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控制功能
控制功能包括PID控制运算、前馈补偿控制运算、比值控制运算等,应根据控制要求确定。PLC主要用于顺序逻辑控制,因此,大多数场合常采用单回路或多回路控制器解决模拟量的控制,有时也采用**的智能输入输出单元完成所需的控制功能,提高PLC的处理速度和节省存储器容量。例如采用PID控制单元、高速计数器、带速度补偿的模拟单元、ASC码转换单元等。
(三)通信功能
大中型PLC系统应支持多种现场总线和标准通信协议(如TCP/IP),需要时应能与工厂管理网(TCP/IP)相连接。通信协议应符合ISO/IEEE通信标准,应是开放的通信网络。
PLC系统的通信接口应包括串行和并行通信接口(RS2232C/422A/423/485)、RIO通信口、工业以太网、常用DCS接口等;大中型PLC通信总线(含接口设备和电缆)应1:1冗余配置,通信总线应符合国际标准,通信距离应满足装置实际要求。
PLC系统的通信网络中,上级的网络通信速率应大于1Mbps,通信负荷不大于60%。PLC系统的通信网络主要形式有下列几种形式:1)PC为主站,多台同型号PLC为从站,组成简易PLC网络;2)1台PLC为主站,其他同型号PLC为从站,构成主从式PLC网络;3)PLC网络通过特定网络接口连接到大型DCS中作为DCS的子网;4)**PLC网络(各厂商的**PLC通信网络)。
为减轻通信任务,根据网络组成的实际需要,应选择具有不同通信功能的(如点对点、现场总线、工业以太网)通信处理器。
(四)编程功能
312A6077P001,312A6077P004,312A6089P001,312A6090P001,312A6090P002,312A6091P001,312A6091P002,312A6091P003,312A6091P004,313954-002 7913,313954-002 7713,
312A6046P003,312A6077P001,312A6077P004,312A6089P001,312A6090P001,312A6090P002,312A6091P001,312A6091P002,312A6091P003,312A6091P004,313954-002 7913,313954-002? 7713,313954-0027926,313965-009,313A3129P0001,314A5945P002 REV ,314A5945P002REV,314A5945P2
,315A2066P001,315A2618P010,315A2660P003,315A2739P011,315A4147P2,315A4147P8,315A4204P001,315A4459P0004,315A4459P2,315A4459P4,315A9332P001,315A9332P1,318A1093,318A9427P001,318A95422,318A9542-2,318A95423,318A9542-3,318A95425,318A9542-5
,318A95426,318A9542-6,318A9542P004,31320E,321308B,32271,323031205,323-03-1205,32382374P3,323A2354P1,323A2354P2,323A2354P3,323A2354P33,323A2354P41,323A2357P1,323A2357P2,
,323A2357P21,323A2357P3,323A2357P4,323A2374P2,323A2374P3,323A238P2,323A2396P155,323A2396P157,323A2396P18,323A2396P47
,323A2396P81,323A2419P3,323A2433P21,323A2440P10,323A244P15,323A2451P1,323A3347P1,323A3347P10,323A3347P11,323A3347P12,323A3347P13,323A3347P14,323A3347P16,323A3347P17,323A3347P2,323A3347P22,323A3347P3,323A3347P32,323A3347P4,323A3347P5,323A3347P6,323A3347P7,323A3347P8,323A3347P9,323A4747ETP14B
,323A4747ETP37RKIT,323A4747ETP41,323A4747ETP4A,323A4747ETP6C,323A4747ETP8A,323A4747NZP27B,323A4747UCP5,323A4747UQP1A,323A4747UUP4,323A4747UUP5,323A5750P10,323A5750P11,323A5750P12,323A5750P13,323A5750P14,323A5750P16,323A5750P18,323A5750P20,323A5750P6,323A5750P7,323A5750P8,323A5750P9,323A57581,323A8923,323B7988P01,323B7988P02,323B7989P02,324A9109P107,324A9243P001,324A9586P001,324A9586P003,325,3268A1039P20A,326A196P002,326A2370P030,327659309C,3276593-09C,327659314,3276593-14,327932RA119A1,328A200HIOXX,328A7161P001,328A7161P003,328A7161P004,328A7230P119,328A7327P002,328A8427P001,328A8427P010,328A8478P002,328A8478P005,328A8478P107,328A9259001 (287A177133P001),329A3529P001,329A3529P020,329A3529P021,32D3126T,
E公司E Speedtronic Spares可变调速装置备件:343,365,450,600,610,814,1500,2272,2862,3001,3010,3130,3476,4153,4157,5806
,7415,8501,9012,14875,17021,18000,28320,42643,48220,64005,67097,67800,81303
,82262,98038,109452,114627,136855,148811,174600,200153,281048,282232,312602
,376911,387532,398530,398554,398557,398637,398682,398697,398737,398779,398785
,398803,398875,398879,398887,,98985,399137,399601,408222,408230,469480
522771,522772,721111,800234,1020516,1228803,1878509,359236,407140,111047
,111078,111705,670000,671035,987762,178500,260284,101107,466501,1197100,1510685
,6129100,2984712,3152201,0411043,3802000,8940005,15048634,19218632,71210225,31000000
447739150,99981004,32000000,00332303 31000913 20013000 111439004 530000000 605320002 597514501 9070000000 30471583020 702459000000 90010100000000 #2-B PERMATEX 0.35X1500 0000-7812-02 00079-0325-0002
001-1197-100 005-7416-34-0275 007-05FA-P25J EMO 282 00705FAP25JEMO282
01-002849 011-1197-100 01151-0685 01168J76P0001 0116B66501
0117C216401 0117C5050001 01223J53P0001 01336J17P0010
01336J17P0017 01336J17P0019 01336J17P0401 0158D1083P002
30HR1,30-HR1,31,311A5177 P1,311A5177P1,311A5177P3,311A5177P5,,311A5178P002,311A5178P011,311A5178PT2,311A5178PT5,311A5178PT5 D,311A5449P005,311A5449P006,311A5782P002,311A5801P003,311A5802P001,311A5802P002,311A5802P008,311X0945WIBL100F,311X0945WIBL10-0F,311X0945WIBL246C,311X0945WIBL24-6C,311X0945WIBL246D,311X0945WIBL24-6D,311X0945WIBL246E,311X0945WIBL24-6E,311X0945WIBL246F,311X0945WIBL24-6F,312A6046P003,312A6077P001,312A6077P004,312A6089P001,312A6090P001,312A6090P002,312A6091P001,312A6091P002,312A6091P003,312A6091P004,313954-002 7913,313954-002? 7713,313954-0027926,313965-009,313A3129P0001,314A5945P002 REV ,314A5945P002REV,314A5945P2
,315A2066P001,315A2618P010,315A2660P003,315A2739P011,315A4147P2,315A4147P8,315A4204P001,315A4459P0004,315A4459P2,315A4459P4,315A9332P001,315A9332P1,318A1093,318A9427P001,318A95422,318A9542-2,318A95423,318A9542-3,318A95425,318A9542-5
,318A95426,318A9542-6,318A9542P004,31320E,321308B,32271,323031205,323-03-1205,