7/18/2022 12:49 PM | |
Joined: 9/27/2006 Last visit: 5/23/2024 Posts: 12257 Rating: (2668)
|
Hello GREY; To my knowledge, when you purchase PA instrument the transmitter comes with all electronics already installed and configured, except for the Profibus PA address. You will also have access to the PA gsd file you need to insert it in a Profibus-DP network (with a DP-PA coupler) or a Profibus-PA network, using a DP-PA link and the GSD-Tool application file. Certain secondary parameters, such as the engineering value of a flowmeter (gpm, l/s...) or of s temperature sensor (Farenheit vs Celcius) can be parameterized with the help of the PDM software, once the PA network has been configured. For TIA Portal installations, I belieive you require a PDM Stand-alone license, either Single-point (1 tag), Basic (4 Tags) or 50/100 Tag packages. See the differences here: https://support.industry.siemens.com/cs/ca/en/view/109794369 All PA instruments communicate to the master with the same data structure, and will reserve 5 bytes in the master's configuration when you insert their gsd file: - the first 4 bytes represent the main variable of the instrument, the flow, the temperature..., as a floating-point value. This can be read as a REAL variable in the master's program. - the last byte is a status indicator, giving a minimal diagnostic of the instrument. The possible values of this diagnostic byte can be found in the PA instrument manual, and should be used for alarming in your program. The information provided comes from my personal experience working with Endress Hauser instruments mostly, but also occasionally with Vega level instruments and Krone products for flow. If you gave any doubts on the PA product you ate working with, I can only recommend you examine the manufacturer's documentation directly. Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 07/18/2022 17:04:24Last edited by: dchartier at: 07/19/2022 12:07:03 |
|
This contribution was helpful to2 thankful Users |
1/20/2023 3:02 PM | |
Joined: 9/27/2006 Last visit: 5/23/2024 Posts: 12257 Rating: (2668) |
Hello Grey; It seems it is not possibe to integrate PDM in Step 7 TIA Portal, as you can in Step 7 v5.x. But you do not have to. Purchasing a PDM stand-alone license should enable parallel running of PDM and Step 7 x1x. I have not done this installation myself, I must add, but I have used it with Rockwell and GE controllers as DP masters, connecting to a DP/PA link, to configure PA instruments in various projects. There is absolutely no reason a similar configuration with a s7-1500 Profibus master and a DP/PA link should not work. More details can be found in this discussion: The following video discusses the installantion nd use of PDM with a S7-1500, and provides thos introduction: "We take a look at how to use the S7 1500 PLC as a transparent connection to field devices. This video shows you how to use new features on SIMATIC PDM 9.1 to connect to field devices when using DSGW (Data Set Gateway). In this example we connect to a Siemens MultiRanger 200 HMI. We also take a look at the hardware required when PDM is used on a system that doesn't support DSGW routing." It might not give you the complete information you need but what details it shows seem very useful. However, the PDM Licenses and Configuration Limits manual shows this note: https://support.industry.siemens.com/cs/ca/en/view/109794371
The "SIMATIC PDM Routing" option is not included in the SIMATIC PDM standalone product package. Licensing for use of the S7 DSGW (data record gateway) for gateways from the plant bus (Ethernet) to field buses (PROFIBUS) takes place via TAG licenses. TAG licenses are booked depending on the quantity according to the following rules: • 10 TAG: per S7 DSGW with a PROFIBUS subnet • 20 TAG: per S7 DSGW with more than one PROFIBUS subnet • 10 TAG: per IE/PB link • 0 TAG: for Ethernet or PROFINET networks Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 01/20/2023 15:09:04Last edited by: dchartier at: 01/20/2023 15:10:43 |
|
Follow us on