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7/26/2009 10:06 AM | |
Joined: 7/2/2008 Last visit: 9/30/2024 Posts: 928 Rating: (308) |
Hello Roy Samia, Are you trying to reach secondary values of HART devices or just head values? By secondary value I mean electronics temperature for example while the head value is the analog transmitted value (4-20mA). So, if you just want to read the head value you can use ET200iSP analog modules as any other module.Assign symbols to addresses of channels you have. For cyclic operation, you may put your modules in certain process image partition (PIP)and assign this partition to any cyclic interrupt (OB3X) then values will be updated cyclically (Time based). For secondary variables, you can configure them in hardware configuration. Go with steps 1,2& 3 in this FAQ and then you will have secondary values in your process image. These secondary variables areIEEE tags. Please look at pages 318&319 (13.12.3 Assigning the channel and IEEE tag)in ET200iSP manual. For HART communication you can use SFC59 / SFC58 to read and write HARTdata records. Please look at pages 309 & 310 (13.10.7 HART data records)in ET200iSP manual. Best regards. H-H |
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7/26/2009 6:44 PM | |
Joined: 7/2/2008 Last visit: 9/30/2024 Posts: 928 Rating: (308) |
Hello Roy Samia, Mutli-drop is not available for ET200iSP. Please look at the attachment. Each channel should be connected to single HART device (with address 0). Alsoit'sstated in this FAQ that ET00M and ET200is (Predecessor of ET200iSP) only support monodrop mode. Best regards. H-H AttachmentET200iSP Multidrop.pdf (386 Downloads) |
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