Bailey Infi 90 IMQRS02 User manual

®
®
Process Control and
Automation Solutions
from Elsag Bailey Group
E96-316
Quick Response Slave Module
(IMQRS02)

WARNING notices as used in this instruction apply to hazards or unsafe practices that could result in
personal injury or death.
CAUTION notices apply to hazards or unsafe practices that could result in property damage.
NOTES highlight procedures and contain information that assists the operator in understanding the
information contained in this instruction.
WARNING
INSTRUCTION MANUALS
DO NOT INSTALL, MAINTAIN, OR OPERATE THIS EQUIPMENT WITHOUT READING, UNDERSTANDING,
AND FOLLOWING THE PROPER Elsag Bailey INSTRUCTIONS AND MANUALS; OTHERWISE, INJURY OR
DAMAGE MAY RESULT.
RADIO FREQUENCY INTERFERENCE
MOST ELECTRONIC EQUIPMENT IS INFLUENCED BY RADIO FREQUENCY INTERFERENCE (RFI). CAU-
TION SHOULD BE EXERCISED WITH REGARD TO THE USE OF PORTABLE COMMUNICATIONS EQUIP-
MENT IN THE AREA AROUND SUCH EQUIPMENT. PRUDENT PRACTICE DICTATES THAT SIGNS
SHOULD BE POSTED IN THE VICINITY OF THE EQUIPMENT CAUTIONING AGAINST THE USE OF POR-
TABLE COMMUNICATIONS EQUIPMENT.
POSSIBLE PROCESS UPSETS
MAINTENANCE MUST BE PERFORMED ONLY BY QUALIFIED PERSONNEL AND ONLY AFTER SECURING
EQUIPMENT CONTROLLED BY THIS PRODUCT. ADJUSTING OR REMOVING THIS PRODUCT WHILE IT IS
IN THE SYSTEM MAY UPSET THE PROCESS BEING CONTROLLED. SOME PROCESS UPSETS MAY
CAUSE INJURY OR DAMAGE.
AVERTISSEMENT
MANUELS D’OPÉRATION
NE PAS METTRE EN PLACE, RÉPARER OU FAIRE FONCTIONNER L’ÉQUIPEMENT SANS AVOIR LU,
COMPRIS ET SUIVI LES INSTRUCTIONS RÉGLEMENTAIRES DE Elsag Bailey. TOUTE NÉGLIGENCE À
CET ÉGARD POURRAIT ÊTRE UNE CAUSE D’ACCIDENT OU DE DÉFAILLANCE DU MATÉRIEL.
PERTURBATIONS PAR FRÉQUENCE RADIO
LA PLUPART DES ÉQUIPEMENTS ÉLECTRONIQUES SONT SENSIBLES AUX PERTURBATIONS PAR
FRÉQUENCE RADIO. DES PRÉCAUTIONS DEVRONT ÊTRE PRISES LORS DE L’UTILISATION DU MATÉ-
RIEL DE COMMUNICATION PORTATIF. LA PRUDENCE EXIGE QUE LES PRÉCAUTIONS À PRENDRE
DANS CE CAS SOIENT SIGNALÉES AUX ENDROITS VOULUS DANS VOTRE USINE.
PERTURBATIONS DU PROCÉDÉ
L’ENTRETIEN DOIT ÊTRE ASSURÉ PAR UNE PERSONNE QUALIFIÉE EN CONSIDÉRANT L’ASPECT
SÉCURITAIRE DES ÉQUIPEMENTS CONTRÔLÉS PAR CE PRODUIT. L’AJUSTEMENT ET/OU L’EXTRAC-
TION DE CE PRODUIT PEUT OCCASIONNER DES À-COUPS AU PROCÉDÉ CONTRÔLE LORSQU’IL EST
INSÉRÉ DANS UNE SYSTÈME ACTIF. CES À-COUPS PEUVENT ÉGALEMENT OCCASIONNER DES
BLESSURES OU DES DOMMAGES MATÉREILS.
NOTICE
The information contained in this document is subject to change without notice.
Elsag Bailey, its affiliates, employees, and agents, and the authors and contributors to this publication specif-
ically disclaim all liabilities and warranties, express and implied (including warranties of merchantability and
fitness for a particular purpose), for the accuracy, currency, completeness, and/or reliability of the information
contained herein and/or for the fitness for any particular use and/or for the performance of any material and/
or equipment selected in whole or part with the user of/or in reliance upon information contained herein.
Selection of materials and/or equipment is at the sole risk of the user of this publication.
This document contains proprietary information of Elsag Bailey, Elsag Bailey Process Automation, and
is issued in strict confidence. Its use, or reproduction for use, for the reverse engineering, development
or manufacture of hardware or software described herein is prohibited. No part of this document may be
photocopied or reproduced without the prior written consent of Elsag Bailey.

