SOP Sample Gate and SbyC Operating Instruction for Lower Granite Juvenile Facility

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Standard Operating Procedure
Subject:
Sample Gate and SbyC Operating Instructions for Lower Granite Juvenile Facility
Author:
Troy Humphrey
Approved by:
Don Warf

Contents

Objective

The Objective of this SOP is to give site personnel a working knowledge of the various functions available to them for entering sample rates and making up samples that are missed.

Scope

This SOP is for site personnel responsible for entering sample rates and strictly pertains to Lower Granite’s Juvenile fish facility. The sample gate is controlled by a Programmable Logic Controller located near the separator. Commonly referred to as a PLC, this device is accessed by a Panel View 600 (PV600) located in the Separator Shack. The PV600 took the place of a device referred to as a DTAM. The PV600 acts as a menu driven operator interface to the PLC. All functions of the sample gate are set by PV600 operator inputs and control switches mounted on the PLC panel.

Responsibilities

The personnel responsible for entering sample rates are determined by the site biologist.

Procedure

Overview


  1. Through out this manual the following formatting shall apply:
    • PAGE TITLE , PARAMETER HEADING or SCREEN NAVIGATION.
      • Used to indicate the current graphic being displayed or what the value below the heading represents or what screen will appear if the box on the screen is touched.
    • ‘PARAMETER’
      • A user settable value such as ‘SAMPLE PERCENTAGE’ or a PLC generated value such as ‘TIME REMAINING’.
    • Switch or SWITCH SETTING.
      • User settable switches that effect gate and sample functionality such as: The SbyC Enable is set to OFF .
  2. The PV600 is a touch screen operator interface. The user can simply touch certain areas on the screen to perform specific tasks. The screens have different colored boxes and text that will help the user identify their functionality.
    • Dark blue boxes with yellow text are values produce by the PLC and are dependent on parameters entered by the user.
    • Light blue boxes are screen push buttons that allow the user to navigate to different screens or to open data entry screens.
      • Once a data entry screen is open the numeric pad to the right of the screen is used to enter in values.
  3. Touch anywhere on the screen if the screen is black due to the screen saver being on.
    • The main menu screen will appear and look similar to the screen displayed below.
    • If a screen other than the one below appears press the RETURN TO MAIN box located in the lower section of the screen.


Image:GRJ_PV600_MAIN.jpg



  • The current 'SAMPLE PERCENT' is displayed under the heading SAMPLE PERCENT. The current 'OPENINGS PER HOUR' is displayed under the heading OPENINGS / HOUR. The time remaining until the next sample is displayed under the heading TIME TO NEXT SAMPLE. If the sample gate is in sample the 'SAMPLE TIME REMAINING' will be displayed under the heading SAMPLE TIME REMAINING.
  • Under the heading SAMPLE MODE the current mode of the sample is displayed. There are four possible modes that can be displayed. A graphic and explanation of each is listed below.



Image:GRJ_PV600_MAIN_BYPASS.jpg


  • This graphic shows the sample mode being in ‘BYPASS’, meaning the Sample Mode switch located out by the gate has been put in the OFF position and no sample will occur.



Image:GRJ_PV600_MAIN.jpg


  • This graphic shows the sample mode being in ‘AUTO’, meaning the Sample Mode switch located out by the gate has been put in the AUTO position and the sample gate will open and close based on the 'SAMPLE PERCENT' and 'OPENINGS PER HOUR'.



Image:GRJ_PV600_MAIN_100.jpg


  • This graphic shows the sample mode being in ‘100%’, meaning Sample Mode switch located out by the gate has been put in the ON position and the sample gate will remain in the sample position.



Image:GRJ_PV600_MAIN_MAKEUP.jpg


  • The text along the bottom of the screen is the sample make up status message and displays the availability of the sample make up function which will be discussed later in this procedure. If the sample is in the ‘MAKEUP’ mode the sample mode will be displayed like this graphic. Notice that the message at the bottom of the screen has changed as well. The back ground color of the sample mode indication and the message at the bottom of the screen will flash when the sample is in the ‘MAKEUP’ mode.



Changing the Sample Percent

  1. From the MAIN menu touch the box under the SAMPLE PERCENT heading.
  2. A display box will appear over the screen with a message stating ‘Enter Value: ( 0.001 to 99.999 ). Use the numeric keypad to the right of the display to enter any percent between 00.001% and 99.999% and press the enter button. This will enter the new ‘SAMPLE PERCENT’ and automatically send you back to the MAIN menu.
  3. Once the new ‘SAMPLE PERCENT’ is entered the new sample cycle will start. The cycle will start with the gate in the closed (not sampling) part of the cycle.
  4. If you decide not to enter a new ‘SAMPLE PERCENT’ press the lower left arrow of the numeric keypad, this arrow will act as a backspace.If you press it enough times it will return you to the MAIN menu.
  5. The PLC compares the current ‘SAMPLE PERCENT’ to the ‘SAMPLE PERCENT’ just entered. If there is not a change the PLC will ignore the entry.



