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WIOC/Field Link

Hello All,

I am an engineering coop helping out with installation of a Delta V system.  Ive come here to se if I could get a little information from the pros.  I am designing a small WIOC installation and have a question about the redundant field link antennas.  The question has to do with both placement of the antennas and if both antennas are working with the network at the same time.  I will be placing the antennas at the top of a boiler building and was wondering if I could place the antenna on opposite ends of the roof to expand the network.  I wasnt sure if the redundant WIOC and antenna were "on call" or an active part of the network at all times.  I appreciate any help that I can get.

 

Thank You

Ryan Betts

Ryan Betts
  • Rachelle McWright

    Welcome to the community, Ryan. I am going to share your post in the DeltaV group as well. Cheers!

    Best Regards,

    Rachelle McWright: Business Development Manager, Dynamic Simulation: U.S. Gulf Coast

  • Ben Bishop
    Hello Ryan! The redundant field links are not used to extend the network. The rule of thumb for the placement of the field links is no closer than 3 ft, but no farther than 10 ft apart. Only one WIOC is active at any given time and only one field link is active at any given time. The intent is that the field devices can follow the same route to the redundant antenna, so the switchover doesn't interrupt the flow of data.
  • Jonas Berge

    In reply to Ben Bishop:

    I agree with Ben. Like the 1420 gateway, they should be mounted at the same height and be spaced between 1m to 3m horizontally. This is to ensure that they provide identical coverage for the wireless field network and to help eliminate coverage gap in the event of a switch over. Only one of them is actively transmitting at any one time, while the other is passive.

  • Rachelle McWright

    In reply to Ben Bishop:

    Thanks for your expertise, Ben & Jonas.

    Best Regards,

    Rachelle McWright: Business Development Manager, Dynamic Simulation: U.S. Gulf Coast

  • Craig Abbott
    Ryan,
    For a redundant 1420 gateway, the recommended setup is to have the Antennae within 1 to 3 feet from each other. This ensures that on a change over, the WirelessHART networks are identical (as far a practically possible) which makes for a smooth transfer of control. If the antennae are placed at opposite ends of a building then Network reorganisation is likely to be required and there is a potential for a few missed updates.

    I am confident that the same applies for WIOCs.

    Regards
    Craig

    On 8 Aug 2014, at 6:15 am, "Ryan Betts" <bounce-RBetts@community.emerson.com> wrote:

    Hello All,

    I am an engineering coop helping out with installation of a Delta V system.  Ive come here to se if I could get a little information from the pros.  I am designing a small WIOC installation and have a question about the redundant field link antennas.  The question has to do with both placement of the antennas and if both antennas are working with the network at the same time.  I will be placing the antennas at the top of a boiler building and was wondering if I could place the antenna on opposite ends of the roof to expand the network.  I wasnt sure if the redundant WIOC and antenna were "on call" or an active part of the network at all times.  I appreciate any help that I can get.

     

    Thank You

    Ryan Betts

    Craig Abbott - Wireless Specialist (South Eastern Australia)

  • Scott Pries
    I believe it is 1-3 meters…
     
    From: Craig Abbott [mailto:bounce-Craig_Abbott@community.emerson.com]
    Sent: Thursday, August 07, 2014 4:05 PM
    To: Wireless@community.emerson.com
    Subject: Re: [EE365 Wireless Track] WIOC/Field Link
     
    Ryan,
    For a redundant 1420 gateway, the recommended setup is to have the Antennae within 1 to 3 feet from each other. This ensures that on a change over, the WirelessHART networks are identical (as far a practically possible) which makes for a smooth transfer of control. If the antennae are placed at opposite ends of a building then Network reorganisation is likely to be required and there is a potential for a few missed updates.
     
    I am confident that the same applies for WIOCs.

    Regards
    Craig

    On 8 Aug 2014, at 6:15 am, "Ryan Betts" <bounce-RBetts@community.emerson.com> wrote:

    Hello All,

    I am an engineering coop helping out with installation of a Delta V system.  Ive come here to se if I could get a little information from the pros.  I am designing a small WIOC installation and have a question about the redundant field link antennas.  The question has to do with both placement of the antennas and if both antennas are working with the network at the same time.  I will be placing the antennas at the top of a boiler building and was wondering if I could place the antenna on opposite ends of the roof to expand the network.  I wasnt sure if the redundant WIOC and antenna were "on call" or an active part of the network at all times.  I appreciate any help that I can get.

     

    Thank You

    Ryan Betts

  • Rachelle McWright

    In reply to Scott Pries:

    Super problem-solving & collaboration going on in Wireless this week! Thanks for adding to the discussion, Craig and Scott. :)

    Best Regards,

    Rachelle McWright: Business Development Manager, Dynamic Simulation: U.S. Gulf Coast

  • Dan Carlson
    It is 1-3 meters (~6 to ~10 feet). You want the remote antennas close enough the WirelessHART network “sees” them as in the same location yet separated enough such that both antennas are not susceptible to the same environmental change that might cause one of the antennas to fail.
     
    Dan Carlson | Solution Architect
    Emerson Process Management | 6005 Rogerdale Road | Houston | Texas | 77072| USA
     
         
     
    Smart Wireless - enabling our customers to enhance employee safety, reduce environmental impact, and improve efficiency through the advantages of wireless technology
     
    The information contained in this email is confidential or protected by law.  If you are not the intended recipient, please contact the sender and delete this message.  Any unauthorized copying of this message or unauthorized distribution of the information contained herein is prohibited.
     
