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Woodward EGCP-2 Communications Manual

Woodward EGCP-2 Communications Manual

Engine generator control package
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EGCP-2 Communications Manual
EGCP-2
Engine Generator Control Package
Manual 26181 (Revision A)

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Summary of Contents for Woodward EGCP-2

  • Page 1 EGCP-2 Communications Manual EGCP-2 Engine Generator Control Package Manual 26181 (Revision A)
  • Page 2 Revisions—Text changes are indicated by a black line alongside the text. Woodward Governor Company reserves the right to update any portion of this publication at any time. Information provided by Woodward Governor Company is believed to be correct and reliable. However, no responsibility is assumed by Woodward Governor Company unless otherwise expressly undertaken.

  • Page 3: Table Of Contents

    3. H ............5  HAPTER ARDWARE ONNECTIONS 4. M ...... 6  HAPTER ONITORING OFTWARE PERATION   Operating EGCP-2 Monitoring Software .............. 11 5. S 18  HAPTER INK AND ATCH INDOW ONFIGURATION OFTWARE   ServLink Variable List ................... 21 6. M...

  • Page 4: Electrostatic Discharge Awareness

    PCB from the control cabinet, place it in the antistatic protective bag. CAUTION—ELECTROSTATIC DISCHARGE To prevent damage to electronic components caused by improper handling, read and observe the precautions in Woodward manual 82715, Guide for Handling and Protection of Electronic Controls, Printed Circuit Boards, and Modules. Woodward...

  • Page 5: Chapter 1. General Information

    Whenever the RS-422 protocol setpoint is changed, the EGCP-2 must be powered down, then powered up again to reset to the new protocol. If ServLink is chosen for the protocol selection, the EGCP-2 will communicate in the ServLink protocol, which is used with the Woodward EGCP-2 HMI software...

  • Page 6: Servlink Overview

    All the monitoring information which can be obtained from the hardware can also be accessed by the EGCP-2 software in a format which is identical to that of the hardware. This makes the software very familiar to those accustomed to the EGCP-2 control keypad functions and LCD readout displays.

  • Page 7: Egcp-2 Hmi Software Installation

    Once you have typed the proper command in the dialog box for setup, press the Enter (or Return) key on your computer. Windows will automatically begin reading the CD drive for setup instructions from the EGCP-2 HMI CD setup file located there.
  • Page 8 EGCP-2 icons that are created during the setup process. These icons are automatically inserted into the Program Files menu under the EGCP-2 label. The installation process has made a new set of programs under the EGCP-2 HMI 1.00 program file. Click once on the desktop tool bar Start button, and select the Programs option.

  • Page 9: Chapter 3. Hardware Connections

    Modem connections are very similar, but now a modem is required both at the computer and at the EGCP-2 end of the network. The modem may be an internal or external type at the computer, and must be an external type at the EGCP-2 control.

  • Page 10: Chapter 4. Monitoring Servlink Software Operation

    Now that the software has been installed on the hard drive of the computer, and the desired hardware connections are in place between the computer and the EGCP-2 controls, the next step is to run the software and confirm operation of the entire communications network.
  • Page 11 (COM) or modem will be used to communicate using RS-232 protocol to the EGCP-2 control. Clicking on the drop down box will tell the ServLink software to scan the computer and list any communications ports which are not being used by other applications, that may be used for serial communications.
  • Page 12 EGCP-2 control are made in a direct fashion (no secondary devices or other EGCP-2 controls can reside on the same network). There must be only the computer and one EGCP-2 control on the network for point-to-point communications.
  • Page 13 ServLink software is reading the control information. That screen will look like this: Once communications are established, and the data is read from the EGCP-2 control network, the ServLink software will show each control it is communicating on the network by that control’s network address.
  • Page 14 Typically, this file will be stored in the EGCP-2 directory on the hard drive of the computer ServLink is operating from. The file name given to the network definition file will be given a “.net”...

