Bailey INFI 90 LAN-90 PCV User manual

Process Control and
Automation Solutions
from Elsag Bailey Group
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E97-811-21
LAN-90®Process Control View (PCV®)
Harmony/MICRO-DCI Protocol Specific Driver (PSD)
(Software Release 5.2)

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information contained in this instruction.
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I-E97-811-21B
Preface
This manual provides general information and guidance with
respect to:
• The Harmony MICRO-DCI Protocol Specific Driver (PSD).
• Hardware requirement and cable connections.
• PSD start-up requirements.
• Device and data addressing during configuration of the
interface.

I-E97-811-21B
®
List of Effective Pages
Total number of pages in this instruction is 20, consisting of the following:
Page No. Change Date
Preface Original
List of Effective Pages Original
iii through v Original
1-1 through 1-3 Original
2-1 through 2-2 Original
3-1 through 3-3 Original
4-1 through 4-3 Original
A-1 Original
B-1 through B-2 Original
C-1 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.

Table of Contents
Page
I-E97-811-21B iii
SECTION 1 - INTRODUCTION....................................................................................................1-1
OVERVIEW ..................................................................................................................1-1
REQUIREMENTS .........................................................................................................1-1
Hardware Requirements.........................................................................................1-1
Software Requirements ..........................................................................................1-2
GLOSSARY...................................................................................................................1-2
REFERENCES..............................................................................................................1-3
SECTION 2 - INSTALLATION.....................................................................................................2-1
SETUP DETAILS FOR RS-232-C/485 CONVERTERS ....................................................2-1
PSD ASSOCIATED FILES DIRECTORY ASSIGNMENTS.................................................2-2
SECTION 3 - CONFIGURATION.................................................................................................3-1
PSD START-UP FILE ....................................................................................................3-1
PSD DATA TYPE ASSOCIATION WITH HARMONY DATA TYPES ....................................3-2
Harmony Data Type 0, Unsigned Integer ................................................................3-3
Harmony Data Type 4, Float ..................................................................................3-3
Harmony Data Type 5, Double ...............................................................................3-3
Harmony Data Type 8, Byte Oriented Digital ..........................................................3-3
Harmony Data Type 12, ASCII Text ........................................................................3-3
SECTION 4 - OPERATION..........................................................................................................4-1
OVERVIEW ..................................................................................................................4-1
PSD AND EXECUTIVE INTERDEPENDENCE ................................................................4-1
THE PSD START-UP SEQUENCE .................................................................................4-1
PSD PRIMARY FUNCTIONS ..........................................................................................4-2
PROTOCOL/DEVICE SPECIFIC ADDRESSING VALIDATION ........................................4-2
APPENDIX A - MICRO-DCI CONTROLLER DATA ADDRESSING..........................................A-1
MICRO-DCI CONTROLLER DATA ADDRESSING ......................................................... A-1
APPENDIX B - ERROR MESSAGE TABLE...............................................................................B-1
ERROR MESSAGE TABLE........................................................................................... B-1
APPENDIX C - MODBUS CABLE CONNECTIONS...................................................................C-1
MICRO-DCI CABLE CONNECTIONS ............................................................................ C-1

iv I-E97-811-21B
No. Title Page
List of Figures
®
2-1. MICRO-DCI RS-485 Physical Interconnections ...................................................... 2-1
C-1. MICRO-DCI Interface Cable Layouts ......................................................................C-1
List of Tables
No. Title Page
2-1. Hardware Requirements ........................................................................................ 2-2
3-1. Harmony/MICRO-DCI Data Types ......................................................................... 3-2
4-1. Group Size, Generic versus MICRO-DCI Data Type ................................................ 4-3
A-1. Legal MICRO-DCI Controller Data Addressing........................................................ A-1
B-1. Error Message Table ..............................................................................................B-1

I-E97-811-21B v
Trademarks and Registrations
Registrations and trademarks in this document include:
® Elsag Bailey Registered trademark of Elsag Bailey Process Automation.
® INFI 90 Registered trademark of Elsag Bailey Process Automation.
® INFI-NET Registered trademark of Elsag Bailey Process Automation.
® Intel Registered trademark of Intel Corporation.
® LAN-90 Registered trademark of Elsag Bailey Process Automation.
® PCV Registered trademark of Elsag Bailey Process Automation.
® QNX Registered trademark of QNX Software Systems.

