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NPort Advanced Functions - Driver

NPort Advanced Functions - Driver. Moxa Connectivity 2012-08. Advanced Functions – Overview. Secure. Firmware. Driver. Inactivity Timeout Delimiter Force Transmit Packet Length Connection Control. TCP Alive Check Timeout Max. Connection Ignore Jammed IP Allow Driver Control

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NPort Advanced Functions - Driver

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  1. NPort Advanced Functions- Driver Moxa Connectivity 2012-08

  2. Advanced Functions – Overview • Secure Firmware Driver • Inactivity Timeout • Delimiter • Force Transmit • Packet Length • Connection Control • TCP Alive Check Timeout • Max. Connection • Ignore Jammed IP • Allow Driver Control • Command by Command • Authentication • Fast Flush • TX Mode • Auto Network Re-connection • Return Error If Network Is • Unavailable • Always Accept Open Requests • COM Grouping (NPort 5000) Serial Ethernet

  3. Advanced Functions – Driver

  4. Fast Flush Serial Ethernet

  5. Fast Flush – Introduction Q : What is Fast Flush? When do I need to enable this function? Where can this function be used? Tips: When your program uses the PurgeComm function call, Fast Flush will avoid forcing the driver to query NPort firmware continuously when in Real Com mode

  6. Fast Flush – Introduction • What is PurgeComm? • Before working with a port, we recommend clearing the buffers; sometimes there's also aneed to clear the bufferswhen working with ports. The PurgeComm function can be used for this purpose. This function can alsostop the read and write operations • What is Fast Flush? • Fast Flushis effective withPurgeCommfunction to directly flush thelocal bufferrather than queryingNPort firmwarecontinuously. • If you don’t use this function,it would take more time(about several hundred milliseconds) compared to native COM ports, especially when network traffic is very heavy.

  7. A portmon (Port Monitor) is a 3rd party freeware utility and GUI/device driver combination that monitors and displays all serial port activity on a system.http://www.sysinternals.com/ntw2k/freeware/portmon.shtml Fast Flush – PurgeComm Introduction • You must make sure that your application program uses Win32 PurgeComm functions (IOCTL_SERIAL_PURGE) for NPort Serial-to-Ethernet communication. • You can use capture logs from the *Port Monitor utility to determine if PurgeComm functions exist.

  8. < 10 ms AP PurgeComm Firmware Driver Flush firmware buffer Flush driver buffer >100 ms Fast Flush Enable <10 ms Fast Flush Disable > 100 ms Fast Flush – How does It Work? If Fast Flush isDISABLED……. It takes about >100 ms for PurgeComm AP 1. PurgeComm( ) But if Fast Flush is ENABLED……. Driver 2. Flush driver buffer It takes less than <10 ms for PurgeComm 4. Return “success” Firmware 3. Flush firmware buffer

  9. Fast Flush – Where to Find It? Apply Change to activate this optional setting Apply Change to activate this optional setting NPort 5000 NPort 6000

  10. TX Mode Serial Ethernet

  11. TX Mode – Introduction Q : What is Hi-Performance and Classical in TX Mode? Where can this function be used? Tips: TX mode in RealCom Mode is available for better data performance and reliability

  12. TX Mode – What is It?

  13. TX Mode – Where to Find It? NPort 6000 NPort 5000

  14. Auto Network Re-connection Serial Ethernet

  15. Auto Network Re-connection – Introduction Q : What is Auto Network Re-connection? Where can this function be used? Tips: When NPort does not respond to background “check alive” packets, the driver will repeatedly attempt to re- establish the TCP connection. The customer’s software doesn’t have to close the port then re-open it.

  16. 3. Check Alive 2. Crash or network is broken 4. No Response 5. Try to Re-connect Auto Network Re-connection – How does It Work? Host 1. Establish Connection Ethernet RealCOM mode

  17. Auto Network Re-connection – Where to Find It?

  18. Serial Return Error If Network Is Unavailable Ethernet

  19. Return Error If Network Is Unavailable – Introduction Q : What is Return Error If Network Is Unavailable? Tips: If the driver cannot establish the connection to NPort, calling the Win32 Comm function will result in the error return code “STATUS_NETWORK_UNREACHABLE”

  20. 3. 3. Call Win32 Comm 5. 2. Crash or network is broken 4. No Response 5. Return STATUS_NETWORK_UNREACHABLE Return Error If Network Is Unavailable – How does It Work? AP Host 1. Establish Connection Driver Ethernet RealCOM mode

  21. Return Error If Network Is Unavailable – How does It Work? • When the driver cannot establish the connection to NPort, it will return 0xC000023C which means the network is unreachable.

  22. Return Error If Network Is Unavailable – Where to Find it?

  23. Serial Always Accept Open Requests Ethernet

  24. Always Accept Open Requests– Introduction Q : What is Always Accept Open Requests? Where can this function be used? Tips: Even the driver cannot establish the connection to NPort, user's software still can open the mapped COM port just like a onboard COM port.

  25. 2. 3. 1. Crash or network is broken 3. Open COM port OK. Always Accept Open Requests – How does It Work? AP Host 4. Try Establish Connection Driver Ethernet RealCOM mode

  26. Always Accept Open Requests– Where to Find it?

  27. Always Accept Open Requests– Advanced Options • Put writing data in queue if network connection lost • Opened the COM port when NPort is offline • Start writing data to COM port • Stored the data • Send data to NPort while connects to it • Drop writing data if network connection lost • Opened the COM port when NPort is offline • Start writing data to COM port • Dropped the data

  28. Serial COM Grouping Supported Models: NPort 5000 / 5000A Series NPort IA5000 / IA5000A Series Ethernet

  29. COM Grouping– Introduction Q : What is COM Grouping? Where can this function be used? Tips: Designed to simulate the serial RS-485 multi-drop behavior over an Ethernet network.

  30. COM Grouping– How does It Work? COM 4 Ethernet COM 4 Confidential

  31. How to Configure COM Grouping? • Creating a COM Group • Adding a Port to a COM Group • Removing a Port from a COM Group • Deleting a COM Group • Modify Ports in a COM Group • Driver Support List: Confidential

  32. 1 2 Creating a COM Group (Step 1-3)Step1: Select group members Confidential

  33. Step2: Group selected ports together 3 4 5 Confidential

  34. Step3: Apply changes 6 Confidential

  35. Adding a Port to a COM Group (Step 1-4)Step1: Select member 1 2 Confidential

  36. 3 4 5 Step2: Grouping Confidential

  37. Step3: Confirming 6 Confidential

  38. Step4: Apply changes 7 Confidential

  39. Removing a Port from a COM Group (Step 1-3)Step1: Select port 1 2 Confidential

  40. Step2: Change to a unused COM number 3 4 Confidential

  41. Step3: Apply changes 5 Confidential

  42. Deleting a COM Group (Step 1-3)Step1: Select COM Group 1 2 Confidential

  43. 3 4 5 Step2: Change COM number Confidential

  44. Step3: Apply changes 6 Confidential

  45. Modify Ports in a COM Group • Changing the COM Number of a COM Group • Changing Read/Write/Signal Status Permission • Changing Advanced Settings of the COM Group

  46. Modify Ports in a COM Group-Changing the COM Number of a COM Group Step1: Select target COM Group 1 2 Confidential

  47. Step2: Select target COM number 3 4 5 Confidential

  48. Step3: Apply changes 6 Confidential

  49. Modify Ports in a COM Group-Change Read/Write/Signal Status PermissionStep1: Select any COM port of target COM Group 1 2 Confidential

  50. 5 3 4 Step2: Enable the COM Group settings page Confidential

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