I-E96-316A
Preface
The Quick Response Slave module (IMQRS02) brings process
field signals into the INFI 90 Process Management System, and
outputs INFI 90 signals to the process. Master modules use
this I/O to monitor and control a process.
This instruction explains the slave module features, specifica-
tions and operation. It details the procedures to follow to set up
and install a Quick Response Slave (QRS) module. It explains
troubleshooting, maintenance and module replacement proce-
dures.
The system engineer or technician using the QRS should read
and understand this instruction before installing and operat-
ing the slave module. In addition, a complete understanding of
the INFI 90 system is beneficial to the user.

I-E96-316A
®
List of Effective Pages
Total number of pages in this instruction is 45, consisting of the following:
Page No. Change Date
Preface Original
List of Effective Pages Original
iii through vii Original
1-1 through 1-7 Original
2-1 through 2-7 Original
3-1 through 3-8 Original
4-1 through 4-2 Original
5-1 through 5-4 Original
6-1 Original
7-1 Original
8-1 Original
A-1 through A-5 Original
B-1 through B-2 Original
When an update is received, insert the latest changed pages and dispose of the super-
seded pages.
NOTE: On an update page, the changed text or table is indicated by a vertical bar in the outer mar-
gin of the page adjacent to the changed area. A changed figure is indicated by a vertical bar in the
outer margin next to the figure caption. The date the update was prepared will appear beside the
page number.

vI-E96-316A
Safety Summary
®
GENERAL
WARNINGS Equipment Environment
All components, whether in transportation, operation or storage
must be in a noncorrosive environment.
Electrical Shock Hazard During Maintenance
Disconnect power or take precautions to ensure that contact with
energized parts is avoided when servicing.
Special Handling
This module uses Electrostatic Sensitive Devices (ESD).
SPECIFIC
WARNINGS Disconnect power before installing dipshunts for slave modules on
the MMU backplane (slave expander bus). Failure to do so could
result in severe or fatal shock. (p. 3-6, 5-3)

I-E96-316A vi
Sommaire de Sécurité
AVERTISSEMENT
D'ORDRE
GENERAL
Environment de l'equipement
Nes pas soumettre les composantes a une atmosphere corrosive
lors du transport, de l'entreposage ou de l'utilisation.
Risques de chocs electriques lor de l'entretien
S'assurer de debrancher l'alimentation ou de prende les precau-
tions necessaires a eviter tout contact avec des composants sours
tension lors de l'entretien.
Precautions de Manutention
Ce module contient des composantes sensibles aux decharges
electro-statiques.
AVERTISSEMENT
D'ORDRE
SPECIFIQUE
Couper l'alimentation avant d'installer les dipshunts sur la plaque
arriere du chassis de montage de modules (MMU). Toute negli-
gence a cet egard constitue un risque de choc pouvant entrainer
des blessures graves, voire moretiles. (p. 3-6, 5-3 )

