SDCS-IOB-23
咨询***：18506919598
对时钟脉冲信号，要求系统的扫描时间小于相应的应用时钟脉冲周期，否则，将无法得到时钟的正确信号。例如，0.02秒脉冲信号的置位时间是10ms，扫描时间应小于10ms才能采集到0.02秒的脉冲信号。
25503：指令执行错误标志（ER）。当执行错误指令时，该位被置l。
25504：进位标志（CY）。当运算结果有进位时，该位被置l。用CLC指令可使其置0。
25505：大于标志（GR）。在比较运算中，第二个操作数大于***个操作数时，该位被置l。
25506：等于标志（EQ）。在比较运算中，第二个操作数等于***个操作数时，该位被置l。
25507：小于标志（LE）。在比较运算中，第二个操作数小于***个操作数时
暂存继电器区 ( Temporary Relay ) TR区
特性见表11-3
保持继电器区 ( Holding Relay ) HR区
特性见表11-3、6
辅助存贮继电器区 ( Auxiliary Relay ) AR区
特性见表11-3、6
链接继电器区 ( Link Relay ) LR区
特性见表11-3、6
定时/计时继电器区 ( Timer & Counter ) TC区
特性见表11-3、7
数据存贮区 ( Data Memory ) DM区
特性见表11-3、7
表11-6 C200H PLC通道号、寻址范围及操作数范围
|
区名 |
I/O继电器 |
IR |
SR |
HR |
AR |
LR |
|
|
通道号 |
000-029 |
030-250 |
251-255 |
HR00-HR99 |
R AR23-AR27 AR00-AR06 |
R/W AR07-AR22 |
LR00-LR63 |
|
位寻址范围 |
00000-02915 |
03000-02515 |
25100-25515 |
HR0000-HR9915 |
R AR0000-AR0615 AR2300-AR2715 |
R/W AR0700-AR2215 |
LR0000-R6315 |
表11-7 不可位寻址的对象
|
TC |
DM |
# |
|
|
TC000-TC511 |
R/W DM0000-DM0999 |
R DM1000-DM1999 |
+ 0000-9999 = 0000-FFFF |
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