6ES7193-6BP00-0DA0 6ES7193-6BP00-0DA0 6ES7193-6BP00-0DA0
6GK1500-3AA10 2件
RH28M-2EK.3F.1R 0.59kw 2.6A 2个
6GK1561-1AA01 3块
H200MD NED 1块
A20B-2003-0650 数量1
1SAP240000R0001 1
GE IC693CHS391M 1
LF-102.4BM-C24F 4
SJ700-750HFEF2-C 75KW 1
IDEC FL1D-H12RCA 2台
QEH81M-00005 数量 1
EX50A6C-H4PR-1000 3 宜科编码器
370-AI-C-SB-A37.50 3
MR-CV37K4 1
TSXPCX1031-C 1面价493
AB_触摸屏_'10寸?TFT?以太网口,2711PC-T10C4D1,氦检 14年面价26400
6GK7443-1GX20-0XE0 3
A06B-0251-B401 1台
392-1BM01-0AA0 1
变频器:V1000 CIMR-VB4A0005BBA 1
EN50178VDE0160 1个
P11204-1 6
P11205 12
R10600 3
ABD-2 1
11707-TB-24-1102263 1
BD-C/J-2KM25 3
30111013-1 2
W6005-2Z 2
BC1-1330 1
6320M/C3VL0241 1
PF263S1B/0X34F22C/67S3MA 1
PF2631 B/OX34F22C/67 S3MA 1
PF263S1B/0W34F22C/67S4MA 1
DPF266S10/BGF08SB1/WA 1
PF261S1B/2B10F32B/67S6AA 1
BY7J-FB01-A06 1
SGM7J-02AFC6S 1 --------
JEPMC-W6022 1 -----------
BY7J-PB01-A06 1
JEPMC-W6002-01 1 ----------
BY7J-PB01-E07 1
BY7J-PW01-E06 1
SGD7S-2R8A00A 1 ----------
JZDP-J008-632 4 ----------
JZSP-CLP70-03-H 4 -----------
JZSP-CL2N703-10-E 4 -----------
JZSP-CL2L100-07-H 1-----------
34765(250V 1A) 2
3429100023A-a 2
34262 1
34263 1
35237 2
35233 2
25720+27209 1
4700-81E07K662 2
西门子变频器M440用冷却风扇(厂家:ZIEHL-ABEGG,型号:RG28P-4EK.41.1R 1-230V 0.69KW 3.0A 1380rpm) 4个
JEBC-61304-INV 2
ACC8T PMAC-2TUVW FLAG数量1
VIVOIL X1P1701FBBA 数量1
G2R-2-SND DC24(S) BY OMB数量600
功率板ZINT-880-045A-J056 1
MR-J3-CR55K4 1
EJA430E-DHSJ-912DA 附M20*1. 5 5
FR-V540-7.5(7.5KW) 1
FR-A740-7.5(400V 7.5KW) 1
FR-A740-2.2(400V 2.2KW) 1
SEJ2200A01D5K 1.5KW 输入:AC220V 2
PFXGP4502WADW 2
TL-FC311A-20 1
TPC1271Gn DC24V 1
DNC-63-250-PPV-A。 带底座 6146,SNCB63 数量10
M3104 1
M8049 1
9182-12 1
9182-10 1
ASE002942 1
NZM6-100? MOELLER 塑壳断路器
SI6800??IFM? IFM? 流量开关
100-D420ED11 电压208...277V 50/60HZ 4个
AB 100-E400ED11 100-250V 1 面价12543
NH1600C150B0350 E0037949 1
6SL3995-6AC10-0AA0 1
6SL3995-6AC00-0AA0 1
QEH81M-00005 数量 1
442L-SFZNMZ W 1个 面价64636
锌锅电气柜控制模块 1 块 3EL703254G
锌锅电气柜控制模块 1 块 4EL704820
6AV7800-0BB00-1AB0 1
6AV7870-0BF51-1AB0 1
6ES7193-6EF00-1AA0 1个
6SL3201-0BE21-8AA0 4
6ES7138-4DF11-0AB0 5
6ES7 138-4CB11-0AB0 5
6ES7 131-4BF00-0AA0 10
6ES7 151-7AA21-0AB0 2
PM590-ETH C8 1个
HPU690/048MB2 1台
20F11NC043JA0NNNNN 28476 2台
20F11NC030JA0NNNNN 18193 3台
20F11NC060JA0NNNNN 33448 2台
