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| 9/27/2014 3:57 AM | |
Joined: 9/27/2014 Last visit: 6/21/2024 Posts: 27 Rating:
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Hi Masters, I am planning to connect (wireless) a PLC from crane and I want to have a station in the ground. I am thinking of SCALANCE 788-1PRO. Is this ok? also, please help in choosing what is the best NIC card for my tower type desktop PC (where I will configure my WinCC) is there a CP for this? By the way, my PLC has a CP lean. Thanks and best regards, Mark Jones A. Ganar
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| 9/29/2014 8:38 AM | |
Joined: 3/20/2013 Last visit: 4/2/2025 Posts: 676 Rating:
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hi mark, just to summon it up: you have a station on the ground where you access your network infrastructure. you also have a tower where you put a PLC in it AND a PC station? For the communication you need one Access Point and one Wireless Client. The SCALANCE 788-1PRO is an old device. You better get (for using 11n, ...) a newer model. One question is to be cleared: Is it PNIO data transfer which you want to have between your ground station and the crane? or is it less time critical? For time critical/deterministic data transfer there is in Siemens SCALANCE devices the feature iPCF (perhaps have for some explanations a look here: link , chapter 3.3). You can enable this feature via KeyPlug in most of the Scalances. For your application I also want to know if you need a special protection class or not? |
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Best Regards, |
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| 9/29/2014 8:43 AM | |
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Joined: 3/20/2013 Last visit: 4/2/2025 Posts: 676 Rating:
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one option is the following one for outdoor use: Access Point: 6GK5786-1FC00-0AA0 SCALANCE W786-1 RJ45 Client module: 6GK5748-1FC00-0AA0 SCALANCE W748-1 RJ45
as I said : "one option" the AP is also available with internal antennas, if you do not need IP65 you can of course choose other models. Those two devices are capable of iPCF (together with a KeyPlug). |
Last edited by: Fafner at: 9/29/2014 8:43 AMBest Regards, |
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| 9/30/2014 6:41 AM | |
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Joined: 9/27/2014 Last visit: 6/21/2024 Posts: 27 Rating:
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Hi Fafner, For the installation of the AP and client. Does it require to have a line of sight? also the range? Because we will install the AP on the Control Room of the crane which is est. 25m height and the client is located 50m from the crane. Yes, the connection is PNIO. Thanks, Mark12
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| 9/30/2014 8:10 AM | |
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Joined: 3/20/2013 Last visit: 4/2/2025 Posts: 676 Rating:
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Yes, a line of sight is recommended. And also more than only a line... have a look at "Fresnel-zone" For your application i would choose on the ground directional antennas and for the device on top a omnidirectional antenna. if you can manage a free line of sight the distance should be coverable. do you know about already present WLAN applications at your crane? Please note that you are not supposed to use a WLAN channel where already another WLAN is working. |
Last edited by: Fafner at: 9/30/2014 8:10 AMadded a "you" Best Regards, |
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| 9/30/2014 9:41 AM | |
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Joined: 9/27/2014 Last visit: 6/21/2024 Posts: 27 Rating:
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Hi Fafner, My PLC is located on the crane control room and I want to have a HMI on the ground only (no remote I/O's). Do I still need a client for the AP? or a simple wireless card for the PC will do? Do you know if there are wireless CP for a tower PC? Thanks, Mark12
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| 9/30/2014 10:35 AM | |
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Joined: 3/20/2013 Last visit: 4/2/2025 Posts: 676 Rating:
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So you have no PNIO communication but a S7 communication to the HMI? You can also work with a normal WLAN adapter. Disadvantages: - less reliable than AP-> client communication - no external antennas (i guess) - the AP at the PLC is just at the wrong place regarding your network (with WLAN you only have ONE participant per client behind an AP, that means you will get problems if you want to get access to the PLC from other devices than the PC; [there are proprietary protocols like layer2tunnel which allow to have more participiants behind the WLAN client]) in the SIemens Portfolio is not anymore a WLAN adapter for PCs. I think the best way is to get an WLAN AP at the side of your PC. And an WLAN Client at the side of you PLC. I guess you do not need iPCF. and you can have a look for the smaller clients like this one if they are well protected in the control room http://support.automation.siemens.com/WW/view/en/68852104 |
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Best Regards, |
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| 10/1/2014 1:21 AM | |
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Joined: 9/27/2014 Last visit: 6/21/2024 Posts: 27 Rating:
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Hi Fafner, I will still going to use the6GK5786-1FC00-0AA0SCALANCE W786-1 RJ45. I think this is better than using other. How many antennas do I need to achieve the widest range that these SCALANCE can have. Also, I'll ask for a favor? Can I have the part number for the antenna also? Thanks, Mark
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| 10/1/2014 8:26 AM | |
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Joined: 3/20/2013 Last visit: 4/2/2025 Posts: 676 Rating:
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Hi Mark, For the range directional antennas on the bottom would be very helpful: Here you go with a directional antenna (5GHz), to go from the PC up to the PLC: 6GK5793-8DN00-0AA6 (here you need 3 of this type, each for one antenna connection.. or at least 2 if you don't want to use 3 for full MIMO effect :) )
This is the cable you need from AP to antenna: 6XV1875-5CH10 SIMATIC NET CABLE N-CONNECT Here you go with an omnidirectional antenne for the top of the crane: 6GK5795-6MT00-0AA0 (you only need one antenna, because it has 3 pins) ah.. from the pin to the antenna you go from QMA -> R-SMA that means you need 2 cables (each multiplied with 3) of them: 6XV1875-5JH10 SIMATIC NET CABLE QMA / N-CONNECT 6XV1875-5CH10 SIMATIC NET CABLE N-CONNECT any clearing deleted? |
Last edited by: Fafner at: 10/1/2014 8:27 AMBest Regards, |
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| 10/2/2014 4:40 AM | |
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Joined: 9/27/2014 Last visit: 6/21/2024 Posts: 27 Rating:
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Hi Fafner, We are going to buy the items on the below (omni-directional). Thank you very much for your support. Regards, Mark
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