled

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Appendix

Specifications

Appendix A lists the technical specifications for the XM-320 Position Module.

XM-320 Technical Specifications

Product Feature Specification

Communications

DeviceNet

Standard DeviceNet protocol for all functions

NOTE: The XM-320 uses only the DeviceNet protocol, not power. Module power is provided independently.

Available Electronic Data Sheet (EDS) file provides support for most DeviceNet compliant systems Baud rate automatically set by bus master to 125kb, 250kb, 500kb

Inputs

Side Connector

Serial

2 Channels

Transducer Power

Voltage Range

All XM measurement and relay modules include side connectors that allow interconnecting adjacent modules, thereby simplifying the external wiring requirements. The interconnect provides primary power, DeviceNet communications, and the circuits necessary to support expansion modules, such as the XM-441 Expansion Relay module.

RS-232 via mini-connector or terminal base unit Baud rate fixed at 19200

NOTE: Local configuration via Serial Configuration Utility.

Eddy current transducer signals Linear variable differential transformer Voltage signals from any position measurement sensor

Isolated 24 Volts that can be wired to be either +24V or -24V

Selectable in software between -24V and +24V

Sensitivity

Input Impedance

69 Publication GMSI10-UM005C-EN-P - May 2010

User configurable in software

Greater than 100kohm

70 Specifications

XM-320 Technical Specifications

Product Feature Specification

Outputs

4-20mA Outputs

Two isolated outputs 600 ohm max load

Buffered Outputs

2 outputs; 1 per channel

Indicators

6 LEDs Module Status - red/green

Network Status - red/green Channel 1 Status - yellow/red Channel 2 Status - yellow/red Setpoint Multiplier - yellow Relay - red

Measurement Modes Normal (two independent channels)

Head-to-head Radial cancel

Delta Time Buffer

Number of Records

Delta Time Interval

Trigger Mode

2048

1 to 3600 seconds

Relay on the XM-320 module is activated, or by a trigger event (for example, DeviceNet command from a controller or host)

The data collected in the buffer is user configurable.

Alarms

Number

2 alarm and danger pairs

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Startup Inhibit/Setpoint Multiplication

Relays

Operators

Greater than Less than Inside range Outside range

Hysteresis

User configurable in software

Period: 0 to 1092 minutes, adjustable in 0.1 minute increments Inhibit/multiplication function: Multiply by N (0 to 10, 0 = Disarm)

Number Single on-board relay, two sets of contacts -

DPDT (2 Form C) Four additional relays when interconnected to an XM-441 Expansion Relay module, or Four virtual relays whose status can be used by remote Control Systems or the XM-440 Master Relay module

XM-320 Technical Specifications

Product Feature Specification

On-board Relay Rating

Maximum Voltage: 125V dc, 125V ac Maximum Current: 3.5A* Minimum Current: 0 Maximum Power: 60W, 62.5VA

*Max current is up to 40°C, then derates to 2A at

65°C.

Agency Rating: 120V ac @ 0.5A 110V dc @ 0.3A 30V dc @ 1.0A

Specifications 71

Failsafe

Normally energized (failsafe), or Normally de-energized (non-fail-safe)

Latching

Latching, or Non-latching

Time Delay

0 to 25.5 seconds, adjustable in 100msec increments

Voting Logic

Single or paired "And" or "Or" logic applied to any alarm

Reset

Local reset switch on top of module Remote reset switch wired to terminal base Digital reset command via serial or DeviceNet interface

Activation On

Alarm Status:

Normal Alert Danger Disarm Transducer fault Module fault

Non-Volatile Configuration A copy of the module configuration is

retained in non-volatile memory from where it is loaded upon power up*.

Power

Module

Consumption

*The configuration stored in non-volatile

memory can be deleted only by a module-reset command sent via the serial interface, using the Serial Configuration Utility, or via DeviceNet from any compliant software application.