Table of Contents
Page
I-E96-316A iii
SECTION 1 - INTRODUCTION....................................................................................................1-1
OVERVIEW ..................................................................................................................1-1
INTENDED USER.........................................................................................................1-1
MODULE DESCRIPTION ..............................................................................................1-1
FEATURES...................................................................................................................1-2
INSTRUCTION CONTENT .............................................................................................1-3
HOW TO USE THIS MANUAL .......................................................................................1-3
GLOSSARY OF TERMS AND ABBREVIATIONS .............................................................1-4
SPECIFICATIONS.........................................................................................................1-5
REFERENCE DOCUMENTS..........................................................................................1-7
NOMENCLATURE ........................................................................................................1-7
SECTION 2 - DESCRIPTION AND OPERATION........................................................................2-1
INTRODUCTION...........................................................................................................2-1
ANALOG I/O ................................................................................................................2-2
Analog Inputs ........................................................................................................2-2
Analog Input Circuit Calibration ............................................................................2-3
Analog Outputs......................................................................................................2-3
DIGITAL I/O ................................................................................................................2-3
Digital Inputs.........................................................................................................2-4
Digital Outputs ......................................................................................................2-4
Digital I/O Buffer...................................................................................................2-5
I/O CIRCUIT CONNECTIONS .......................................................................................2-5
SLAVE EXPANDER BUS...............................................................................................2-5
UNIVERSAL SLAVE EXPANDER BUS INTERFACE........................................................2-5
MODULE DATA............................................................................................................2-6
I/O Data................................................................................................................2-6
Status Data ...........................................................................................................2-6
LOGIC POWER.............................................................................................................2-7
BUS FAULT TIMER ......................................................................................................2-7
STATUS LED INDICATOR.............................................................................................2-7
SECTION 3 - INSTALLATION.....................................................................................................3-1
INTRODUCTION...........................................................................................................3-1
SPECIAL HANDLING ....................................................................................................3-1
UNPACKING AND INSPECTION ....................................................................................3-1
SETUP/PHYSICAL INSTALLATION ...............................................................................3-2
Slave Address Selection Switch (S1) .......................................................................3-2
Analog Output Default Switch (S2) .........................................................................3-3
Analog Output Mode Switch (S3) ............................................................................3-4
Digital Input Jumper Settings ................................................................................3-5
Termination Unit/Module Configuration ................................................................3-6
Physical Installation...............................................................................................3-6
WIRING CONNECTIONS AND CABLING .......................................................................3-7
Wiring....................................................................................................................3-7
Cable Connections .................................................................................................3-7
FUSING........................................................................................................................3-8
PRE-OPERATING ADJUSTMENTS ................................................................................3-8

iv I-E96-316A
Table of Contents (continued)
Page
®
SECTION 4 - OPERATING PROCEDURES................................................................................4-1
INTRODUCTION .......................................................................................................... 4-1
MODULE STATUS INDICATOR .................................................................................... 4-1
START-UP PROCEDURES............................................................................................ 4-2
SECTION 5 - TROUBLESHOOTING...........................................................................................5-1
INTRODUCTION .......................................................................................................... 5-1
ERROR INDICATIONS AND CORRECTIVE ACTION ...................................................... 5-1
Status LED............................................................................................................ 5-1
Master Module Errors............................................................................................ 5-1
Analog Input Reference Error .......................................................................... 5-2
Missing Slave Module Error ............................................................................. 5-2
MODULE PIN CONNECTIONS ...................................................................................... 5-3
SECTION 6 - MAINTENANCE.....................................................................................................6-1
INTRODUCTION .......................................................................................................... 6-1
MAINTENANCE SCHEDULE ........................................................................................ 6-1
SECTION 7 - REPAIR/REPLACEMENT PROCEDURES...........................................................7-1
INTRODUCTION .......................................................................................................... 7-1
MODULE REPAIR/REPLACEMENT PROCEDURES ...................................................... 7-1
SECTION 8 - SUPPORT SERVICES...........................................................................................8-1
INTRODUCTION .......................................................................................................... 8-1
REPLACEMENT PARTS AND ORDERING INFORMATION ............................................. 8-1
TRAINING.................................................................................................................... 8-1
TECHNICAL DOCUMENTATION................................................................................... 8-1
APPENDIX A - TERMINATION UNIT (NTCS02)CONFIGURATION .........................................A-1
INTRODUCTION ..........................................................................................................A-1
APPENDIX B - TERMINATION MODULE (NICS01) CONFIGURATION ..................................B-1
INTRODUCTION ..........................................................................................................B-1