Changing the Openings Per Hour

  1. From the MAIN menu touch the box under the OPENINGS / HOUR heading .
  2. A display box will appear over the screen with a message stating ‘Enter Value: ( 1 to 12 ). The new amount of ‘OPENINGS PER HOUR’ can be entered here. Using the keypad to the right, enter any number of openings between 1 and 12 and press the enter button. This will enter the number of ‘OPENINGS PER HOUR’ and automatically send you back to the MAIN menu.
  3. Once the new ‘OPENINGS PER HOUR’ is entered the new sample cycle will start. The cycle will start with the gate in the closed (not sampling) part of the cycle.
  4. If you decide not to enter a new ‘OPENINGS PER HOUR’ press the lower left arrow of the numeric keypad, this arrow will act as a backspace. If you press it enough times it will return you to the MAIN menu.



Sample Makeup

The sample makeup graphic is used for making up a sample at the current ‘SAMPLE PERCENT’ and ‘OPENINGS PER HOUR’. The sample makeup graphic is accessed by touching the lower part of the MAIN screen over the sample makeup status message. The conditions for sample makeup are as follows.

  • There must be enough time remaining between samples, plus 5 seconds in order to make up a sample. For example if the ‘SAMPLE PERCENT’ is at 10% and the ‘OPENINGS PER HOUR’ is 6 the amount of time the sample gate is in sample is 60 seconds. If there are 65 seconds or less remaining before the next sample, sample makeup will not be available. If there is 66 seconds or more remaining sample makeup will be available.



Image:GRJ_PV600_SAMPLE_MAKEUP_NA_BYPASS.jpg
Sample Mode is in the BYPASS
  • If the Sample Mode is in the BYPASS mode, sample makeup will not be available.



Image:GRJ_PV600_SAMPLE_MAKEUP_NA_100.jpg
Sample Mode is in 100%
  • If the Sample Mode is in 100% mode, sample makeup will not be available.



Image:GRJ_PV600_SAMPLE_MAKEUP_NA_AUTO.jpg
Sample Mode is in AUTO
  • If the Sample Mode is in AUTO and already in a sample, sample makeup will not be available.
  • When the Sample Mode is in AUTO and not in a sample and sample makeup is not available it is due to the time remaining between samples is less than the time needed to makeup a sample.



Below is a series of graphics showing the different states the sample makeup graphic may be in.

Image:GRJ_PV600_SAMPLE_MAKEUP_AVAILABLE.jpg
Sample Makeup Available
  • The F1 button is located on the lower left hand side of the PV600. When you press F1 sample makeup will become active.



Image:GRJ_PV600_SAMPLE_MAKEUP.jpg
Sample Makeup Active
  • The back ground color of the upper left indication and the sample mode will flash when sample makeup is active.
  • If you mistakenly initiated a sample makeup you can press F2 to cancel it.



Image:GRJ_PV600_SAMPLE_MAKEUP_CANCELED.jpg
Sample Makeup Canceled
  • Sample Makeup Canceled will be displayed for 1 second when you cancel sample makeup.



Gate Control Switches

The PLC panel located near the sample gate has five switches.

  1. East Raceway Diversion Gate (E Gate and Flip Gate) Mode Switch
    • The upper left switch is the Mode Switch that controls the operation of the slide gate and flip gate on the east raceway. It has three mode positions.
      • The first or left position is labeled BYPASS. When the switch is in this position the slide gate will be open and the flip gate will be to the river. All fish will be routed to the river.
      • The second or middle position is labeled GENERAL COLLECTION. When the switch is in this position the slide gate will remain closed and all fish will go to the east raceways.
      • The third or right position is labeled MARKING. When the switch is in this position the slide gate will act as a diversion gate in that it will open when PIT Tagged fish are detected on the coils just upstream of the gate. The flip gate will be to raceway 10. Fish that are not diverted will go to the east raceways (6-9).
  2. Sample Gate Mode Switch
    • The middle left switch is the Sample Mode switch. It has three mode positions.
      • The first position from left to right is labeled OFF for BYPASS. With the switch in this position there will be no sampling.
      • The second or middle position is labeled AUTO for NORMAL operation. With the switch in this position, sampling will occur based on the 'SAMPLE PERCENT' and 'OPENINGS PER HOUR entered.
      • The third position is labeled ON for 100%. With the switch in this position the sample gate will stay in the sample position.
  3. Divert During Sample
    • The top right switch is the Divert During Sample switch. With this switch ON, PIT tagged fish will be diverted during the sample. This will occur at any sample rate but not during BYPASS mode.
  4. A Gate Switch
    • The bottom left switch is the A GATE test switch. This momentary switch is use to test the operation of the A slide gate. The switch will not work during sample unless the Divert During Sample mode is ON.
  5. B Gate Switch
    • The bottom right switch is the B GATE test switch. This momentary switch is used to test the operation of the B slide gate. The switch will not work during sample unless the Divert During Sample mode is ON.