  • Page 15: Operating Egcp-2 Monitoring Software

    EGCP-2 controls, the EGCP-2 Monitoring Software Tool can be used to view the various parameters of each control on the RS-422 network. To open the EGCP-2 controls program, click once on the Start button in the desktop toolbar. Select Programs, Woodward, EGCP-2 HMI 1.00, and EGCP-2 HMI.
  • Page 16 Master Situation Monitor, as shown here. Then click the Front Panel icon on the lower section of the screen next to the Woodward logo or simply double-click the unit that is to be observed.
  • Page 17 Manual 26181 EGCP-2 Communications The Front Panel Display for that unit EGCP-2 (Unit 1 in this case) will pop up as shown below: Multiple units can be viewed on the Windows desktop simultaneously. Each unit is “stacked” on top of the others. You can view any unit by clicking the left mouse key once on any part of that unit’s Front Panel display window, or if the front...
  • Page 18 The buttons of the front panel operate in the same manner as the EGCP-2 as well. The front panel display operates in the same manner as most desktop windows, except that the size of the front panel display cannot be changed or maximized.
  • Page 19 Manual 26181 EGCP-2 Communications The front panel display for Unit 1 indicates two alarms in the System Status menu. Clicking the Alarm/Event button with the left mouse button displays the Alarm / Event Log of the control to the right hand LCD display as shown below: The alarm event list shows two alarms.
  • Page 20 When all alarms have been cleared, the list displays “None Recorded” as shown. Pressing the Status button on the front panel display will revert the EGCP-2 display back to the status mode. Now both left and right displays show the status information for the item selected.
  • Page 21 EGCP-2. For more information on how to navigate between the various menus and menu items in the EGCP-2, see the EGCP-2 Operation and Installation Manual number 26174.

  • Page 22: Chapter 5. Serv Link And Watch Window Configuration Software

    ServLink and Watch Window Configuration Software In addition to the EGCP-2 HMI software, the EGCP-2 can also be configured using the Woodward Watch Window Professional software. The Watch Window software adds the ability to monitor data from a computer. It also allows a user to save the control set points to a tab-delimited text file.
  • Page 23 Manual 26181 EGCP-2 Communications The Application Control window (1) is the main window for the software. It is used to manage the Explorer window (2) and the Inspector window (3). A tool bar is provided with icons to open, close, and save Inspectors, and to upload and download the tunable setpoints.
  • Page 24 EGCP-2 Communications Manual 26181 In the inspector screen the variable name is shown in four parts. First the identity of the control is listed under the Control column. Then the Category, Block, and Field are listed. Each variable will have a unique Field name. The Block is the folder that the variable was located in, and the Category is the top level folder.

  • Page 25: Servlink Variable List

    Manual 26181 EGCP-2 Communications ServLink Variable List The ServLink variables are divided into five Category folders. The first four folders contain information to be read from the control. The SPt, or Setpoint folder, contains the setpoint menus, where tunable setpoints can be adjusted.
  • Page 26 EGCP-2 Communications Manual 26181 Table 5-1. ServLink Variable List <<no category>> Category Block Field Description Application ID Software part number Configuration ID Compile date Control ID Control number 1 through 8 Control Status Should return 1 <<no block>> Product ID...
  • Page 27 Discrete input 16 Status Front Panel Information Under the Front Panel heading are two blocks of information. These variables are used by the EGCP-2 HMI program that is described in Chapter 3 of this manual. The Button variables are commands that operate just as if an operator has pressed one of the buttons on the front panel.
  • Page 28 EGCP-2 Communications Manual 26181 Table 5-3. ServLink Variable List Front Panel Category Block Field Description Alarm Acknowledge Same as Alarm Clear button Alarm List Same as Alarm / Event button Same as ATS button Commit Same as Enter button Configure...
  • Page 29 Manual 26181 EGCP-2 Communications Gen Overview Information Under the Gen Overview heading are 5 Blocks of variables. All of the three phase voltage, current, and power information is contained in these folders. Table 5-4. ServLink Variable List Gen Overview Category...
  • Page 30 Cycling the control input power resets the control. Because the control power must be reset, it might be better to change the configuration settings at the front panel itself or remotely using the EGCP-2 HMI program. These methods do not require a reboot.
  • Page 31 Manual 26181 EGCP-2 Communications Block Field Description 20 Voltage Bias Type 0 = ±1 V 1 = ±3 V 2 = ±9 V 21 Ckt Breaker Control 0 = Breaker 1 = Contactor 22 Operating Mode 0 = No Parallel...
  • Page 32 EGCP-2 Communications Manual 26181 Block Field Description 30 Fault 4 Timer 31 Remote Fault 5 0 = Disabled 1 = Warning 2 = Visual Alarm 3 = Audible Alarm Shutdowns and 4 = SoftShutdown 5 = HardShutdown Alarms 32 Fault 5 Timer...
  • Page 33 Manual 26181 EGCP-2 Communications Block Field Description 0 Sync Mode 0 = Check 1 = Permissive 2 = Run 1 Sync Gain 2 Sync Stability 3 Voltage Matching 0 = Disabled 1 = Enabled 4 Voltage Window 5 Max Phase Window...
  • Page 34 EGCP-2 Communications Manual 26181 Block Field Description 0 Process Action 0 = Direct 1 = Indirect 1 Process Gain 2 Process Stability 3 Process Derivative 4 Process Deadband 5 Process Droop 6 Process Filter 7 Process Reference 8 Raise Rate...
  • Page 35 The more variables that are on the screen the more taxing this will be on the EGCP-2 processor to provide this data. As more and more items are added, the refresh rate of the control will slow. Do not open more than one Watch Window session at a time.
  • Page 36 EGCP-2 Communications Manual 26181 This list can be sorted by clicking on the Data menu item; choose sort list by Configuration ID in ascending order. The first two categories, Control Overview and Front Panel, should be ignored and may be deleted. The next group will be the SPT 0 values, which are configuration items.
  • Page 37 The asterisk will appear by the configuration items, which will prevent the engine from starting. The asterisks must be cleared by committing the values or cycling power to the EGCP-2. Woodward...
  • Page 38 Watch Window software. Saving Setpoints to a File on the Computer: 1. Connect RS-232 to RS-422 cable between EGCP-2 and computer. 2. In the Sequencing and Comms menu, the item “422 Protocol” must be set for ServLink.