List of Figures
No. Title Page
I-E96-316A v
1-1. INFI 90 Communication Levels...............................................................................1-2
2-1. Quick Response Slave Module Block Diagram ........................................................2-1
2-2. IMQRS02 Analog Input and Output Circuit ............................................................2-2
2-3. IMQRS02 Digital Input and Output Circuits...........................................................2-4
3-1. Quick Response Slave Module................................................................................3-2
3-2. Address Select Switch (S1) .....................................................................................3-2
3-3. Analog Output Default Switch (S2) ........................................................................3-4
3-4. Analog Output Mode Switch (S3) ...........................................................................3-5
3-5. IMQRS02 Cable Connections and Termination .......................................................3-7
4-1. IMQRS02 Front Panel ............................................................................................4-1
A-1. NTCS02 Dipshunt for Analog Inputs ..................................................................... A-1
A-2. NTCS02 Dipshunt for Analog Outputs................................................................... A-2
A-3. NTCS02 Dipshunt for Digital Inputs...................................................................... A-3
A-4. NTCS02 Terminal Assignments ............................................................................. A-3
B-1. NICS01 Terminal Assignments .............................................................................. B-2
List of Tables
No. Title Page
3-1. Address Switch Settings (S1)..................................................................................3-3
3-2. Analog Output Default Switch (S2) Settings ...........................................................3-4
3-3. Analog Output Mode Switch (S3) Settings .............................................................3-5
3-4. Digital Input Jumper Settings ................................................................................3-5
4-1. IMQRS02 Status LED Indicator..............................................................................4-1
5-1. Status LED Indications and Corrective Actions ......................................................5-1
5-2. P1 Power Pin Connections......................................................................................5-3
5-3. P2 Slave Expander Bus Connections .....................................................................5-4
5-4. P3 I/O Pin Connections .........................................................................................5-4
6-1. Maintenance Schedule ...........................................................................................6-1
A-1. NTCS02 Dipshunt Configuration........................................................................... A-4
B-1. NICS01 Dipswitch Configuration........................................................................... B-1

OVERVIEW
I-E96-316A 1 - 1
SECTION 1 - INTRODUCTION
OVERVIEW
The Quick Response Slave module (IMQRS02) brings four ana-
log and three digital process field signals into the INFI 90 sys-
tem for processing and monitoring. It outputs four digital and
two analog signals for process control. The Quick Response
Slave (QRS) module is an interface between the process and
the INFI 90 Process Management System. Master modules per-
form the control functions; slave modules provide the I/O.
This manual explains the purpose, operation and maintenance
of the slave module. It addresses handling precautions and
installation procedures. Figure 1-1 illustrates the INFI 90 com-
munication levels and the position of the QRS module within
these levels.
INTENDED USER
System engineers and technicians should read this manual
before installing and operating the QRS module. A module
SHOULD NOT be put into operation until this instruction is
read and understood. You can refer to the Table of Contents to
find specific information after the module is operating.
MODULE DESCRIPTION
The QRS consists of a single printed circuit board (PCB) that
occupies one slot in a Module Mounting Unit (MMU). A
dipswitch on the PCB configures each of the analog outputs;
jumpers configure each of the digital inputs. Each analog input
is configured on its respective Termination Unit (TU) or Termi-
nation Module (TM).
Two captive screws on the faceplate secure the module to the
MMU. A front panel LED indicates the module status.
The slave module has three connection points for external sig-
nals and power (P1, P2 and P3). P1 connects to logic power that
drives the module circuits (refer to Table 5-2). P2 connects it to
the slave expander bus to communicate with a Multi-Function
Processor (MFP) module (refer to Table 5-3). The digital and
analog signals are input and output through connector P3
using a cable connected to a TU/TM (refer to Table 5-4). The
terminal blocks (physical connection points) for field wiring are
on the TU/TM.

