Parameter Declaration Data type Memory block DescriptionRACK OUTPUT WORD I, Q, M, D, L See AREA belowSLOT OUTPUT WORD I, Q, M, D, LSUBADDR OUTPUT WORD I, Q, M, D, LAREA specifies how the output parameters RACK, SLOT and SUBADDR must be inter-preted. These dependencies are depicted below.Value ofAREASystem Significance of RACK, SLOT and SUBADDR0 - reserved1 Siemens S7-300 RACK: Rack numberSLOT: Slot numberSUBADDR: Address offset to base address2 DecentralizedperipheryRACK (Low Byte): Station numberRACK (High Byte): DP master system IDSLOT: Slot number at stationSUBADDR: Address offset to base address3 ... 6 - reservedThe return value contains an error code if an error is detected when the function is beingprocessed.Value Description0000h No error has occurred.8090h The specified logical address is not valid or an illegal value exists for parameter IOID.14.1.38 SFC 50 - RD_LGADR - Read all logical addresses of a moduleThe SFC 50 RD_LGADR (read module logical addresses) determines all the stipulatedlogical addresses of a module starting with a logical address of the respective module.You must have previously configured the relationship between the logical addresses andthe modules. The logical addresses that were determined are entered in ascending orderinto the field PEADDR or into field PAADDR.AREARET_VAL (Return value)DescriptionVIPA SPEED7Integrated StandardSystem Functions > SFC 50 - RD_LGADR - Read all logical addresses of a moduleHB00 | OPL_SP7 | Operation list | en | 18-30684