  • Page 39: Chapter 6. Modbus Rtu Communications For The Egcp-2 Panel

    There are several items to note when determining the Timeout setting. The EGCP-2 must use a baud rate of 9600 bps. At this speed a complete transfer of all of the EGCP-2 Modbus addresses (approximately 270) would take about one second.
  • Page 40 This time must be also accounted for. For multiple units this time is increased by the number of units in the system. If there are three EGCP-2’s in the system it should be understood that each one would be allowed one second to completer its transmission, so the Modbus timeout tunable should be set to 3.0 seconds on...
  • Page 41 Modbus network and the devices communicating on that network. As mentioned in the previous section, the Poll time is dependent on the fact that the EGCP-2 communicates at only 9600 baud. Poll times of at least one second per unit would be recommended.
  • Page 42 Modbus Address Information Boolean Writes—Addresses 00001–00016, 00024, and 00037 The Boolean write variables can be used for remote control of the EGCP-2 over Modbus. Fourteen variables are available to mimic the fourteen discrete input switches. The Gen CB Aux input and Mains CB Aux input are not included in the Modbus addresses.
  • Page 43 False is sent to 00003, then all three have been sent by Modbus and the control will go into Auto Mode. Example 3 Modbus was in control, Hardware switch changes state. Hardware EGCP-2 I/O Display Switches Modbus Commands Auto Off 00001 was True...
  • Page 44 Modbus control is desired. In this way, it is not necessary to track which hardware inputs may have changed. There is no indication on the EGCP-2 display or over the Modbus, to indicate that the control is following Modbus or hardware commands. Both can be in control at the same time.
  • Page 45 Modbus polling time, a software latch on the alarm indication is used. This latch does not affect the actual indication of the alarm condition on the EGCP-2 control panel. The latch is active only on the Modbus messaging between the EGCP-2 panel and the Modbus communications.
  • Page 46 EGCP-2 Communications Manual 26181 Analog Read—Addresses 30001–30073, 30215-30350 The Analog Read variables are numeric representations showing the measured values of the control inputs, the alarm action, and the mode of operation for certain functions of the control. These values use a signed integer format that does not support decimal places.
  • Page 47 Analog Read value will not be the same as the Analog Write. If a user changes one of these setpoints from the front panel of the EGCP-2 by hand, the Analog Read value will show the new value of the setpoint, which may be different from the last Analog Write that was sent.
  • Page 48 EGCP-2 Communications Manual 26181 And inverse to this: When increasing (decrementing value) a unit's priority, every active unit (in multiple unit configuration and auto mode) on the same network with a lower priority (higher value) than the unit, which is currently having its priority, changed, will decrease (increment value) priority when the priority change is committed.
  • Page 49 Manual 26181 EGCP-2 Communications Boolean Reads Modbus Type Item Semantics Address 10001 Bus/ Mains PT Switch in Transition 0 = Not Active, 1 = Active 10002 Mains Stable Indication 0 = Not stable (waiting for timeout), 1 = Stable 10003...
  • Page 50 EGCP-2 Communications Manual 26181 Modbus Type Item Semantics Address 10055 Process High Limit Alarm Status 0 = No Alarm, 1 = Active Alarm 10056 Process Low Limit Alarm Status 0 = No Alarm, 1 = Active Alarm 10057 Remote Fault1 Alarm Status...
  • Page 51 Manual 26181 EGCP-2 Communications Modbus Type Item Semantics Scale Address 30025 Overcurrent Action See Analog Read Address information 30026 Gen Reverse Power Alarm See Analog Read Action Address information 30027 Gen Reverse VAR Alarm See Analog Read Action Address information...
  • Page 52 EGCP-2 Communications Manual 26181 Modbus Type Item Semantics Scale Address 30057 Generator Phase C-N Volts Always Line-Neutral 32767 30058 Mains Phase A-N Volts Always Line-Neutral 32767 30059 Gen Phase A current Amps -32768 32767 30060 Gen Phase B current Amps...
  • Page 53 Manual 26181 EGCP-2 Communications Modbus Type Item Semantics Scale Address Load Control Mode 0 = Normal 1 = Soft Transfer 30294 2 = kW Droop * Base Load Reference 30,000 30300 Setpoint 30303 Load Time seconds 7,200 30304 Unload Time...
  • Page 54 EGCP-2 Communications Manual 26181 Modbus Type Function Semantics Scale Address 40255 Rated Power 30,000 40256 Rated Volt-Amps * 30,000 40257 Rated Volt-Amps 30,000 Reactive 40267 Operating Mode 0 = No Parallel 1 = Mains Parallel * 40268 Number of Units 0 = Single...
  • Page 55 Manual 26181 EGCP-2 Communications Modbus Type Function Semantics Scale Address 40348 Max Gen Load % of rated load 40349 Reduced Load 1200 Delay Seconds 40350 Max Stop Time Seconds 1200 NOTE * Items marked with an Asterisk can only be changed when the engine is not running.