INTRODUCTION
FEATURES
1 - 2 I-E96-316A
®
FEATURES
The modular design of the QRS, as with all INFI 90 modules,
allows for flexibility when you are creating a process manage-
ment strategy. It brings analog and digital signals into the sys-
tem and outputs analog and digital signals to the process.
The QRS accepts digital signals of 24 VDC, 125 VDC and
120 VAC. Individual voltage and response time jumpers on the
module configure each input. Selectable response times (fast or
slow) for DC inputs allow the INFI 90 system to compensate for
process field device debounce time. It outputs 24 VDC digital
signals that can sink 250 mA.
Figure 1-1. INFI 90 Communication Levels
COMMUNICATION HIGHWAY (INFI-NET OR PLANT LOOP)
CONTROLWAY
MFP
QRS
TU/TM
OTHER MODULES
OTHER SLAVES
SLAVE EXPANDER BUS
COMMUNICATION
MODULES
TP27145A

INTRODUCTION
INSTRUCTION CONTENT
I-E96-316A 1 - 3
It accepts analog signals of 1 to 5 VDC (single ended or differ-
ential); its respective TU/TM converts a 4 to 20 mA current to a
voltage that is sent to the QRS. The analog output mode is
selectable; a dipswitch selects current or voltage mode for each
analog output depending on the process requirements.
The front panel LED provides a visual indication of the module
status to aid in system test and diagnosis. You can remove or
install a QRS without powering the system down.
The IMQRS02 and IMCIS02 are functionally the same, how-
ever, the QRS provides faster (ten times) response for the ana-
log inputs. By doing this, the input signal noise rejection is
lower for the QRS than the CIS. The process requirements
determine the module to use for your application.
INSTRUCTION CONTENT
This manual consists of eight sections. Introduction is an
overview of the QRS module: Features, description and specifi-
cations. Description and Operation explains the module
operation, and input and output circuitry. Installation
describes precautions to observe when handling QRS modules,
and setup procedures required before module operation. This
section discusses switch and jumper settings, and installation
procedures. Operating Procedures explains the front panel
indicator and start-up of the slave module. Troubleshooting
describes the error indications and corrective actions to take.
Maintenance has a maintenance schedule for the slave mod-
ule. Repair/Replacement Procedures details the procedures
to replace a slave module. Support Services provides replace-
ment part ordering information. It explains other areas of sup-
port that Bailey Controls provides.
HOW TO USE THIS MANUAL
Read this manual through in sequence. It is important to
become familiar with the entire contents of this manual before
using the QRS. The manual is organized in sections to enable
you to find specific information quickly.
1. Read and do the steps in Section 3.
2. Read Section 4 before powering up the module.
3. Refer to Section 5 if a problem occurs.
4. Refer to Section 6 for scheduled maintenance require-
ments.
5. Use Section 8 when ordering replacement parts.

INTRODUCTION
GLOSSARY OF TERMS AND ABBREVIATIONS
1 - 4 I-E96-316A
®
GLOSSARY OF TERMS AND ABBREVIATIONS
Term Definition
Analog A continuous time signal with an infinite number of values.
CTT Configuration and Tuning Terminal; hand held module that provides a local means
for system configuration, tuning and diagnostics.
Configuration A control strategy with function blocks.
Controlway A redundant peer-to-peer communication path for point data transfer between
intelligent modules within a process control unit.
Digital A discrete signal having only two states: on or off.
Dipshunt Dual in-line package with shorting bars.
Dipswitch A dual in-line package that contains single pole switches.
EWS Engineering Work Station; an integrated hardware and software personal com-
puter system for configuring and monitoring INFI 90 modules.
Function Code An algorithm which defines specific functions. These functions are linked together
to form the control strategy.
LED Light Emitting Diode; the module front panel indicator that shows status and error
messages.
LSB Least Significant Bit; the bit of a binary number that carries the least numerical
weight.
Master Module One of a series of controller modules designed to direct field processes through a
slave module. The multi-function processor is an example.
MFP Multi-Function Processor Module; a multiple- loop controller with data acquisition
and information processing capabilities.
MMU Module Mounting Unit; a card cage that provides electrical and communication
support for INFI 90 modules.
MSB Most Significant Bit; the bit of a binary number that carries the most numerical
weight.
OIS Operator Interface Station; integrated operator console with data acquisition and
reporting capabilities. It provides a window into the process for flexible control and
monitoring.
PCU Process Control Unit; rack type industrial cabinet that contains master, slave and
communication modules, and their communication paths.
Slave Expander Bus Parallel address/data bus between the master module and the slave.
TM Termination Module; provides input/output connection between plant equipment
and the INFI 90 process modules. The termination module slides into a slot in the
termination mounting unit.
TU Termination Unit; provides input/output connection between plant equipment and
the INFI 90 process modules. The termination unit is a flat circuit board for panel
mounting.

