根据系统的控制要求

1、MCi 1I1根据系统的控制要求，经过化简后的各变量的逻辑表达式如下:M 0.0 = 1 0.0 1 0.1 1 0.2 1 0.5(4.1)M 0.1 = 1 0.3 I 0.1 I 0.2 I 0.6(4.2)M 0.3 = T33 I 0.1 I 0.2 I 0.5(4.3)M 0.4 = 1 0.4 I0.1(4.4)M 0.5 - C0 I 0.1 I 0.2 I 0.5(4.5)M 0.7 = T34 I 0.1 I 0.2 I 0.6(4.6)M 1.3 = G 1 0.1(4.7)Q0.0 二 M 0.0M 0.2 M 0.5 I 0.7(4.8)Q0.1 = M 0.1 M

2、0.6 I 0.7(4.9)Q.2 二 M 0.3M 0.4I0.7(4.10)Q0.3 二 M 0.7 M 1.3 I 0.7(4.11)Q0.4 i.5 I 0.6(4.12)Q0.5 i.5I 0.6(4.13)根据逻辑表达式设计的梯形图如图4.7所示Network 11據褻频IQ5MO.ONetwork 2变频器辻更上限妙泵变频10 3I03I0EIII * I1 *IQ1M0.1Network 5 变濒器达刘上限,2咏变频10.3M1.1C0CUCTURPVNetwork 6时问到,1咏工频Network 7变频器达到下PR/I喷停止10.1Network 8变频器达到下限.1煤停止

3、10.4M1.2C1C n12 IH LN寸切矽乙伽d腹系卫fit踞必陆SLCCLW屮sW圭UN溯J-便諛歆蛍谿媒注】屮OMMNsujOlidN01NI(LLW TOC o 1-5 h z IISOW违査紂T佞釆论址器蟒更 21屮OMQN001 /11 /11 ISOI301SOH也君电8T呦丁匱釆y程絃血菟II屮omqn(190HT( 1101I 9 Oh1 f 11 /111 190120103創劉乙潮丁底車疋量豁觀至01屮omRn()T / 1rton1-1 / 11 1 111 190W101G0I20103够並麴L&n底*卫呈豁蟒並 6屮OMQNNetwork IEM0.5Netwo

4、rk 17 不颛骷诙到匕限一2箱吏頻N0.1MU.&IU.7Qti.l TOC o 1-5 h z I1 I1 ，IC 3Nl ctwork 1 U时间到祎泵工颗M0.3MD.410.7Q0.2I1 ，I1 * IC JNetwork IlS时冋爭1-盘制潮:工颛M0.7ID. 70.3Network 20 仲希丄2：亟妙0E E动麻用杀 井护警IO.BQCI 4I n10.500.5图4.7 主程序O M0.5Network 4 /变频器达到上限,2#泵变频附录语句表Network 1 / 1# 泵变频LD 10.0O M0.0AN I0.2AN I0.5AN I0.1=M0.0Networ

5、k 2 /变频器达到上限,2#泵变频LDI0.3OM0.1ANI0.2ANI0.6ANI0.1=M0.1Network 3 /变频器达到上限,2#泵变频LDI0.3OM0.2ANI0.2ANI0.6ANI0.1=M0.2LD M0.2TON T33, +200Network 5 /变频器达到上限,2#泵变频LDI0.3LDM1.1CTUC0, +2Network 6 /时间到,1#泵工频LDT33OM0.3ANI0.2ANI0.5ANI0.1=M0.3Network 7 /变频器达到下限,1#泵停止LDI0.4OM0.4ANI0.1=M0.4Network 8 /变频器达到下限,1#泵停止LD

6、I0.4LDM1.2CTUC1, +2Network 9 /变频器再次达到上限,1#泵变频LDC0AN I0.1AN 10.2ANI0.5ANI0.1M0.5Network 10 /变频器再次达到上限,2#泵停止LDC0OM0.6ANI0.2ANI0.5ANI0.1M0.6Network 11 /变频器再次达到上限,启动定时LDM0.5ANI0.2ANI0.5TON T34, +200Network 12 /变频器再次达到上限,1#泵变频LDM0.5=M1.1Network 13 /时间到，2#泵工频LDT34OM0.7ANI0.2ANI0.6AN I0.7=M0.7Network 14 /变频器再次达到下限,2#泵停止LD C1O M1.3AN I0.1=M1.3Network 15 /变频器再次达到下限,2#泵停止LD M1.2=M1.2Network 16 / 1# 泵变频LD M0.0AN M0.2O M0.5AN I0.7=Q0.0Network 17 /变频器达到上限,2#泵变频LD M0.1AN M0.6AN I0.7=Q0.1Network 18 / 时间到,1#泵工频LD M0.3AN M