The E Gate Switch is located near the gate. This momentary switch is used to test the operation of the E slide gate. It is only active when the Mode Switch is in the MARKING position.



Gate Sensors and Trouble Light

Gate Sensors

  1. The gate sensors installed on the A,B and E Slide Gates will be maintained by PSMFC but provide indication to site personnel when there are problems with either the sensors or the gates.
  2. The sensors were installed to reduce or eliminate the 'double slam' that occurs during heavy fish traffic. They are also used to monitor the state of the gate and provide visual indication via a trouble light if one of the gates is stuck open or stuck closed. The same trouble light will be lit if one of the gate sensors is missed 3 times or stuck on 3 separate times for more than 3 seconds.
  3. If the trouble light is on there is either a problem with the gate or the sensors and possibly both. The operator will have to investigate the cause of the trouble light.
  4. When the trouble light is on, the 'double slam' logic for the gate that is experiencing trouble will be removed from the logic.
    • Example 1
      • The trouble light is on and A Gate Sensor Trouble is flashing on the PV300.
        • A Gate will remove the 'double slam' logic and work as it has in past years until the issue is resolved by PSMFC and re-set.
    • Example 2
      • The trouble light is on and B Gate is stuck open
        • B Gate will remove the 'double slam' logic and work as it has in past years until the gate is unstuck and the alarm is reset by the operator.


Gate Trouble Light

To investigate a trouble light, open the enclosure that contains the switches for setting Divert During Sample and view the messages on the PV300 screen. You should see something similar to the graphic below.

Image:GRJ_Gate_Trouble.jpg



  • ‘GATE TROUBLE’ will be flashing if there is a problem with the sensors or the gate.
  • Press F2 to view the Gate and Sensor Status page.


Image:GRJ_Sensor_Status_AGate_Trouble.jpg



  • The above graphic illustrates a problem with A Gate. Investigate if the gate is either stuck open or closed, remedy the problem and press F1 to clear the alarm. If the problem is with B gate you will have to press F2 to clear the alarm.


Image:GRJ_Sensor_Status_BGate_Sensor_Trouble.jpg



  • The above graphic illustrates a problem with B Gate’s sensors. Call PSMFC.
  • Press F3 to view E Gate Sensor and Gate status.


Image:GRJ_Sensor_Status_EGate_Sensor_Trouble.jpg



  • The above graphic illustrates a problem with E Gate’s sensors. Call PSMFC.

Frequently Asked Questions

Q: Can I damage the system?
A: No. No operator inputs can damage the system.

Q: Can I use the gate test switches at any time?
A: No. The test switches will not work during an active sample when the Divert During Sample switch is set to OFF.

Q: Can I enter an incorrect value?
A: Yes. Caution should be used when determining sample gate open time. An example would be entering 12 openings per hour with a 00.1 percent sample rate. Point one percent of an hour would be 3.6 seconds. When divided by 12 gate openings per hour the open time per opening would be .3 second. This is not enough time to fully open the gate. The same consideration should be used when using a 99.9 sample rate.

Q: Can I enter a value out of range?
A: No, the PV600 will give you a ‘value out of range’ error.

Q: When the mode switch is set to 100%, will PIT tagged fish be diverted from the sample?
A: No. They will only be diverted if the Divert During Sample switch is ON.

Q: With the mode switch set to AUTO (Normal Operation) and the Divert During Sample switch set to ON, will PIT tagged fish be diverted from the sample.
A: Yes, With the Divert During Sample switch set to ON, PIT tagged fish will be diverted from the sample.

Q: Can the sample be shut off?
A: Yes, when mode switch is set to OFF(Bypass) the sample will be shut off.

Q: How can I synchronize a new sample rate with the top of the hour?
A: When a new sample rate or new number of openings per hour is entered the new cycle starts exactly when the enter button is pushed. It should be noted that the value you are changing to synchronize with the top of the hour must be a new value. If you don’t want to change your ‘SAMPLE PERCENT’ or ‘OPENINGS PER HOUR’ but wish to synchronize at the top of the hour you must enter a different ‘SAMPLE PERCENT’ or ‘OPENINGS PER HOUR’ just prior to the top of the hour. This will cause the PLC to see a change in sample rate and re-calculate the sample times. At the top of the hour re-enter the ‘SAMPLE PERCENT’ or ‘OPENINGS PER HOUR’ you wish to run at.

Q: What will happen if a power outage occurs? Will I lose my settings?
A: No. All sample settings are stored in non-volatile memory.


References


Contact PSMFC at (509) 735-2773

Name Extension
Don Warf 1
Scott Livingston 2
Darren Chase 3
Alan Brower 4
Troy Humphrey 5
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