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) 4.3.3 Example: Writing parameters via PROFIBUS Example: Parameters, writing via PROFIBUS What has to be programmed on the master side? 4-118 Dependent on a condition, a value of 786.5 mm should be written into the position in traversing block 4 (P81:4) via PROFIBUS. 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 condition to write the position is present in traversing block 4, then the following must be executed on the master side (refer to Fig. 4-8): 1. Write the parameter value (define task) – Write into the PKW output signals (AB 256 – 263) with AK = 8, PNU = 81, IND = 4, PWE = 7 865 000dec = 78 02 A8hex 2. Check the task – Evaluate the PKW input signals (EB 256 – 263) – If AK = 5, PNU = 81, IND = 4 and PWE = 7 865 000dec ––> then O. K. – 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 IND MPI PWE1 PWE2 Input signals at the DP slave PKE IND PWE1 PWE2 Siemens AG 2003 All rights reserved SIMODRIVE POSMO A User Manual (POS1) – 08.03 Edition PKW area (task) PAW 256 = 1000 0000 0101 0001 PAW 258 = 0000 0100 0000 0000 PAW 260 = 00 78hex (e.g.) PAW 262 = 02 A8hex (e.g.) Fig. 4-8 Example: Writing parameters via PROFIBUS PKW area (response) PEW 256 = 0101 0000 0101 0001 PEW 258 = 0000 0100 0000 0000 PEW 260 = 00 78hex (e.g.) PEW 262 = 02 A8 hex (e.g.) 4 Communications via PROFIBUS DP 4.3 Parameter area (PKW area) SIMATIC S7-300 (CPU: S7-315-2-DP) AK = 8, PNU = 81 Index = 4 Value (high) Value (low) Output signals at the DP slave AK = 5, PNU = 81 Index = 4 Value (high) Value (low) 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 Note The SIMATIC S7 ”FB 11” block can be used to ”write parameters via PROFIBUS”. ––> refer to Chapter 3.2.2 4-119 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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E E Index 08.03 Diagnostics LED, 1-
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