西门子 STEP5故障检测与分析.doc

STEP5 故障检测 ******** 控制位 Control bits (按test--Output PLC info--ISTACK进入) 控制位主要用来检查硬件和系统软件的情况 系统字 位- 7 6 5 4 3 2 1 0 RS5 EA0A NB PBSSCH BSTSCH SCHTAE ADRBAU SPABBR NAUAS QUITT EA0B NB NB NB REMAN NB NB NB NB RS6 EA0C STOZUS STOANZ NEUSTA NB BATPUF NB BARB BARBEND EA0D NB UAFEHL MAFEHL E0VH NB AF NB NB RS7 EA0E ASPNEP ASPNRA KOPFNI PROEND ASPNEEP PADRFE ASPLUE RAMADFE EA0F KEINAS SYNFEH NINEU NB NB NB SUMF URLAD RS5 EA0A.6 PBSSCH : Is not used 此位不用 5 BSTSCH : Block shift requested 4 SCHTAE : Block shift active (COMPRESS) 3 ADRBAU : Address list set up OK 地址表设置好 2 SPABBR : Function COMPRESS MEMORY CONTENTS was abandoned 1 NAUAS : Power failure in central controller 电源故障 0 QUITT : Is not used 此位不用 EA0B.4 REMAN : 0=all TIMERS/COUNTERS/FLAGS deleted,1=only 2nd half T/C/F 0--重新启动时清所有的 T C F (CPU模板开关在NR位置) 1--重新启动时清非保持 T C F (CPU模板开关在RE位置) RS6 EA0C.7 STOZUS : Stop mode (external request) 外部请求停止 6 STOANZ : Stop bit (internal request) 内部请求停止 5 NEUSTA : Cold restart of the prog. controller PLC处于冷起动 3 BATPUF : Back-up battery for RAM o.k 电池好 1 BARB : Program test active 程序检查在活动 0 BARBEND: Stop mode following program test (cold restart necessary) 程序检查已结束, 需要冷启动 EA0D.6 UAFEHL : Incorrect interrupt code 5 MAFEHL : Entry exists in machine error word 4 E0VH : Input byte(s) for interrupt servicing exists 2 AF : Ints. enabled 允许中断 RS7 EA0E.7 ASPNEP : User memory is an EPROM 用户存储器子模板是 EPROM 6 ASPNRA : User memory is a RAM 用户存储器子模板是 RAM 5 KOPFNI : Block type was not recognized setting up address list 块头不能解释