+21.6 to 26.4V dc

Maximum: 200mA Typical: 165mA

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72 Specifications

UL UL Listed for Ordinary

Locations

UL UL Listed for Class I, Division 2

Group A, B, C, and D Hazardous Locations

CSA CSA Certified Process Control

Equipment

CSA CSA Certified Process Control

Equipment for Class I, Division 2 Group A, B, C, and D Hazardous Locations

EEX* European Union 94/9/EEC ATEX

Directive, compliant with EN 50021; Potentially Explosive Atmospheres, Protection “n”

CE* European Union 89/336/EEC

EMC Directive

C-Tick* Australian

Radiocommunications Act, compliant with: AS/NZS 2064, Industrial Emissions

XM-320 Technical Specifications

Product Feature Specification

Heat Production

Maximum: 5.28 Watts (18 BTU/hr) Typical: 3.96 Watts (13.5 BTU/hr)

Transducer

Environmental

Operating Temperature

Storage Temperature

Relative Humidity

Physical

Dimensions

Terminal Screw Torque

Approvals (when product or packaging is marked)

Isolated 24V dc, user configurable with wiring

-20 to +65°C (-4 to +149°F)

-40 to +85°C (-40 to +185°F)

95% non-condensing

All printed circuit boards are conformally coated in accordance with IPC-A-610C.

Height: 3.8in (97mm) Width: 3.7in (94mm) Depth: 3.7in (94mm)

7 pound-inches (0.6Nm)

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*See the Product Certification link at

www.rockwellautomation.com for Declarations of Conformity, Certificates and other certification details.

DeviceNet Information

IMPORTANT

Appendix

Electronic Data Sheets

Changing Operation Modes

Electronic Data Sheet (EDS) files are simple text files used by network configuration tools such as RSNetWorx (Version 3.0 or later) to help you identify products and easily commission them on a network. The EDS files describe a product’s device type, product revision, and configurable parameters on a DeviceNet network.

The EDS files for the XM modules are installed on your computer with the XM configuration software. The latest EDS files can also be obtained at http://www.ab.com/networks/eds/ or by contacting your local Rockwell Automation representative.

Refer to your DeviceNet documentation for instructions on registering the EDS files.

XM modules operate in two modes.

Mode Description

Run The XM measurement modules collect measurement data and

monitor each measurement device. The XM-440 establishes I/O connections with the XM measurement modules in its scan list and monitors their alarms, and controls its own relay outputs accordingly.

Program The XM module is idle.

The XM measurement modules stop the signal processing/measurement process, and the status of the alarms is set to the disarm state to prevent a false alert or danger status. The XM-440 closes the I/O connections with the XM measurement modules in its scan list and stops monitoring their alarms; relays are deactivated unless they are latched. Configuration parameters can be read, updated and downloaded to the XM module.

To change the operation mode of the module, use the Device Mode parameter in the EDS file. Note that the Stop and Start services described on page 75 can also be used to change the operation mode.

The XM Serial Configuration Utility software automatically puts XM modules in Program mode and Run mode without user interaction.

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74 DeviceNet Information

TIP

Transition to Program Mode

Parameter values can only be downloaded to an XM module while the module is in Program mode. Any attempt to download a parameter value while the module is in Run mode will result in a Device State Conflict error.

To transition an XM module from Run mode to Program mode on a DeviceNet network, set the Device Mode parameter to "Program mode" and click Apply. Note that you cannot change any other parameter until you have downloaded the Program mode parameter.

The Module Status indicator flashes green when the module is in Program mode.

Refer to your DeviceNet documentation for specific instructions on editing EDS device parameters.

You can also use the Stop service described on page 75 to transition XM modules to Program mode.

Transition to Run Mode

In order to collect data and monitor measurement devices, XM modules must be in Run mode. To transition an XM module from Program mode to Run mode on a DeviceNet network, set the Device Mode parameter to "Run mode" and click Apply.

The Module Status indicator is solid green when the module is in Run mode.

Refer to your DeviceNet documentation for specific instructions on editing EDS device parameters.

You can also use the Start service described on page 75 to transition XM modules to Run mode.

