GE Marine GPS System A166 0CG User Manual

g
GE Energy Services  
Serial Status DCA  
Configuration Guide  
Document Number : A166-0CG  
Version : 1.00  
Revision : 2  
Date : 02.08.23  
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Serial Status DCA  
Configuration Guide  
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Table of Contents  
About this Guide  
Purpose of this Guide.................................................................................................................ix  
Who Should Use this Guide.......................................................................................................ix  
Additional Documentation.........................................................................................................ix  
Overview  
Product Perspective....................................................................................................................xi  
Chapter 1: Configuring Tables  
1.1  
1.2  
Serial Status DCA Configuration Tables ........................................................................1  
Configuration Sequence..................................................................................................1  
Chapter 2: Configuring the Main Application Table (A166APPL)  
Chapter 3: Configuring the Port Table (A166PORT):  
Chapter 4: Configuring Win for the Serial Status DCA  
4.1  
WESDAC Point Allocation.............................................................................................7  
Appendix A: Messages Logged by the Serial Status DCA  
A.1  
A.2  
A.3  
A.4  
Fatal Error Messages.......................................................................................................9  
Non-Fatal Error Messages.............................................................................................12  
Warning Messages ........................................................................................................15  
Information Messages ...................................................................................................15  
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List of Figures  
Figure 1 System Overview...........................................................................................................xii  
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List of Tables  
Table 1 Serial Status DCA Configuration Tables ..........................................................................1  
Table 2 Main Application Configuration Table Parameters..........................................................3  
Table 3 Port Configuration Table Parameters................................................................................5  
Table 4 WESDAC Point Types.....................................................................................................10  
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About this Guide  
This guide describes how to configure the Serial Status (Serial Status Protocol) Data Collection  
Application (DCA).  
Purpose of this Guide  
This document describes the purpose and use of each of the configuration parameters of the  
Serial Status DCA. This document makes no attempt to explain how the configuration process  
operates, it is limited to describing the format and content of the DCA configuration only.  
Who Should Use this Guide  
This document is intended for use by individuals responsible for the configuration of the Serial  
Status DCA in GE Energy Services RTUs. These people should be familiar with the operation  
and maintenance of RTUs in general, but may not be familiar with the GE Energy Services  
family of products.  
Before reading this document, you should have a basic understanding of the GE Energy Services  
hardware environment, the configuration system, and the Serial Status DCA.  
Additional Documentation  
The following supporting texts are available:  
Serial Status DCA Functional Specification (A166-0FS.WES)  
WESMAINT II Maintenance Facility Configuration Guide (B014-0CG.700)  
WESMAINT II+ Configuration Guide (B014-1CG.CCU)  
WIN User's Configuration Guide for the WESDAC D20 (B008-0CG.D20)  
WIN User's Configuration Guide for the CCU (B008-1CG.CCU)  
Config Pro Configuration System User’s Guide (P012-0UG  
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Overview  
The Serial Status DCA software is installed in GE Energy Services WESDAC equipment to  
provide an interface to Sub-Remote Units (SRUs) using the Serial Status communication  
protocol.  
Product Perspective  
The Serial Status DCA software is custom software installed in the GE Energy Services Remote  
Terminal Unit (RTU) to act as a data concentrator for one or more SRUs using the Serial Status  
communication protocol. After the system is installed, the RTU has the ability to function as a  
sub-master within a Supervisory Control and Data Acquisition (SCADA) system, which controls  
multiple SRUs. Figure 1 represents a complete system overview of how the Serial Status DCA  
interfaces with the WESDAC Interface Node (WIN) in a typical GE Energy Services RTU.  
The application is designed to communicate with SRUs via the Serial Status protocol. The Serial  
Status DCA receives data from the SRUs by polling for data in a master-slave relationship.  
