Functions for SIMATIC S7-300 and S7-400 Acyclic ... - Jonweb FA

User ManualFor connection to the S7 DP master, a 9-way subminiature D connector is required (eg, SINEC L2 busconnector SIEMENS 6ES7972-0BA10-0XA0).Switch position = OffTerminating resistor disconnectedOffB A B AB = RS485P = pin 3A = RS485N = pin 8The cable shield (12mm)must be bare and contactthe metal guideBus cable from Bus cable toone nodethe next nodeBus interface on MASTERDRIVES with CBP9-way subminiature D connector X448 (use SINEC L2 bus connector as for SIMATIC S7, see above)X448Assignment123 B line, receive/transmit data P45678 A line, receive/transmit data N9Terminate the bus (only necessary if the drive is the first or last node):Via switch in SINEC L2 bus connector.6.2 Parameterization of the DP interfaceThe DP interface is parameterized during hardware configuration in STEP7. Before configuring the hardwareyou must install the DVA_S7 object manager for drives as an add-on to STEP 7. Otherwise DPV1communication is not possible!When you select a CPU with integrated DP interface from the hardware catalog of STEP 7, a PROFIBUS-DPsystem is provided in the hardware configuration. Once the parameters of the master (eg, baud rate) havebeen set, the slaves must be selected from the hardware catalog and placed in the PROFIBUS line(PROFIBUS-DPà MASTERDRIVES CBP à Vector Control CU2)Only the station number has to be parameterized for the slaves. It does not matter which PPO type is used forDPV1 communication.The DP system is now parameterized for the program example and the data for the hardware configuration canbe loaded in the CPU.6.3 PLC programThe example program from library path EXAMPLE300+400 can be loaded directly into the CPU memory.© Siemens AG 1998 All Rights Reserved SIMATIC S7 PROFIBUS-DP Functions18 E20125-C0011-S302-A2-7600