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DeviceNet Information 75

XM Services

Action

Transition to Run Mode Start

Transition to Program Mode Stop

Save configuration to non-volatile memory (EEPROM)

Delete saved configuration from non-volatile memory (EEPROM)

Reset a specific latched relay Reset

Reset all latched relays Reset

The table below defines the services supported by the XM modules. The table includes the service codes, classes, instances, and attributes by their appropriate hexadecimal codes. Use the Class Instance Editor in RSNetWorx to execute these services, as illustrated in the example below.

Service Code (Hex)

(06)

(07) Save

(16) Delete

(09)

(05)

Class (Hex) Instance Attribute Data

Device Mode Object (320)

Relay Object (323)

1 None None

Relay number 1-C for XM-440, 1-5 for XM-12X, XM-320 and XM-220, 1-8 for XM-36X and XM-16X

0 None None

None None

Reset the Peak Speed (XM-12X only)

Close the virtual setpoint multiplier switch to activate the alarm setpoint multipliers (not applicable to all XM modules)

Open the virtual setpoint multiplier switch to start the setpoint multiplier timers and eventually cancel alarm setpoint multiplication (not applicable to all XM modules)

Reset (05)

Other (33)

Other (32)

Speed Measurement Object (325)

Discrete Input Point Object (08)

1, 2 for XM-220 None None

1 None None

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76 DeviceNet Information

Select the Save

service code

Clear Send the attribute ID and then enter the Class (320

hex

) and

Instance (1)

Click Execute to initiate the action

Example

To save the configuration parameters to the non-volatile memory (EEPROM), fill in the Class Instance Editor as shown below.

Invalid Configuration Errors

A Start or Save service request to an XM module may return an Invalid Device Configuration error when there is a conflict amongst the configuration settings.

The general error code for the Invalid Device Configuration error is D0

hex

An additional error code is returned with the general error code to specify which configuration settings are invalid. The table below lists the additional error codes associated with the Invalid Device Configuration error.

Additional Error Codes returned with the Invalid Device Configuration Error (0xD0)

Error Code (Hex) Description

01 No specific error information is available. 02 Mismatched transducer, channel, and/or measurement unit. 03 Inverted transducer fault high/low values. 04 Alarm thresholds conflict with the alarm condition. 05 Alarm speed range is invalid. 06 Band minimum frequency is greater than maximum frequency. Or,

07 Relay is associated with an alarm that is not enabled. 08 Tachometer must be enabled for alarm or channel settings. 09 A senseless speed range is enabled on a speed alarm.

maximum frequency is greater than FMAX.

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DeviceNet Information 77

Additional Error Codes returned with the Invalid Device Configuration Error (0xD0)

Error Code (Hex) Description

0A Too many alarms associated with a single measurement. 0B Invalid node address in the alarm list. 0C Too many alarms in the alarm list. Or, no alarms in the alarm list. 0D Alarm levels cannot be zero for alarms that are enabled. 0E Too many slaves in the scanner’s input data table. 0F The FMAX and Number of Lines do not yield correct vector calculations. 10 Phase (vector) alarms prohibited with synchronous sampling and more

than 1 tachometer pulse per revolution. 11 Order-base bands are prohibited on asynchronous channel. 12 Unsupported Sensor Type and Channel ID combination. 13 Invalid Alarm Type for the associated measurement ID. 14 Synchronous sampling is required for alarm on synchronous

measurements. 15 Integration is not supported with the Bypass High Pass Filter option.

XM-320 I/O Message Formats

The XM-320 module supports Poll, Change of State (COS), and Bit-Strobe I/O messages. The Poll response message is used by the XM module to produce measured values, and the COS message is used to produce the Alarm

and Relay Status. The Bit-Strobe message is used by a master device to send a trigger event to all the XM slaves on the network.

Poll Message Format

The XM-320 Poll request message contains no data. The Poll response message can contain up to 31 REAL values for a total of 124 bytes.

The XM-320 module provides one pre-defined (static) data format of the Poll response, as defined in Assembly instance 101. It also provides a dynamic Assembly instance, instance 199, with which you can define a custom data format for the Poll response. The dynamic Assembly instance can contain any of the measurement parameters included in Assembly instance 101, as well as several of the alarm and relay configuration parameters.