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HOST  
Command  
WIN Response  
WIN Event  
WINResponse  
WIN Event  
Operator  
Request  
Display  
Data  
Protocol  
X
Host  
Wesmaint  
Display  
(VT100)  
Pr otocol X  
DPA  
DPA  
Wesmaint  
Response  
WI N  
WESDAC  
Interface  
Node  
WIN  
Command  
DCA  
Command  
Pr otocol X  
DPA Data  
WESDAC  
Tables  
Data Update  
DCA  
Command  
WESDAC  
Tables  
Command  
(WIN)  
Local I/O  
DCA Data  
Serial Status DCA  
Data  
DCA Event  
DCA Event  
DCA  
Data  
Serial Status Request  
Data  
Sub-Remote  
Unit  
Local  
Hardware  
Request  
Requested  
Local I/O  
DCA  
DCA  
DCA  
Requested  
Data  
(SRU)  
Data  
Response  
Response  
Figure 1 System Overview  
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Chapter 1: Configuring Tables  
The Serial Status DCA configuration contains all of the data structures necessary to configure a  
RTU to poll devices using the Serial Status protocol.  
1.1 Serial Status DCA Configuration Tables  
The purpose of each configuration table is described below.  
TABLE NAME  
A166APPL  
DESCRIPTION  
The Main Application configuration table is used to define global settings for the entire  
Serial Status application. These parameters pertain to all channels and SRUs connected  
within the system.  
The Port Configuration table contains data related to the communication port set-up for  
A166PORT  
each communication port used by the Serial Status DCA.  
Table 1 Serial Status DCA Configuration Tables  
1.2 Configuration Sequence  
The following is a list of the steps required to configure the Serial Status DCA:  
1. Edit the Serial Status DCA configuration. Prepare it according to the guidelines in this  
document and the specific use for which the Serial Status DCA is required.  
2. Edit the configuration for the other applications that will run on the product. Prepare them  
according to their own configuration guides.  
3. Generate the configuration and download it to the product using a GE Energy Services  
Configuration System. The list of applications to be compiled must include the Serial Status  
DCA, application A166.  
4. Restart the product. If the Serial Status DCA encounters an error during its initialization, it  
will log a message to the WESMAINT Error Log and then, depending on the severity of the  
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error, terminate or continue with its run-time function.  
5. Check for error messages. Log into the WESMAINT maintenance interface, select the  
System Functions item from the Main Menu, and then select the Error Log item from the  
System Functions Menu. If any error messages are displayed, correct the problem as  
described in Appendix A:, and repeat steps 3 through 5.  
When the Serial Status DCA has successfully validated all the configuration parameters,  
configuration is complete.  
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Chapter 2: Configuring the Main  
Application Table (A166APPL)  
The Main Application configuration table is used to define global settings for the entire Serial  
Status DCA. These parameters pertain to all channels and SRUs connected within the system.  
The Main Application configuration must contain a single record.  
Name  
Range  
Description  
DCA Index  
Index into the System The indexed System Point Database table record must contain the  
Point Database  
WESDAC database point counts for this application.  
The DCA Index is automatically configured and so may not be visible.  
Table 2 Main Application Configuration Table Parameters  
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Chapter 3: Configuring the Port Table  
(A166PORT):  
The Port table contains the relevant configuration information for communication port setup.  
Each record in the Port table defines the communication parameters for a single communication  
port.  
Name  
Range  
Description  
Communication Port Any valid communication port This parameter contains the ASCII descriptor for the  
(hardware dependent)  
50 .. 65535  
communication port to use. For example, for the D20 valid  
communication ports are “COM1" through “COM7".  
Message Timeout  
This parameter defines the total message timeout in  
milliseconds. Received messages must be completed in this  
time frame to be considered valid responses. Message timeout  
is measured from the end of command transmission to the end  
of the response.  
A typical value would be 500 character times.  
The character time for 9600 baud is 2 ms  
Inter-Character  
Timeout  
2 char times .. 65535  
This parameter specifies the maximum time, in milliseconds,  
that may expire between received characters. If this time  
expires, the message is considered to be finished.  
