SIEMENS 数据存储区 位存储器 DBZ PIQ DBY P y DBX o区 堆栈 数据块 SIMATIC S7 Date nformation and Training Center Fe: SSP1 12C2 Know ledge for AutomationDate: 2021/2/24 File: SSP1_12C.2 SIMATIC S7 Siemens AG 2000. All rights reserved. Information and Training Center Know ledge for Automation 位存储器 PIQ PII 数据存储区 数据块 DBx DBy DBz . . . I/O 区 L 堆栈