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  • COM4 - Input. WPS telemetry is received via an RS485 serial connection from the Schlumberger rack.
  • The telemetry is a binary stream.
  • It is delivered at 19200 baud, 8 bits, no parity, 1 stop bit, no flow control.
    These settings are supplied by the software. These are not the defaults you will see in Windows Device Manager.
  • COM3 - Output. "SLB to RW--a LabVIEW 2020 executable program--processes " formats incoming WPS telemetry (COM4) to WITS format. The WITS stream is output via COM3 (RS232).The decoded telemetry is readable text. No need to run PuTTy--SLB to RW displays the data stream .It is delivered at 9600 baud 8 bits, no parity, 1 stop bit, no flow controlis forwarded to COM3 (RS232).
  • COM1 - Output from "SLB to RW output; RigWatch input". Input WITS to RigWatch.
    • COM3 is physically connected in loopback fashion to COM1. The loopback cable is known as a null-modem or cross-over cable.The data is delivered at 9600 baud, 8 bits, no parity, 1 stop bit, no flow controlmodem or cross-over cable.

During operations the RigWatch Master receives WITS data on device "COM1 - Remote 6" (via the network)--i. I.e. via the winch telemetry laptop aka  RigWatch the RigWatch instance on Remote 6 (aka 192.168.1.11) passes COM1 data to the RigWatch Master--when the Master is configured to listen for that device.

Starting the Winch Telemetry Laptop

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  • COM4 is a National Instruments device RS-485 to USB.
    • The RS485 connector is tied to the Schlumberger WPS output.
    • The USB connector ties to the (only) left-hand-side (toward the back) USB connector.
  • COM3 is provided via a Tripplite Keyspan USB to Serial RS232 device.
    • The USB cable ties to the (only) laptop backplane (right-hand-side) USB connector.
    • The 9-pin RS232 connector attaches to a null-modem cable.
    • The null-modem cable attaches to the only 9-pin RS232 connector on the laptop backplane (left-hand-side).

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  1. A single deliberate press of the laptop power button suffices (upper-right of the built-in keyboard).
  2. Login as DAQ. The usual. Wait, up to a minute.
    • SLB to RW is run automatically.
    • RigWatch is run automatically.
    • Windows profile startup processing takes precedentprecedence. It may be up to 30 seconds 30 sec - 1 min before SLB2RW and RW start.
    • SLB2RW will typically launch faster than RW.
    • If the Schlumberger winch feed is on, SLB2RW will begin displaying winch telemetry within 3 seconds.

Because logging occurs at such wide intervals, it is best to catch the RigWatch startup before it defaults to the previously used hole. Choose "Start New Well", register to reconnect to the Master (192.168.1.7), and then continue RigWatch startup.

Notes

  • The DAQ profile is configured for Windows Remote Desktop access via 192.168.1.11.
  • SLB to RW is installed in C:\Users\daq\Documents\WPS to WITS - SLB to Rigwatch: SLB2RW.exe
  • RigWatch is installed in C:\RWPRO. The executable resides at C:\RWPRO\Tools\interfaces\rw.exe.
  • The shortcuts used to launch both programs reside in C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\.

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