INTRODUCTION
SPECIFICATIONS
I-E96-316A 1 - 5
SPECIFICATIONS
Power Requirements
Voltage +5 VDC (±5%)
+15 VDC (-2.5%, +5%)
-15 VDC (-5%, +2.5%)
+24 VDC (±10%)(from termination unit/termination module)
Current (maximum) 332 mA (+5 VDC)
35 mA (+15 VDC)
30 mA (-15 VDC)
50 mA (+24 VDC)
Dissipation 1.65 W @ +5 VDC
525 mW @ +15 VDC
450 mW @ -15 VDC
1.20 W @ +24 VDC
Digital I/O
Digital Inputs (3) Optically isolated
Current (typical) 4.5 mA @ 24 VDC
5.0 mA @ 125 VDC
7.0 mA @ 120 VAC rms @ 60 Hz
Voltage 24 VDC (±10%)
125 VDC (±10%)
120 VAC (±10%)
Turn-On Voltage (minimum) 24 VDC 21.4 VDC
125 VDC 95.0 VDC
120 VAC 85.0 VAC
Turn-Off Voltage (maximum) 24 VDC 12 VDC
125 VDC 60 VDC
120 VAC 42 VAC
Maximum Input Current at Minimum Turn-On
24 VDC 3 mA @ 21.4 VDC
125 VDC 3 mA @ 95.0 VDC
120 VAC 5 mA @ 85.0 VAC 60 Hz
Off Leakage Current (maximum)
24 VDC 10 µA (@ Vin ≤12 VDC)
125 VDC 10 µA (@ Vin ≤60 VDC)
120 VAC 1.6 mA (@ Vin ≤42 VAC 60 Hz)
Response Time DC "Fast" - 1.5 ms
DC "Slow" - 17 ms

INTRODUCTION
SPECIFICATIONS (continued)
1 - 6 I-E96-316A
®
SPECIFICATIONS
(continued)
Digital I/O (continued)
Digital Outputs (4) Open collector, optically isolated
Off Output Voltage (nominal)
On Output Voltage (maximum)
Off Output Current (maximum)
On Output Current (maximum)
VI/O 24 VDC
2.4 VDC
10 µA
250 mA
Analog I/O
Analog Inputs (4) 1 - 5 VDC (differential)
TU/TM configured to accept: Powered or unpowered current (4 - 20 mA)
Single-ended or differential voltage (1 - 5 VDC)
Input Impedance
Common Mode Voltage
Normal Mode Rejection (minimum)
Common Mode Rejection (minimum)
Input Filter 3 db Point (typical)
>1 Mohm
±10 VDC
37 db @ 60 Hz
53 db @ 60 Hz
2 Hz
Analog Outputs (2) 4 - 20 mA or 1 - 5 VDC
Output Load
Current Mode (maximum)
Voltage Mode (minimum) 600 ohm, 600 millihenries >1 Kohm
A/D Resolution 12 bits for analog inputs
D/A Resolution 10 bits for analog outputs
Analog Accuracy
Input @ 25oC (77oF), Standard Conditions
Terminal Based Linearity
Repeatability
Deadband
Accuracy
±0.03% of Full Scale Range (FSR)
±0.03% of FSR
±0.03% of FSR
±0.10% of FSR
Output @ 25oC (77o F), Standard Conditions
Terminal Based Linearity
Repeatability
Accuracy
±0.10% of FSR
±0.05% of FSR
±0.15% of FSR (voltage mode)
±0.25% of FSR (current mode)
Temperature Effect (0-70oC) ±0.002% of FSR/degrees C
Input Cross Talk (channel to channel) 50 db (minimum) @ 25oC (77oF)
68 db (typical) @ 25oC (77o F)
Mounting
Occupies one slot in standard INFI 90 Module Mounting Unit.

