DS200SDCCG4A
DS200SDCCG4A
可編程控制器的工作過程包括兩部分:自診斷及通信響應(yīng)的固定過程和用戶程序執(zhí)行過程,如圖5-1所示。PLC在每次執(zhí)行用戶程序之前,都先執(zhí)行故障自診斷程序、復(fù)位、監(jiān)視、定時(shí)等內(nèi)部固定程序,若自診斷正常,繼續(xù)向下掃描,然后PLC檢查是否有與編程器、計(jì)算機(jī)等的通信請(qǐng)求。如果有與計(jì)算機(jī)等的通信請(qǐng)求,則進(jìn)行相應(yīng)處理。當(dāng)PLC處于停止(STOP)狀態(tài)時(shí),只循環(huán)進(jìn)行前兩個(gè)過程。而在PLC處于運(yùn)行(RUN)狀態(tài)時(shí),PLC從內(nèi)部處理、通信操作、輸入掃描、執(zhí)行用戶程序、輸出刷新五個(gè)工作階段循環(huán)工作。每完成一次以上五個(gè)階段所需要的時(shí)間稱為一個(gè)掃描周期。
掃描周期是PLC的一個(gè)重要指標(biāo),小型PLC的掃描周期一般為十幾毫秒到幾十毫秒。PLC的掃描周期長短取決于掃描速度和用戶程序的長短。毫秒級(jí)的掃描時(shí)間對(duì)于一般工業(yè)設(shè)備通常是允許的,PLC對(duì)輸入的短暫滯后也是允許的。但對(duì)某些I/O快速響應(yīng)的設(shè)備,則應(yīng)采取相應(yīng)的處理措施。如選擇高速CPU,提高掃描速度;選擇快速響應(yīng)模塊、高速計(jì)數(shù)模塊以及不同的中斷處理等措施減少滯后時(shí)間。對(duì)于用戶來說,要提高編程能力,盡可能優(yōu)化程序;而在編寫大型設(shè)備的控制程序時(shí),盡量減少程序長度,選擇分支或跳步程序等,都可以減少用戶程序執(zhí)行時(shí)間。
INDRAMAT PERMANENT MAGNET SERVO MOTOR MAC112C-0-ED-2-?C/130-A-0/S005
TAMAGAWA TBL-i II SERIES AC SERVO MOTOR 4614N1023E200
YASKAWA AC SERVO MOTOR SGMAH-04AAA41 W/ KAMOSEIKO BALL REDUCER BR100SH-20G-S29?2
MITSUBISHI AC SERVO MOTOR HC-KFS23K W/KAMO BALL REDUCER BR100SH-20G-S03?2/W MOUNT
YASKAWA ELECTRIC 50W AC SERVO MOTOR SGMAH-A5AAAYU41
FESTO CONNECTOR W/ ANGLE SOCKET CONNECTOR, 159423, NEW SEALED
FANUC 3.8KW A22/2000 AC SERVO MOTOR A06B-0147-B675, PLUG #2 101284
MICROMATIC TEXTRON MOTION CONTROLLER MMC-93C-M2-24
INDRAMAT BRUSHLESS AC SERVO MOTOR MAC112C-0-ED-4-?C/130-A-0/WI520?LX/S005
INDRAMAT PERMANENT MAGNET SERVO MOTOR MAC112D-0-ED-4-?C/130-B-0/WI520?LV/S005
INDRAMAT BRUSHLESS AC SERVO MOTOR MAC112D-0-ED-4-?C/130-A-0/WI520?LX/S005
GE FANUC MODEL 50S 3PH 2000RPM 8-POLE 66A AC SERVO MOTOR A06B-0331-B061#?7000
FANUC MODEL 30F 3PH 8-POLE 24A AC SERVO MOTOR A06B-0357-B755, MISSING ENCODER
FANUC AIS 8/4000 2.5KW AC SERVO MOTOR A06B-0235-B500#?0100, PLUG 102930
SIEMENS BRUSHLESS AC SERVO MOTOR 1F6108-8AF71-1E?H0
YASKAWA ELECTRIC AC SERVO MOTOR, NO LABEL, LISTING #3
ALLEN BRADLEY AC SERVO MOTOR 1326AB-B2E-11-A?5 / 126109
INDRAMAT PERMANENT MAGNET MOTOR MAC093B-0-JS-2-?C/110-B-0/S005