A typical value would be 3 character times.  
The character time for 9600 baud is 2 ms  
Retries Before  
Failure  
00 .. 65535  
1 .. 65535  
This parameter defines the number of times to retry a  
message before reporting a communication failure.  
A typical value is 3.  
Failures Before  
Off-line  
This parameter defines the number of consecutive  
communication failures that cause a SRU to be taken off-  
line.  
A typical value is 3.  
Table 3 Port Configuration Table Parameters  
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The following port parameters are fixed and can not be changed by user.  
Baud rate is set at 9600 baud  
All modem control signals are disabled.  
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Chapter 4: Configuring Win for the Serial  
Status DCA  
This chapter describes how to configure the WIN application to work with the Serial Status  
DCA. The WIN application allocates the WESDAC data points for all applications. In order to  
work properly the Serial Status DCA must have its own record within the WIN application's  
System Point Database. This record is referenced by the DCA Offset specified in the Main  
Application configuration table. Additional information on configuring WIN can be found in the  
WIN Configuration Guide listed in the Additional Documentation section of this document.  
4.1 WESDAC Point Allocation  
The Serial Status DCA requires the following number of points. Additional points configured  
will be initialized, but will never come on-line or be used by the Serial Status DCA.  
Digital Inputs:  
Digital Outputs: 1 per configured SRU  
Device Status: 1 per configured SRU  
15 per configured SRU  
For more information on the order of the configured points, refer to the Serial  
Status DCA Functional Specification listed in the Additional Documentation.  
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Appendix A:Messages Logged by the  
Serial Status DCA  
This appendix contains a description of all error messages posted to the WESMAINT Error Log  
by the Serial Status DCA. This appendix also provides an explanation of all output return codes  
returned by the Serial Status DCA.  
During startup, the Serial Status DCA checks its configuration tables for invalid entries. If no  
configuration errors are encountered the DCA attempts to spawn a number of processes during  
start-up. If any invalid data is found or a problem is encountered while starting one of the  
processes, an error message is logged to the WESMAINT Error Log.  
Messages logged to the WESMAINT Error Log by the DCA will be pre-pended with a process  
name. This name will be one of the following:  
A166:  
A166-<x>-<yy>: Where <x> is one of E, C or S  
<yy> is a process number  
Expressions in angular brackets like "<xx>", are filled with the appropriate values by the DCA.  
A.1 Fatal Error Messages  
Fatal error messages indicate the application is suspending due to either an invalid critical  
configuration parameter, or a critical process initialization sequence failed.  
F001: Unable to locate table <table_name>  
Cause  
The DCA was unable to locate one of its required configuration tables.  
Remedy:  
Ensure the <table_name> table exists and is comprised of at least one record.  
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F002: Unable to locate WESDAC_<x> table  
Cause  
The DCA was unable to locate one of the required WESDAC data base tables.  
Remedy:  
Ensure the WESDAC_<x> table exists in the WIN application and is comprised of at least  
one record. Refer to the chapter on configuring WIN for more information on configuring  
WESDAC points.  
F003: Insufficient WESDAC_<x> points, <y> req’d  
Cause  
There are not enough WESDAC data points allocated to the Serial Status DCA.  
Remedy:  
Ensure the DCA Index configured in A166APPL refers to the correct WIN CFG_DCA  
record.  
Refer to the Configuring WIN for the Serial Status DCA chapter, and ensure the required  
number of data points are allocated for the Serial Status DCA in the appropriate WIN  
System Point Database record. The WESDAC point types are described in the following  
table.  
WESDAC Name  
WESDAC_1  
Point Type  
Digital Inputs  
Digital Outputs  
Accumulators  
Analog Inputs  
WESDAC_2  
WESDAC_3  
WESDAC_4  
WESDAC_5  
WESDAC_6  
Analog Outputs  
Devices  
Table 4 WESDAC Point Types  
F004: Unable to open a channel to WIN  
Cause  
The DCA was unable to initiate communications with WIN.  