INTRODUCTION
SPECIFICATIONS (continued)
I-E96-316A 1 - 7
SPECIFICATIONS
(continued)
REFERENCE DOCUMENTS
NOMENCLATURE
The following modules and equipment can be used with a QRS:
Environmental
Ambient Temperature 0oto 70oC (32oto 158oF)
Relative Humidity 0 to 95% up to 55oC (131oF) (non-condensing)
0 to 45% at 70oC (158oF) (non-condensing)
Atmospheric Pressure Sea level to 3 km (1.86 miles)
Air Quality Non-corrosive
Certification
CSA certified for use as process control equipment in an ordinary (non-hazardous) location.
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Document
Number Document
I-E96-201 Multi-Function Processor (IMMFP01)
I-E96-202 Multi-Function Processor (IMMFP02)
I-E93-911 Termination Unit Manual
I-E96-100 Operator Interface Station
I-E93-916 Engineering Work Station
I-E92-501-2 Configuration and Tuning Terminal
I-E93-900-20 Function Code Application Manual
Nomenclature Hardware
IMMFP01/02 Multi-Function Processor Module
NTCS02 Termination Unit, Control I/O
NICS01 Termination Module, Control I/O
NKTU01 Cable, Termination Unit
NKTU02 Cable, Termination Module
NKTM01 Cable, Termination Module

INTRODUCTION
I-E96-316A 2 - 1
SECTION 2 - DESCRIPTION AND OPERATION
INTRODUCTION
This section explains the inputs, outputs, logic power and con-
nections for the Quick Response Slave (QRS) module. The QRS
is a process field I/O interface for a Multi-Function Processor
(MFP) or Multi-Function Controller (MFC) module. The slave
module circuitry:
1. Performs analog to digital (A/D) conversion. It changes
analog inputs to digital values the MFP can process.
2. Performs digital to analog (D/A) conversion. It changes the
MFP digital values to analog voltage or current signals to con-
trol process field devices.
3. Accepts digital field inputs, and isolates the module cir-
cuitry from the process.
4. Outputs digital signals to process field devices, and isolates
the module circuitry from the process.
The MFP communicates with its slave modules on a 12-line
slave expander bus as shown in Figure 1-1. Each slave on the
bus has a unique address set by its slave address dipswitch
(S1). Figure 2-1 is a block diagram of the QRS.
Figure 2-1. Quick Response Slave Module Block Diagram
18
OPEN 16
OPEN
LOGIC POWER
ANALOG OUTPUT
MODE SWITCH
DIGITAL INPUTS (3)
ANALOG INPUTS (4)
DIGITAL OUTPUTS (4)
ANALOG OUTPUTS (2)
SLAVE EXPANDER
BUS
TP27111A
DIGITAL I/O
BUFFER
A/D
CONVERTER INPUT SELECT INPUT CONDITIONING
SLAVE
EXPANDER BUS
INTERFACE
BUS FAULT
DETECTOR
MODULE
STATUS
THRESHOLD
DETECTION
D/A
CONVERTER E/I SWITCH
REFERENCE
OUTPUT
ISOLATION
INPUT
ISOLATION
DRIVER
P2
P3
P1
S1
ADDRESS
SWITCH ANALOG OUTPUT DEFAULT SWITCH
S2 S3
MODULE
STATUS LED
C1
C2
C3
C4

DESCRIPTION AND OPERATION
ANALOG I/O
2 - 2 I-E96-316A
®
ANALOG I/O
The QRS can input four separate analog signals (1 to 5 VDC),
and output two separate analog signals (1 to 5 VDC, 4 to 20
mA). The module accepts analog inputs that are either single
ended or differential voltages. It allows for a common mode
(inputs change together proportionally) differential voltage of
±10 VDC. The QRS output mode is selectable: current or volt-
age. Figure 2-2 shows the analog input and output circuits.
Analog Inputs
The input conditioning block consists of two pole input filters
that reduce input signal noise. They provide 37 db of normal
mode rejection (differential change) and 53 db of common
mode rejection for the differential inputs.
The QRS uses analog voltage inputs only. Its respective Termi-
nation Unit (TU) or Termination Module (TM) is configurable for
current or voltage inputs; resistors on the TU/TM convert ana-
log current inputs to voltages that are sent to the QRS.
The input select block consists of an analog multiplexer and an
inverting difference amplifier. The multiplexer selects one of
the four inputs or the reference block inputs (calibration volt-
ages). The difference amplifier converts the selected input to a
single ended signal.
Figure 2-2. IMQRS02 Analog Input and Output Circuit
TP27117A
ANALOG OUTPUT
BIAS
VOLTAGE
FROM D/A
CONVERTER
FIELD
OUTPUT
S3
FEEDBACK
+
–+
––
+
–15 V
+24 V
–
+
ANALOG INPUT
TO A/D
CONVERTER
FIELD
INPUT
+
–
–
+