The default Assembly instance is 101 and the default size is 8 bytes. You can change the Assembly instance and define the custom Assembly instance using the configuration software. Refer to I/O Data Parameters on page 65.

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78 DeviceNet Information

The Poll response data can also be requested explicitly through Assembly Object (Class ID 0x4), Instance 101 (0x65), Data Attribute (3).

The following table shows the static data format of Assembly instance 101.

XM-320 I/O Poll Response Message Format

Byte Definition

0–3 Channel 1 Position measurement value 4–7 Channel 2 Position measurement value

COS Message Format

The XM-320 COS message contains five bytes of data as defined in the table below. The COS data can also be requested explicitly through Assembly

Object (Class ID 0x4), Instance 100 (0x64), Data Attribute (3).

XM-320 COS Message Format

Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

0 Relay 1

Status

1 Relay 2

Status

2 Relay 3

Status

3 Relay 4

Status

4 Relay 5

Status

Setpoint Multiplier Status

Reserved Reserved Reserved

Alarm 2 Status Alarm 1 Status

XM Status Values

The following tables describe the XM Status values that are included in the COS messages.

Alarm Status Descriptions

Alarm Status Value Description

0Normal

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1Alert 2 Danger 3Disarm 4 Transducer Fault (Sensor OOR)

Alarm Status Descriptions

Alarm Status Value Description

5 Module Fault 6 Tachometer Fault 7 Reserved

Setpoint Multiplier Status Descriptions

Setpoint Multiplier Status Value Description

0 Not Activated 1 Activated

Relay Status Descriptions

Relay Status Value Description

0Not Activated 1Activated

DeviceNet Information 79

Bit-Strobe Message Format

The Bit-Strobe command sends one bit of output data to each XM slave whose node address appears in the master’s scanlist.

The Bit-Strobe command message contains a bit string of 64 bits (8 bytes) of output data, one output bit per node address on the network. One bit is assigned to each node address supported on the network (0...63) as shown in Figure B.1.

Figure B.1 Bit-Strobe Command

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80 DeviceNet Information

IMPORTANT

TIP

The XM modules use the bit received in a Bit-Strobe connection as a trigger event. When the bit number corresponding to the XM module’s node address is set, the XM module will collect the triggered trend data.

Note that the XM modules do not send data in the Bit-Strobe response.

ADR for XM Modules

Automatic Device Replacement (ADR) is a feature of an Allen-Bradley DeviceNet scanner. It provides a means for replacing a failed device with a new unit, and having the device configuration data set automatically. Upon replacing a failed device with a new unit, the ADR scanner automatically downloads the configuration data and sets the node address.

It is recommended that ADR not be used in safety related applications. If the failure of the ADR server, and a subsequent power cycle, would result in the loss of protection for a machine, then ADR should not be implemented.

ADR can be used with XM modules but keep the following in mind when setting up the XM modules.

• The ADR scanner can not download the configuration data to an XM

module if the module has a saved configuration in its non-volatile memory. This happens because the saved configuration is restored and the module enters Run mode when the power is cycled. (Configuration parameters cannot be downloaded while an XM module is in Run mode.) XM modules must be in Program mode for the ADR configuration to be downloaded and this occurs only when there is no saved configuration.

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To delete a saved configuration from non-volatile memory, use the Delete service in RSNetWorx for DeviceNet or perform the following steps in the XM Serial Configuration Utility.

1. Save the current configuration to a file. From the File menu, click Save As and enter a file name for

the configuration.

2. Reset the module to factory defaults. Click the Module tab and click the Reset button.

3. Reload the saved configuration. From the File menu, click Open and select the configuration file.

4. Make certain to disable auto save. From the Device

menu, clear the Auto Save Configuration check mark.

DeviceNet Information 81

• An XM module will enter Run mode automatically after the ADR

scanner restores the module’s configuration only if the module is in Run mode at the time the configuration is saved to the scanner. If the module is in Program mode when the configuration is saved, then the module will remain in Program after the configuration is downloaded by the ADR scanner.