Remedy:  
Contact the Customer Service Department and report this error.  
F005: Not enough memory !!!  
Cause  
The DCA was unable to allocate enough memory to start the Serial Status DCA.  
Remedy:  
Reduce the amount of memory used by this or other applications in the system.  
Contact the Customer Service Department and report this error.  
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F006: Error creating event exchange, status=<x>  
Cause  
The system was unable to create a message exchange for the event process. This message  
exchange is vital to the operation of the entire application.  
Remedy:  
Contact the Customer Service Department and report this error.  
F007: Unable to spawn event process  
Cause  
The system was unable to start the event process. The event process is vital to the operation  
of the entire application.  
Remedy:  
Contact the Customer Service Department and report this error.  
F008: Event message exchange has been deleted  
Cause  
The event process message exchange has been deleted.  
Remedy:  
Contact the Customer Service Department and report this error.  
F009: get_pointer failed, status = <x>  
Cause  
The DCA was unable to locate the SOE buffer in memory.  
Remedy:  
Contact the Customer Service Department and report this error.  
F100: More than one record in A166APPL  
Cause  
The Main Application configuration table contains more than one record.  
Remedy:  
Ensure table A166APPL is comprised of a single record.  
F101: Invalid DCA Index in A166APPL  
Cause  
The DCA Index configured in the Main Application configuration table does not point to a  
valid record in the WIN CFG_DCA table.  
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Remedy:  
Ensure the CFG_DCA table in the WIN application is configured with a record containing  
the WESDAC points to be allocated for the Serial Status DCA.  
Ensure the DCA Index configured in A166APPL points to the correct record in the WIN  
CFG_DCA table.  
A.2 Non-Fatal Error Messages  
These messages indicate the application has encountered a non-fatal configuration error or a non-  
fatal stage of process initialization failed. The application will not suspend as a whole, but rather  
attempt to run in a limited or reduced capacity.  
E001: Child Died !!!  
Cause  
One of the Serial Status DCA processes stopped unexpectedly. If this error occurs, the  
system has become unstable.  
Effect:  
Serial Status DCA functionality will become unreliable.  
Remedy:  
Contact the Customer Service Department and report this error.  
E002: Error creating message exchange, sts=<x>  
Cause  
The system was unable to create one of the required message exchanges.  
Effect:  
One scan and one communication process will not be started. As a result, the Serial Status  
DCA will be unable to communicate over one of the configured communication ports.  
Remedy:  
Note the return status, <x>, and contact the Customer Service Department to report this error.  
E003: Unable to spawn com process, rec <x>  
Cause  
The system encountered an error while trying to spawn one of the communication processes.  
Effect:  
One of the communication processes will not be started. As a result, the Serial Status DCA  
will be unable to communicate over the communication port configured in record <x> of  
A166PORT.  
Remedy:  
Contact the Customer Service Department and report this error.  
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E004: Unable to spawn scan process, rec <x>  
Cause  
The system encountered an error while trying to spawn one of the scan processes.  
Effect:  
One of the scan processes will not be started. As a result, the Serial Status DCA will be  
unable to communicate over the communication port configured in record <x> of  
A166PORT.  
Remedy:  
Contact the Customer Service Department and report this error.  
E005: Com message exchange has been deleted  
Cause  
One of the communication process message exchanges has been deleted.  
Effect:  
One of the communication processes will no longer function. As a result, the Serial Status  
DCA will be unable to communicate over one of the communication ports.  
Remedy:  
Contact the Customer Service Department and report this error.  
E010:Unable to open <com_port>, status = <x>  
Cause  
The DCA was unable to open the requested communication port.  
Effect:  
The Serial Status DCA will be unable to communicate over the specified communication  
port, <com_port>  
Remedy:  
Ensure the specified communication port, <com_port>, is not already used in another record  
in A166PORT, or by another application.  