  • Page 56: Chapter 7. Download.exe Setpoint Utility

    –?) for a complete list of the command-line options (see below). Establishing a Connection: Connect the RS-232 / RS-422 cable between the EGCP-2 and the computer. See the Communication Ports section of the Operation and Installation manual 26175 for more information about this cable interface.
  • Page 57 On the EGCP-2, under the SEQUENCING AND COMMS menu, step to the “422 Protocol” item. Select "Upload Setpoints" and press the Enter key. Cycle power to the EGCP-2. When the EGCP-2 passes the self-tests, it will be ready to start uploading setpoints.
  • Page 58 EGCP-2 Communications Manual 26181 Cycle power to the EGCP-2. When the power is restored to the control the download will begin. A scroll bar appears on the computer screen showing the progress of the download (see below). On the EGCP-2 screen the text “SETPOINTS” is displayed.

  • Page 59: Chapter 8. Service Options

    A Recognized Turbine Retrofitter (RTR) is an independent company that does both steam and gas turbine control retrofits and upgrades globally, and can provide the full line of Woodward systems and components for the retrofits and overhauls, long term service contracts, emergency repairs, etc.

  • Page 60: Woodward Factory Servicing Options

    Flat Rate Remanufacture: Flat Rate Remanufacture is very similar to the Flat Rate Repair option with the exception that the unit will be returned to you in “like- new” condition and carry with it the full standard Woodward product warranty (Woodward Product and Service Warranty 5-01-1205). This option is applicable to mechanical products only.

  • Page 61: Returning Equipment For Repair

    CAUTION—ELECTROSTATIC DISCHARGE To prevent damage to electronic components caused by improper handling, read and observe the precautions in Woodward manual 82715, Guide for Handling and Protection of Electronic Controls, Printed Circuit Boards, and Modules.

  • Page 62: Engineering Services

    EGCP-2 Communications Manual 26181 Engineering Services Woodward offers various Engineering Services for our products. For these services, you can contact us by telephone, by email, or through the Woodward website. • Technical Support • Product Training • Field Service Technical Support is available from your equipment system supplier, your local Full-Service Distributor, or from many of Woodward’s worldwide locations,...

  • Page 63: Technical Assistance

    Type of Fuel (gas, gaseous, steam, etc) Rating Application Control/Governor Information Please list all Woodward governors, actuators, and electronic controls in your system: Woodward Part Number and Revision Letter Control Description or Governor Type Serial Number Woodward Part Number and Revision Letter...
  • Page 64 Phone +1 (970) 482-5811 • Fax +1 (970) 498-3058 Email and Website—www.woodward.com Woodward has company-owned plants, subsidiaries, and branches, as well as authorized distributors and other authorized service and sales facilities throughout the world. Complete address / phone / fax / email information for all locations is available on our website.

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