• The ADR scanner saves and restores only the configuration parameters

contained in the module’s EDS file. Some XM parameters are not included in the EDS file because they are not supported by either the EDS specification or the tools that read the EDS files, for example RSNetWorx for DeviceNet. These configuration parameters will not be restored with ADR.

Below is a list of the configuration parameters that are not included in the EDS file and can not be saved or restored with ADR.

– Channel Name

– Tachometer Name

– Alarm Name

– Relay Name

– All Triggered Trend related parameters (see page 63)

– All SU/CD Trend related parameters

– Custom Assembly structure (see page 65)

• The ADR and trigger group functions cannot be used together. A

module can have only one primary master so a module cannot be both configured for ADR and included in a trigger group. The ADR scanner must be the primary master for the modules configured for ADR. The XM-440 Master Relay module must be the primary master for modules included in a trigger group.

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Appendix

TIP

DeviceNet Objects

Appendix C provides information on the DeviceNet objects supported by the XM-320 module.

For information about See page

Identity Object (Class ID 01H) 84 DeviceNet Object (Class ID 03H) 85 Assembly Object (Class ID 04H) 87 Connection Object (Class ID 05H) 90 Discrete Input Point Object (Class ID 08H) 92 Analog Input Point Object (Class ID 0AH) 93 Parameter Object (Class ID 0FH) 95 Acknowledge Handler Object (Class ID 2BH) 98 Alarm Object (Class ID 31DH) 99 Device Mode Object (Class ID 320H) 101 Relay Object (Class ID 323H) 102 Transducer Object (Class ID 328H) 105 4-20mA Output Object (Class ID 32AH) 106

Refer to the DeviceNet specification for more information about DeviceNet objects. Information about the DeviceNet specification is available on the ODVA web site (http://www.odva.org).

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84 DeviceNet Objects

Identity Object (Class ID 01

)

The Identity Object provides identification and general information about the device.

Class Attributes

The Identity Object provides no class attributes.

Instance Attributes

Table C.1 Identity Object Instance Attributes

Access

Attr ID

1 Get Vendor ID UINT 668 = Entek 2 Get Device Type UINT 109 (Specialty I/O) 3 Get Product Code UINT 23 (0x17) XM-320 4 Get Revision:

5 Get Status WORD

Rule Name Data Type Default Value

STRUCT OF Major Minor

USINT

Value varies with each firmware revision. Value varies with each firmware revision.

6 Get Serial Number UDINT 7 Get Product Name SHORT_

STRING

Status

The Status is a 16 bit value. The following bits are implemented.

Table C.2 Identity Object Status

Bit Name Description

0 Owned TRUE indicates that the module has an owner. More

specifically, the Predefined Master/Slave Connection Set

has been allocated to a master. 1 Reserved, set to 0 2 Configured This bit is set whenever a saved configuration is

successfully loaded from non-volatile memory. This bit is

cleared whenever the default configuration is restored or

loaded. 3 Reserved, set to 0

"XM-320 Position Module"

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DeviceNet Objects 85

Table C.2 Identity Object Status

Bit Name Description

4 Boot Program Vendor-specific, indicates that the boot program is

running. The Main Application must be corrupt or

missing. 5 - 7 Vendor-specific, not implemented 8 Minor Recoverable

Fault

9 Minor Unrecoverable

Fault

10 Major Recoverable

Fault

11 Major Unrecoverable

Fault

12 - 15 Reserved, set to 0

Set whenever there is a transducer or tachometer fault.

Not implemented

Set when the module detects a major problem that the

user may be able to recover from. The Module Status

LED will flash red. An example of this condition is when

the boot program is running.

Set when there is a module status fault (Module Status

LED is solid red).

Services

Table C.3 Identity Object Services

Service Code Class/Instance Usage Name

01 05 0E 10

Instance Get_Attributes_All Instance Reset Instance Get_Attribute_Single Instance

Set_Attribute_Single

DeviceNet Object (Class ID 03

)

1 Attributes can only be set while the device is in Program Mode. See the description of the Device Mode Object

for more information.