YASKAWA ELECTRIC AC SERVO MOTOR, NO LABEL, LISTING #4
YASKAWA AC SERVO MOTOR 100W 200V 0.91A SGMAH-01AAA410-?Y1
COOPER GARDNER DENVER SERVO CONTROLLER MODULE BLS 1-2 960011
YASKAWA 3-PHASE 200V 2.8A 400W AC SERVO MOTOR SGMAH-04AAA41
MITSUBISHI ELECTRIC 3-PHASE 118V 1.1A 200W AC SERVO MOTOR HC-KFS23BK
YASKAWA ELECTRIC 2200W 200V 15.7A AC SERVO MOTOR SGMDH-22A2A-YR1?3
MITSUBISHI AC SERVO MOTOR 3AC 117V 5.2A 750W HC-MFS73B
REXROTH INDRAMAT PERMANENT MAGNET SERVO MOTOR MDD112C-N-030-N?2M-130PB0 / 252400
RELIANCE ELECTRIC ELECTRO-CRAFT SERVO MOTOR 1326AB-B530E-21 / 155326
FANUC ROBOTICS 5F/3000 AC SERVO MOTOR A06B-0346-B256 *DAMAGED*
INDRAMAT 3 PHASE INDUCTION MOTOR 2AD132D-B35RA2-?BS01-D2N1 / 240857 , BROKEN COVE
YASKAWA ELECTRIC 3000R/MIN 200W AC SERVO MOTOR SGMAH-02AAA2C-Y?2
REXROTH 3-PHASE PERMANENT MAGNET MOTOR MKE037B-144-GP0?-BUNN *NNB*
TAMAGAWA SEIKI TBL-I SERIES AC SERVO MOTOR TS 4513N3039E200, ENCODER 104148
ABB ROBOTICS 1 FT3044-5AZ21-9-?Z SIEMENS SERVO MOTOR PLASTIC BROKEN AROUND PIN
JENEAR ANTRIEBSTECHNIK GMBH STEPPING MOTOR 23S21-0300-0000?0-18 *CUT CABLES*
FANUC ROBOTICS AC SERVO MOTOR 1/3000 A06B-0371-B075
BALLUFF ENCODER BRGB2-WCB08
EMERSON BRUSHLESS PERMANENT MAGNET SERVO MOTOR BLM-6310-4
FANUC ROBOTICS 20F AC SERVO MOTOR A06B-0352-B731 *NEW*
INDRAMAT 3-PHASE INDUCTION SERVO MOTOR 2AD132D-B350B2-?AS03-D2V1 / 256468
FANUC * C007E1767 49V 2.8A 3000 R.P.M SERVO MOTOR * A06B-0113-B075#?0008
ALLEN BRADLEY NIPPONDENSO AC SERVO MOTOR 8500-A3D-K1A
FANUC ROBOTICS 30S/3000 AC SERVO MOTOR A06B-0319-B205#?7008
MITSUBISHI ELECTRIC 3-PHASE 60V 0.9A 50W AC SERVO MOTOR HC-MFS053B *LOT OF 2*
MITSUBISHI ELECTRIC 3-PHASE 52V 0.9A 50W AC SERVO MOTOR HF-KP053BK
MODICON S32N-A00-2010 AC SERVO MOTOR .95HP 5500RPM 3PHASE 4.28A 20.77NM
AEG MODICON GETTYS BRUSHLESS SERVO MOTOR 121-085-0V5 / M474-DES0-0P 0C *NEW*
INDRAMAT 3-PHASE INDUCTION SERVO MOTOR 2AD180C-B35OB1-?BS03-B2N1 *NO FAN*
SIEMENS 38-520V 50-2270RPM 1.05-47.0kW SPINDLE MOTOR 1 GG5164-0GG10-7M?U?-Z, FAN