User Manual 08/2003 Edition

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4 4 Communications via PROFIBUS DP 02.99 02.00 4.3 Parameter area (PKW area) 4.3.2 Example: Reading parameters via PROFIBUS Example: Reading parameters via PROFIBUS What is programmed on the master side? 4-116 It at least one fault is present, the drive fault buffer (P947) should be read out and buffered on the master side. Assumptions for the slave: The drive has been completely commissioned, is connected to PROFIBUS DP and is ready. PROFIBUS node address = 12 Assumptions for the master: The DP master is a SIMATIC S7 (CPU: S7-315-2-DP) Hardware configuration – Node address = 12 – Part I address O address PKW 256 – 263 256 – 263 PZD 264 – 267 264 – 267 (not drawn in the example) If the input signal from the peripheral area (I/O area) I265.3 (ZSW1.3, fault present/no fault present) has a ”1” signal, then the following must be executed on the master side (refer to Fig.4-7): 1. Programming SFC14 and SFC15 The standard functions SFC14 ”Read slave data” and SFC15 ”write slave data” are required in order to consistently transfer more than 4 bytes. 2. Request parameter value – Write into the PKW output signals (AB 256 – 263) with AK = 1, PNU = 947, IND = 0, PWE = no significance 3. Read parameter value and save – Evaluate the PKW input signals (EB 256 – 263) – If AK = 1, PNU = 947, IND = 0 and PWE = xx ––> then O. K. ––> read P947 = xx and buffer – If AK = 7, ––> then not O. K. ––> evaluate the fault number in EW 262 (refer to Table 4-15) Siemens AG 2003 All rights reserved SIMODRIVE POSMO A User Manual (POS1) – 08.03 Edition
02.99 02.00 PG/PC PROFIBUS-DP DP slave POSMO A PKE MPI IND PWE1 PWE2 Input signals at the DP slave Siemens AG 2003 All rights reserved SIMODRIVE POSMO A User Manual (POS1) – 08.03 Edition PKW area (task) PAW 256 = 0001 0011 1011 0011 PAW 258 = 0000 0000 0000 0000 PAW 260 = 0000 0000 0000 0000 PAW 262 = 0000 0000 0000 0000 PKE IND PWE1 PWE2 PAW Peripheral output word PEW Peripheral input word PKE Parameter ID IND Sub–index, sub–parameter number, array index PWE Parameter value AK Task and response ID PNU Parameter number Fig. 4-7 Example: Reading parameters via PROFIBUS PKW area (response) PEW 256 = 0001 0011 1011 0011 PEW 258 = 0000 0000 0000 0000 PEW 260 = 0000 0000 0000 0000 PEW 262 = 0000 0001 0010 0000 4 Communications via PROFIBUS DP 4.3 Parameter area (PKW area) SIMATIC S7-300 (CPU: S7-315-2-DP) AK = 1, PNU = 947 Index = 0 Value (high) Value (low) Output signals at the DP slave AK = 1, PNU = 947 Index = 0 Value (high) Value (low) Bit 8 ––> Speed controller at its limit Bit 5 ––> Standstill monitoring Refer to Chapter 6.2 Note The SIMATIC S7 ”FB 11” block can be used to ”Read parameters via PROFIBUS”. ––> refer to Chapter 3.2.2 4-117 4
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7 7 Installation and Service 04.01
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A A Abbreviations 04.01 GSD HEX HW
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A A Abbreviations 04.01 STB STW SW
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C C Dimension Drawings 02.99 08.03
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D D EC Declaration of Conformity 08
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