The DeviceNet Object is used to provide the configuration and status of a physical attachment to DeviceNet.

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86 DeviceNet Objects

Class Attributes

Table C.4 DeviceNet Object Class Attributes

Access

Attr ID

1 Get Revision UINT 2

Rule Name Data Type Default Value

Instance Attributes

Table C.5 DeviceNet Object Instance Attributes

Access

Attr ID

1 Get/Set

2 Get/Set

3 Get Bus-Off Interrupt BOOL 0 4 Get/Set Bus-Off Counter USINT 0

Rule Name Data Type Default Value

MAC ID

Baud Rate

USINT 63

USINT 0

5 Get Allocation Information STRUCT of

BYTE USINT

100 Get/Set Autobaud Disable BOOL 0 (Ignore attribute 2 and always autobaud)

1 Setting the MAC ID causes the device to reset automatically, after which it will go online with the new MAC

ID.

2 The Baud Rate setting can not be set while Autobaud Disable is equal to 0. The new baud rate will not take

effect until the module is reset.

0 255

The MAC ID, Baud Rate, and Autobaud Disable settings are stored in non-volatile memory so they do not reset to the default with each power cycle. The Baud Rate attribute supports the following settings:

• 0 = 125 kbps

• 1 = 250 kbps

• 2 = 500 kbps

The Baud Rate setting is used only when automatic baud rate detection is disabled (Autobaud Disable = 1). When Autobaud Disable is set to zero (0), the module ignores its Baud Rate setting and performs automatic baud rate detection instead. This means that the module will determine the network baud rate by listening for network traffic before attempting to go online.

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DeviceNet Objects 87

Services

Table C.6 DeviceNet Object Services

Service Code Class/Instance Usage Name

1 Attributes can only be set while the device is in Program Mode. See the description of the Device Mode Object

for more information.

Class/Instance Get_Attribute_Single Instance

Instance Allocate_Master/Slave_Connetion_Set Instance Release_Group_2_Identifier_Set

Set_Attribute_Single

Assembly Object (Class ID 04

)

Table C.7 Assembly Object Class Attributes

Attr ID

1 Get Revision UINT Revision of the

The Assembly Object binds attributes of multiple objects to allow data to or from each object to be sent or received in a single message.

The XM-320 module provides both static and dynamic assemblies.

Class Attributes

Access Rule Name Data Type Description Semantics

implemented object.

Instances

Table C.8 Assembly Object Instances

Instance Name Type Description

100 Default COS Message Input Alarm and Relay Status values 101 Default Poll Response

Message

102 - 106 Alternate Poll Response

Message

Input Measurement values

199 Alternate Dynamic Poll

Response Message

Input User configurable

measurement values and configuration parameters

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88 DeviceNet Objects

Table C.9 Assembly Object Instance Attributes

Attr ID

1 Get Number of Members in list UINT Only supported for Dynamic Assembly

2 Set Member List Array of STRUCT: Only supported for Dynamic Assembly

3 Get Data Defined in tables

Instance Attributes

Access Rule Name Data Type Value

instance

instance Member Data Description UINT Size of member data value in bits Member Path Size UINT Member Path Packed EPATH

on the following pages.

Assembly Instance Attribute Data Format

Instance 100 - Alarm and Relay Status

This assembly is sent using COS messaging when any of the Alarm or Relay Status values change.

Table C.10 Instance 100 Data Format (Alarm and Relay Status Values Assembly)

Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

0 Relay 1

Status

1 Relay 2

Status

2 Relay 3

Status

3 Relay 4

Status

4 Relay 5

Status

Set Point Multiplier

00 0

Alarm 2 Status Alarm 1 Status

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DeviceNet Objects 89

Instance 101 - Measurement Values

This is the default assembly instance that is sent using the I/O Poll Response message when an I/O Poll Request is received from a DeviceNet Master.

