8/21/2014 4:32 PM | |
Joined: 11/21/2007 Last visit: 9/25/2024 Posts: 2325 Rating: (308)
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Hello RaviS I think, I mustclarify a few issues here as I have not clearly understood your hardware selection. a) "SIPLUS_RIC" is a Software Library that can be used with SIMATIC Standard / SIPLUS hardware and must not be confused with "SIPLUS" Hardware Modules. b) While physical wiring of Modbus RTU and IEC-103 is quite similar, the communication protocols are poles apart. In Modbus, the slaves are polled by the master and only transmit when Polled by the master. However in IEC-103 the Relays ( IEDs ) can also transmit spontaneously.Accordingly the S7 program is also quite different. c) CP-342-1 Modbus card (4no,, 1 no. for 4 IEDs) with Modbus library I am not aware of a CP 342-1 for Modbus Communication. Also why are you ordering Modbus Library ( Do you want to communicate with the IEDs on Modbus instead of IEC-103 ) ? d)Modbus / IEC-103 is supported by CP341 ( ET200M ) or 1SI Modbus ( ET200S ).You need to order Modbus Library Separately for CP341. e) IEC-103 is alsosupported by CP341 ( ET200M ) or 1SI Modbus ( ET200S ). You need to order the SIPLUS RIC Library for IEC Separately for both options. f) for your configuration ( 24 IEDs on IEC-103 ) , I would suggest you to use CPU 315-2 PN/DP + 3 Nos. CP341 ( 8 Relays on each CP ) Hope this helps Cheers Navnag |
Last edited by: Navnag at: 8/25/2014 6:57 AMCPU Recommendation added There is no such thing as the last bug in a program |
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8/25/2014 7:19 AM | |||
Joined: 11/21/2007 Last visit: 9/25/2024 Posts: 2325 Rating: (308)
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Thanks Daniel Recently the SIPLUS_RIC CPU Bundles with CPUs are being discontinued. Now you can order Standard S7 CPUs and SIPLUS_RIC + MMC Bundles as per this Update : Delivery release: SIPLUS RIC V1.5 as Software-Library Hope this helps Cheers Navnag |
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There is no such thing as the last bug in a program |
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