siemens存儲卡的選擇(編輯修改稿)
2025-06-23 22:09 本頁面
【文章內(nèi)容簡介】 position. The STOPLED now flashes during formatting. If the MMC cannot be formatted as described above, then the MMC is defective. NOTE:It is only possible to format the MMC if there is data located on the MMC that is invalid for the CPU. Otherwise the MMC is only initialized through the steps described. More information on the MMC is available in Entry ID: 8861901 返 回QUESTION 5 :插入MMC卡的S7300 PLC不能正常調(diào)用SFC54程序塊？Why does the SFC 54 RD_DPARM not work with the new S7300 CPU with MMC? ANSWER: 。In the new S7300 CPUs with micro Memory Card, SFC 54 RD_DPRARM for reading out a data record of a chosen block of the system data configured with STEP 7 has been replaced by SFC 102 RD_DPARA. SFC 102 RD_DPARA, in contrast to the old SFC 54 RD_DPARM is an asynchronously executed system function. This means that the processing is extended over various SFC calls. Blocks containing SFC 54 RD_DPARM can not be loaded to a new S7300 CPU with MMC. Therefore, please replace the call fo the SFC 54 RD_DPARM by the call of the SFC 102 RD_DPARA and adjust your programming logic to the asynchronous behaviour of the SFC 102 RD_DPARA an. Below, you will find a parison of the two system functions:SFC 54 RD_DPARMSFC 102 RD_DPARAObservationsInputs REQFunction will be executed only with REQ=1。 new for SFC 102IOIDParameter has been dropped for SFC 102。 see LADDRLADDRLADDRSFC 54: any block address, specification of the E resp. A address range over IOID ((B1654=Peripherie Eingang。 B1655= peripherial output) SFC 102: any block address。 Specification of the E resp. A address range over bit 15 of LADDR (most siginficant bit) Bit15=0 peripherial input Bit15=1 peripherial outputRECNUMRECNUMuse identicallyOutput RET_VALRET_VALuse identically。 however, there are additional error numbers for SFC 102 at disposition.BUSYBUSY=1。 the order has not been finished so far, there are no results at dispositionRECORDRECORDuse identicallyTable 1: Comparison SFC 54 and SFC 102 返 回QUESTION 6 : 采用MMC卡的S7300和C7613，635系列CPU是如何完成數(shù)據(jù)保持功能的？How does the remanence function of the S7300 CPUs and C7613 and C7635 pact devices work with Micro Memory Card? ANSWER:The remanence characteristics described below affect the S7300 pact CPUs, S7300 modular CPUs and the C7613 and C7635 pact devices with MMC. We describe the remanence characteristics after changes in operating mode in terms of data blocks, times, counters and markers. Data blocks: CPU STOP/RUN or Power OFF/ON1. Database contents of CPUs 31xC, 312, 314, 3152DP, C7613 and C7635 are always remanent.2. The DBs can be defined as remanent or nonremanent for the CPU 3172DP.Therefore, a setting in STEP 7（
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