    From: Scott Pries [mailto:bounce-Scott_Pries@community.emerson.com]
    Sent: Thursday, August 07, 2014 4:10 PM
    To: Wireless@community.emerson.com
    Subject: RE: [EE365 Wireless Track] WIOC/Field Link
     
    I believe it is 1-3 meters…
     
    [collapse]
    From: Craig Abbott [mailto:bounce-Craig_Abbott@community.emerson.com]
    Sent: Thursday, August 07, 2014 4:05 PM
    To: Wireless@community.emerson.com
    Subject: Re: [EE365 Wireless Track] WIOC/Field Link
     
    Ryan,
    For a redundant 1420 gateway, the recommended setup is to have the Antennae within 1 to 3 feet from each other. This ensures that on a change over, the WirelessHART networks are identical (as far a practically possible) which makes for a smooth transfer of control. If the antennae are placed at opposite ends of a building then Network reorganisation is likely to be required and there is a potential for a few missed updates.
     
    I am confident that the same applies for WIOCs.

    Regards
    Craig

    On 8 Aug 2014, at 6:15 am, "Ryan Betts" <bounce-RBetts@community.emerson.com> wrote:

    Hello All,

    I am an engineering coop helping out with installation of a Delta V system.  Ive come here to se if I could get a little information from the pros.  I am designing a small WIOC installation and have a question about the redundant field link antennas.  The question has to do with both placement of the antennas and if both antennas are working with the network at the same time.  I will be placing the antennas at the top of a boiler building and was wondering if I could place the antenna on opposite ends of the roof to expand the network.  I wasnt sure if the redundant WIOC and antenna were "on call" or an active part of the network at all times.  I appreciate any help that I can get.

     

    Thank You

    Ryan Betts

    [/collapse]
  • Dan Carlson
    Correction to my previous post, the correct value is 3 ft to 9 ft (1m to 3m) horizontally. It’s important that the separation is horizontal and not vertical. Both antennas, whether integrated or remote should be in the same horizontal plane.
     
    Dan Carlson | Solution Architect
    Emerson Process Management | 6005 Rogerdale Road | Houston | Texas | 77072| USA
     
         
     
    Smart Wireless - enabling our customers to enhance employee safety, reduce environmental impact, and improve efficiency through the advantages of wireless technology
     
    The information contained in this email is confidential or protected by law.  If you are not the intended recipient, please contact the sender and delete this message.  Any unauthorized copying of this message or unauthorized distribution of the information contained herein is prohibited.
     
    From: Dan Carlson [mailto:bounce-Dan_Carlson@community.emerson.com]
    Sent: Thursday, August 07, 2014 8:03 PM
    To: Wireless@community.emerson.com
    Subject: RE: [EE365 Wireless Track] WIOC/Field Link
     
    It is 1-3 meters (~6 to ~10 feet). You want the remote antennas close enough the WirelessHART network “sees” them as in the same location yet separated enough such that both antennas are not susceptible to the same environmental change that might cause one of the antennas to fail.
     
    Dan Carlson | Solution Architect
    Emerson Process Management | 6005 Rogerdale Road | Houston | Texas | 77072| USA
     
         
     
    Smart Wireless - enabling our customers to enhance employee safety, reduce environmental impact, and improve efficiency through the advantages of wireless technology
     
    The information contained in this email is confidential or protected by law.  If you are not the intended recipient, please contact the sender and delete this message.  Any unauthorized copying of this message or unauthorized distribution of the information contained herein is prohibited.
     
    [collapse]
    From: Scott Pries [mailto:bounce-Scott_Pries@community.emerson.com]
    Sent: Thursday, August 07, 2014 4:10 PM
    To: Wireless@community.emerson.com
    Subject: RE: [EE365 Wireless Track] WIOC/Field Link
     
    I believe it is 1-3 meters…
     
    [collapse]
    From: Craig Abbott [mailto:bounce-Craig_Abbott@community.emerson.com]
    Sent: Thursday, August 07, 2014 4:05 PM
    To: Wireless@community.emerson.com
    Subject: Re: [EE365 Wireless Track] WIOC/Field Link
     
    Ryan,
    For a redundant 1420 gateway, the recommended setup is to have the Antennae within 1 to 3 feet from each other. This ensures that on a change over, the WirelessHART networks are identical (as far a practically possible) which makes for a smooth transfer of control. If the antennae are placed at opposite ends of a building then Network reorganisation is likely to be required and there is a potential for a few missed updates.
     
    I am confident that the same applies for WIOCs.

    Regards
    Craig

    On 8 Aug 2014, at 6:15 am, "Ryan Betts" <bounce-RBetts@community.emerson.com> wrote:

    Hello All,

    I am an engineering coop helping out with installation of a Delta V system.  Ive come here to se if I could get a little information from the pros.  I am designing a small WIOC installation and have a question about the redundant field link antennas.  The question has to do with both placement of the antennas and if both antennas are working with the network at the same time.  I will be placing the antennas at the top of a boiler building and was wondering if I could place the antenna on opposite ends of the roof to expand the network.  I wasnt sure if the redundant WIOC and antenna were "on call" or an active part of the network at all times.  I appreciate any help that I can get.

     

    Thank You

    Ryan Betts

    [/collapse][/collapse]

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