Table C.11 Instance 101 Data Format (Measurement Values Assembly)

Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

0 - 3 Transducer 1 Position value 4 - 7 Transducer 2 Position value

Instance 199 - Dynamic Assembly

This Assembly instance can be created and configured with the XM Serial Configuration Utility or RSMACC Enterprise Online Configuration Utility. Using the configuration software, you determine the format of the data. This assembly instance can be selected to be sent in response to an I/O Poll request from a Master.

The dynamic Assembly can include all of the measurement values included in Assembly instance 101. In addition, the dynamic Assembly can include the following configuration parameters.

Table C.12 Instance 199 Component Mapping

EPATH (where ii = instance number)

21 1D 03 24 ii 30 04 Alarm 31D 21 1D 03 24 ii 30 07 Alarm 31D 21 1D 03 24 ii 30 08 Alarm 31D 21 1D 03 24 ii 30 09 Alarm 31D

21 1D 03 24 ii 30 0A Alarm 31D 21 1D 03 24 ii 30 0B Alarm 31D 21 1D 03 24 ii 30 0C Alarm 31D 21 1D 03 24 ii 30 0D Alarm 31D

21 1D 03 24 ii 30 0E Alarm 31D 21 23 03 24 ii 30 04 Relay 323 21 23 03 24 ii 30 05 Relay 323 21 23 03 24 ii 30 06 Relay 323 21 23 03 24 ii 30 07 Relay 323 21 23 03 24 ii 30 09 Relay 323

Class Name

Class Number

Instance Number

1 - 2 Alarm Enable 4 BOOL 1 - 2 Condition 7 USINT 1 - 2 Alert Threshold (High) 8 REAL 1 - 2 Danger Threshold

Attribute Name

Attribute Number

Data Ty pe

9REAL

(High)

1 - 2 Hysteresis 12 REAL

1 - 2 Alert Threshold Low 10 REAL 1 - 2 Danger Threshold Low 11 REAL

1 - 2 Threshold (Set Point)

13 REAL

Multiplier

1 - 5 Failsafe Enable 6 BOOL

1 - 16 Startup Period 14 UINT 1 - 5 Relay Enable 4 BOOL 1 - 5 Latch Enable 5 BOOL

1 - 5 Delay 7 UINT 1 - 5 Alarm Level 9 BYTE

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90 DeviceNet Objects

Table C.12 Instance 199 Component Mapping

EPATH (where ii = instance number)

21 0F 00 24 ii 30 01 Param 0F

21 23 03 24 ii 30 0C Relay 323 21 23 03 24 ii 30 0E Relay 323

Class Name

Class Number

The dynamic Assembly instance must be instantiated with a call to the class level Create service. Then the structure can be defined with the Set_Attribute_Single service for the Member List attribute. Only one dynamic Attribute instance is supported so subsequent calls to the Create service will return a Resource Unavailable (0x02) error. The Delete service can be used to destroy the dynamic Assembly instance so that it can be re-created.

Services

Table C.13 Assembly Object Services

Instance Number

6 - 10 Parameter Value

11 - 15 Parameter Value

1 - 5 Logic 12 USINT 1 - 5 Relay Installed 14 BOOL

Attribute Name

(Alarm Identifier A)

(Alarm Identifier B)

Attribute Number

1USINT

Data Ty pe

Connection Object (Class ID 05

)

Service Code Class/Instance Usage Name

0E 10 08 09

Class/Instance Get_Attribute_Single Instance Set_Attribute_Single Class Create Instance Delete

The Connection Object allocates and manages the internal resources associated with both I/O and Explicit Messaging Connections.

Class Attributes

The Connection Object provides no class attributes.

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Instances

Table C.14 Connection Object Instances

Instance Description

1 Explicit Message Connection for pre-defined connection set 2 I/O Poll Connection 3 I/O Strobe Connection 4 I/O COS (change of state) Connection 11 - 17 Explicit Message Connection

Instance Attributes

Table C.15 Connection Object Instance Attributes

Access

Attr ID

1 Get State USINT State of the object.

Rule Name Data Type Description

DeviceNet Objects 91

2 Get Instance Type USINT Indicates either I/O or Messaging

Connection.