OVERVIEW
I-E97-811-21B 1 - 1
SECTION 1 - INTRODUCTION
OVERVIEW
This document describes the LAN-90 PCV Harmony Protocol
Specific Driver (PSD) for data communication with the
Bailey-Fischer & Porter MICRO-DCI controllers.
This PSD contains all device specific descriptives for address-
ing the various MICRO-DCI devices for data communication.
The PSD initiates all communication transactions for the inter-
face. It prompts the Harmony Executive for requests to per-
form any and all data transactions with the MICRO-DCI
devices.
Specifically, the MICRO-DCI driver supports the MICRO-DCI
host to instrument commands for reading and writing data.
The PSD processes Harmony Executive requests to:
•Parse and evaluate text strings entered via the Harmony
Editor for the device specific parameters: MICRO-DCI
device type and address, data point address, group data
point range.
•Construct protocol specific transaction command mes-
sages.
•Initiate communication with devices, monitor completion
of transactions, send responses back to the Harmony
Executive.
•Return status information regarding itself and device com-
munication to the Harmony Executive.
The PSD converts data between the MICRO-DCI controller for-
mat and the Harmony data type format associated with the
data group being processed. Tag parameters inherit the Har-
mony data type of the data group. The MICRO-DCI data type
associated with a data group is determined from the group
address.
REQUIREMENTS
Hardware Requirements
The communication port on the MICRO-DCI controllers is an
RS-485 four-wire port. Multiple MICRO-DCI controllers may be
networked as multidropped nodes. LAN-90 PCV connects to

INTRODUCTION
GLOSSARY
1 - 2 I-E97-811-21B
®
this network as the master node. Normal serial port limitations
apply as described in the PCV manual instructions to set up
the CIU.
The LAN-90 PCV computer requires the use of an external
RS-232-C to RS-485 adapter in order to communicate with the
MICRO-DCI controllers. The RS-232-C to RS-485 converter
which was used in testing the PSD, was supplied by Inmac Inc.
(part number 800052).
The Bailey-Fischer & Porter SCADA adapter was used in the
development of this PSD. If a SCADA adapter is in use, it need
not be replaced.
The provided setup information should be verified with the
documentation included with the adapter.
Software Requirements
The PSD needs the Harmony Executive and Editor to form a
Harmony interface for LAN-90 PCV. To make the Harmony
Executive available, the Harmony option must be enabled
under the LAN-90 PCV System Options menu.
GLOSSARY
B-Type An eight-bit unsigned integer data variable in a MICRO-DCI
controller. A B-Type variable can be read or written.
CIU
(Computer Interface Unit) A device used to connect a host computer system to the Elsag
Bailey INFI-NET®data highway.
C-Type A three-byte float data variable in a MICRO-DCI controller. A
C-Type variable can be read or written.
Harmony The LAN-90 PCV external device interface.
H-Type A five-byte float data variable in a MICRO-DCI controller. An
H-Type variable can be read or written.
LAN
(Local Area Network) A network whose nodes are connected in relatively close prox-
imity to each other.
LAN-90 PCV
(LAN-90 Process
Control View)
The software package comprising the operators’ console, data
acquisition and local area network software developed and
manufactured by Elsag Bailey Inc. running under the QNX®
operating system.
L-Type A digital or boolean data variable (bit) in a MICRO-DCI control-
ler. A L-Type variable can be read or written.
MICRO-DCI The Bailey-Fischer & Porter control station family. The com-
munication protocol over the multidrop RS-485 network is a

INTRODUCTION
REFERENCES
I-E97-811-21B 1 - 3
single master/multiple slave protocol for which the LAN-90
PCV is installed as the master drop.
PSD
(Protocol Specific Driver)
This acronym refers to device and protocol specific interfaces
developed for the LAN-90 PCV Harmony optional software.
RTDB
(Real-Time DataBase) The LAN-90 PCV database comprising a set of console tags
whose values, states and other information are maintained in
real-time.
REFERENCES
•LAN-90 PCV Software Release 5.2 Installation manual,
I-E97-811-1.
•LAN-90 PCV Software Release 5.2 Configuration and Oper-
ation manuals, I-E97-811-2.1 and I-E97-811-2.2.
•PCV Subsystem Interface Communications Driver API Ref-
erence manual, I-E97-807-16, Rev. 1.1.
•LAN-90 PCV Process Control View (PCV), Harmony - Exter-
nal Device Interface, I-E97-808-19.
•MICRO-DCI MODULAR CONTROLLER, Instruction Bulle-
tin Control Room Products, 53MC5000, Revision 1.