DESCRIPTION AND OPERATION
DIGITAL I/O
I-E96-316A 2 - 3
The A/D converter block circuits change the input signal to a
12-bit value that is sent to the slave expander bus interface.
This value is an analog count that corresponds to the input
voltage. Nominal input range is 1 to 5 VDC, however, it allows
for a 0.75 to 5.25 VDC input range which is ±6.25 percent of
the nominal input range span (4 VDC).
Analog Input Circuit Calibration
The reference block generates accurate 1 VDC and 5 VDC sig-
nals. The QRS does not have potentiometers to adjust zero off-
set and gain for the A/D converter circuits. Instead, the MFP
reads the reference voltages once per minute to calibrate the 0
percent (1 VDC) and 100 percent (5 VDC) points; this calibra-
tion automatically corrects the measured values. It is per-
formed continuously to correct for drift and temperature
variations.
Analog Outputs
The D/A converter block is two separate D/A converters. Each
D/A converts a 10-bit digital value (analog count) from the
MFP to an analog output (1 to 5 VDC). To check module circuit
integrity, the outputs are fed back to the analog input section.
The feedback values (analog output digital values) are com-
pared to the values that were sent to the analog output section
to test the output quality. This tests for an output circuit fail-
ure or an open loop between the master module and slave
module.
The analog output default switch (S2) sets the output values
during system start-up or time-out (refer to BUS FAULT TIMER
in this section). The analog outputs will go to 0 percent or 100
percent output, or they will hold their current values depend-
ing on the setting of S2. Section 3 explains how to set S2.
The analog output mode switch (S3) sets the type of output,
either current or voltage. If current mode is selected, the E/I
circuits on the QRS convert the voltage from the D/A converter
to a current output. Section 3 explains how to set S3.
DIGITAL I/O
The QRS can input three separate digital signals and output
four separate digital signals. Digital inputs are voltages of 24
VDC, 125 VDC or 120 VAC. These voltages indicate an ener-
gized (ON) field device; a 0 volt input indicates a de-energized
(OFF) field device. The QRS digital outputs can switch 24 VDC
at 250mA. Figure 2-3 shows the digital input and output cir-
cuits.

DESCRIPTION AND OPERATION
DIGITAL I/O
2 - 4 I-E96-316A
®
The QRS has two possible propagation (speed) choices for DC
inputs to allow for contact debounce time: a slow setting (17
millisecond response time) and a fast setting (1.5 millisecond
response time). Jumpers on the QRS select the voltage level
and response time for each input. Section 3 explains the
jumper connections.
Digital Inputs
Current limiters and optocouplers in the isolation block isolate
the three field inputs from the module circuitry. The threshold
detection block circuits test the input voltage to determine if it
is at the proper voltage level to indicate an energized (closed) or
de-energized (open) state for the field device. These values are
sent to the digital I/O buffer block. Jumpers on the QRS select
the threshold detection voltage level.
Digital Outputs
The output isolation block consists of optocouplers to isolate
the control logic circuits from the process. Four open collector
transistors that can sink a 250 mA load make up the driver
block.
Figure 2-3. IMQRS02 Digital Input and Output Circuits
TP27116A
DIGITAL OUTPUT
DIGITAL INPUT
FROM OUTPUT
CIRCUITRY
FIELD
OUTPUT
+5 V
–
+
+5 V +5 V +5 V
+5 V
FIELD
INPUT
–
+
4
2
3
1
–
+
TO INPUT
CIRCUITRY
1
3
2
4