3 Get Transport Class Trigger BYTE Defines behavior of the Connection. 4 Get Produced Connection ID UINT Placed in CAN Identifier Field when the

Connection transmits.

5 Get Consumed Connection IDUINT CAN Identifier Field value that denotes

message to be received.

6 Get Initial Comm

Characteristics

7 Get Produced Connection

Size

8 Get Consumed Connection

Size

9 Get/Set Expected Packet Rate UINT Defines timing associated with this

12 Get/Set Watchdog Time-out

Action

13 Get Produced Connection

Path Length

14 Get Produced Connection

Path

BYTE Defines the Message Group(s) across

which productions and consumptions

associated with this Connection occur.

UINT Maximum number of bytes transmitted

across this Connection.

UINT Maximum number of bytes received across

this Connection.

Connection.

USINT Defines how to handle Inactivity/Watchdog

timeouts.

UINT Number of bytes in the

production_connection_path attribute.

Array of USINT

Specifies the Application Object(s) whose

data is to be produced by this Connection

Object. See DeviceNet Specification

Volume 1 Appendix I.

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92 DeviceNet Objects

Table C.15 Connection Object Instance Attributes

Access

Attr ID

Rule Name Data Type Description

15 Get Consumed Connection

Path Length

16 Get Consumed Connection

Path

17 Get Production Inhibit Time UINT Defines minimum time between new data

UINT Number of bytes in the

consumed_connection_path attribute.

Array of USINT

Specifies the Application Object(s) that are

to receive the data consumed by this

Connection Object. See DeviceNet

Specification Volume 1 Appendix I.

production.

Services

Table C.16 Connection Object Services

Service Code Class/Instance Usage Name

05 0E 10

Instance Reset Instance Get_Attribute_Single Instance Set_Attribute_Single

Discrete Input Point Object (Class ID 08

)

Table C.17 Discrete Input Object Class Attributes

Access

Attr ID

1 Get Revision UINT Revision of the

Rule Name Data Type Description Semantics

The Discrete Input Point Object stores information about the value of the Setpoint Multiplier signal.

Class Attributes

implemented object.

Publication GMSI10-UM005C-EN-P - May 2010

Rockwell Automation 1440-TPS02-01RB User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Introduction

Introducing the XM-320 Position Module

XM-320 Module Components

Using this Manual

Organization

Document Conventions

Installing the XM-320 Position Module

XM Installation Requirements

Wiring Requirements

Power Requirements

Grounding Requirements

Mounting the Terminal Base Unit

DIN Rail Mounting

Interconnecting Terminal Base Units

Panel/Wall Mounting

Connecting Wiring for Your Module

Terminal Block Assignments

Connecting the Power Supply

Connecting the Relays

Connecting the Short Circuit Protected Output

Connecting the Remote Relay Reset Signal

Connecting the Setpoint Multiplication Switch

Connecting the 4-20mA Outputs

Connecting the Transducer

PC Serial Port Connection

DeviceNet Connection

Mounting the Module

Module Indicators

Basic Operations

Powering Up the Module

Manually Resetting Relays

Configuration Parameters

Channel Parameters

Normal Mode

Head-To-Head Mode

Radial Cancel Mode

Alarm Parameters

Relay Parameters

4-20mA Output Parameters

Triggered Trend Parameters

I/O Data Parameters

Data Parameters

Channel Data

Alarm and Relay Status

Device Mode Parameters

Specifications

DeviceNet Information

Electronic Data Sheets

Changing Operation Modes

Transition to Program Mode

Transition to Run Mode

XM Services

Invalid Configuration Errors

XM-320 I/O Message Formats

Poll Message Format

COS Message Format

Bit-Strobe Message Format

ADR for XM Modules

DeviceNet Objects

Class Attributes

Instance Attributes

Status

Services

Class Attributes

Instance Attributes

Services

Class Attributes

Instances

Instance Attributes

Assembly Instance Attribute Data Format

Services

Class Attributes

Instances

Instance Attributes

Services