Ensure the specified port name is supported by the hardware platform being used. Valid port  
names for the D20 are COM0 to COM7. COM0 is normally used for WESMAINT.  
E011: <com_port> unable to set parameters, status = <x>  
Cause  
The system was unable to set the communication parameters for the specified communication  
port.  
Effect:  
The Serial Status DCA will be unable to communicate over the port, <com_port>.  
Remedy:  
Note the return status, <x>, and contact the Customer Service Department to report this error.  
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E012: <com_port> unable to set timers, status = <x>  
Cause  
The system was unable to set the communication timers for the specified communication  
port.  
Effect:  
The Serial Status DCA will be unable to communicate over the port, <com_port>.  
Remedy:  
Note the return status, <x>, and contact the Customer Service Department to report this error.  
E013: <com_port> unable to turn RTS on, status = <x>  
Cause  
The system was unable to turn on RTS for the specified communication port.  
Effect:  
The Serial Status DCA will not be able to reset the Serial Status Board connected to the port,  
<com_port>.  
Remedy:  
Possible hardware failures:  
D20 serial port failure.  
Serial Status Board failure.  
E100: A166PORT rec <x>, Invalid Baud Rate  
Cause  
One of the Baud Rates configured in the Port table is not supported by the DCA.  
Effect:  
The communication port defined by record <x> in A166PORT will not be initialized or used  
by the DCA.  
Remedy:  
Baud rate for the Serial Status DCA must be set at 9600.  
E101: A166PORT rec <x>, Invalid Com Failures  
Cause  
One of the Failures Before Off-line parameters configured in the Port table is too small.  
Effect:  
The communication port defined by record <x> in A166PORT will not be initialized or used  
by the DCA.  
Remedy:  
Ensure the Failures Before Off-line parameter configured in record <x> of A166PORT is not  
zero.  
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A.3 Warning Messages  
Warning messages indicate recoverable run-time errors, either within the application or through  
one of the software interfaces. The application will attempt to handle these errors without  
suspending or jeopardizing the integrity of the system. If a warning message occurs repeatedly,  
contact the Customer Service Department to report the error.  
W001: Req_x failed, status = <x>  
W002: Send_x failed, status = <x>  
W003: WIN_read failed  
W004: WIN_write failed  
W005: <COMX> reset  
W006: Reset Status DCA on <COMX>  
W007: Rxed invalid resp: <Received Message in Hex format>  
A.4 Information Messages  
Information messages indicate the application is taking some special action based on certain  
configuration or initialization criteria.  
I001: No A166APPL table, deleting.  
Cause  
The DCA could not find the Main Application configuration table. If the Main Application  
configuration cannot be located, the application assumes the user does not want it to run.  
Effect:  
The Serial Status DCA will delete itself from the system.  
Remedy:  
If the Serial Status DCA is intended to run, ensure the Main Application configuration table,  
I100: A166PORT rec <x>, Flow Control <Flow Control Value>, disabling  
Cause  
One or more modem signals are enabled.  
Effect:  
Modem signals will default to disabled.  
Remedy:  
All modem signals must be disabled.  
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I101:A166PORT rec <x>, Resp Timeout < <min>, defaulting  
Cause  
The Response Timeout configured in one of the port records is too small  
Effect:  
The Response Timeout in record <x> of A166PORT will default to a typical value (1000  
character times).  
Remedy:  
·Refer to the chapter entitled Configuring the Port Table and ensure a valid Response  
Timeout is configured in record <x> of A166PORT.  
I102:A166PORT rec <x>, Char Timeout < <min>, defaulting  
Cause  
The Inter-Character Timeout configured in one of the port records is too small.  
Effect:  
The Inter-Character Timeout in record <x> of A166PORT will default to a typical value (5  
character times).  
Remedy:  
Refer to the chapter entitled Configuring the Port Table and ensure a valid Inter- Character  
Timeout is configured in record <x> of A166PORT.  
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