20F11NC072JA0NNNNN 42149 5台
20F11NC5P0JA0NNNNN 8870 1台
20F11NC011JA0NNNNN 11978 1台
20F1ANC140JA0NNNNN 73111 1台
6GK7243-1EX01-0XE0 1
3UF7941-0AA00-0 1
37S1312- 6CC10-0YA5 1套
LXM32MD30N4 1
BSH1401P31A2A 380v 3.0kw 1
VW3M8102R50 5m 1
VW3M5101R50 5m 1
VW3A3601 1
VW3M3401 1
LXM28EU15M3X 2
BCH2MM1523MA6C 1.5kw 2
VW3M8D2AR50 5m 2
VW3M5D2AR50 5m 2
VW3M9BATT 2
VW3M8BATC 2
LXM28EU07M3X 1
BCH2LF0733MA5C 0.75kw 1
VW3M8D1AR50 5m 1
VW3M5D1AR50 5m 1
VW3M9BATT 1
VW3M8BATC 1
ATV310HU15N4A 1.5kw 2
ATV310HU30N4A 2
FPNO-21 5只
HCS01.1E-W0018-A-03A 2个
施耐德140ACI04000 面价17661.49 12只
6FX2001/5QP24 3个
6FX2001-5QP24
NTU7Q2E, 9个 ABB 贝利----------------
PP886 3BSE092980R1 ,1个-------------
A06B-1512-B103 1--------------
ACS580-01-106A-4(带中文显示面板) 1
6FX 8002-5DA01-1DH0 qty: 12
6FX 8002-5DA01-1BF0 qty:30
BOSCH 0 810 091 207 081WV06P1V1002WS024/00D0
0810091207
1756-OB16I 面价:8972
V7-1X1AD9C16A 1/8HP MX 5台
电源接口板SDCS-PIN-21 (ABB) 2
BMXDDI6402K
BMXDDO6402K
BMXPRA0100
1794-IF8IH数量1 13786
2098-IPD-HV220数量1 69000 2011面价
MP9-21247K
140CPU31100 数量:1
140CPU31110
6ES7592-1AM00-0XB0 数量:2
6SE6400-0PM00-0AA0 数量:1
6ES7515-2FM01-0AB0 数量:1
6SL3210-5FB10-8UF0 数量:1
6ES7960-1CB00-0AA5 1
6ES7960-1BB00-5AA5 1
6ES7194-2LH50-0AA0 2
6ES7194-2LH50-1AA0 2
6ES7194-2LH50-0AC0 1
6ES7194-2LH50-1AC0 1
6ES7193-6AS00-0AA0 1
6ES7 131-6BF60-0AA0 2
6ES7 193-6AR00-0AA0 1
6ES7 155-6AU00-0BN0 1
7MH4960-2AA01 3
IRMAX-AA-AC-011-AB-01 Methane , 0-100% LEL
6ES7194-3JA00-0AA0
M123RX9802+0AA00
6ES7194-4GA00-0AA0 各1个
JAMSC-120DAI54300 -----------
B2507A
JAMSC-B2507AV------------
MR-CV37K4
MR-J3-CR55K4
6ES7317-2EK13-0AB0
6ES7407-0DA02-0AA0
6ES7216-2BD23-0XB0
6ES7214-2AD23-0XB0
6ES7132-4BF00-0AA0
6ES7138-4CA01-0AA0
6ES7151-1AA05-0AB0
6ES7350-1AH03-0AE0
6ES7953-8LJ30-0AA0
6ES7153-1AA03-0XB0
6ES7952-0KH00-0AA0
6AV6642-0BC01-1AX1
6AV6643-0AA01-1AX0
6ES7414-2XG03-0AB0
6ES7414-2XK05-0AB0
6ES7322-1HH01-0AA0
6ES7972-0BA41-0XA0
6ES7131-4BD01-0AA0
6ES7322-1HH00-0AA0
6ES7235-0KD22-0XA8
6ES7315-2AG10-0AB0
6EP1334-3BA00
6ES7972-4AA02-0XA0
6ES7492-1AL00-0AA0
6GK5206-1BB10-2AA3
6ES7321-1BL00-0AA0
6ES7972-0CA23-0XA0
6ES7317-2EK14-0AB0
6ES221-1BF22-0XA0
6ES223-1BH22-0XA0
6ES232-0HB22-0XA0
6ES235-0KD22-0XA0
6AV2124-0MC01-0AX0
6AV6647-0AE11-3AX0
6GK1502-3CB10
6AV6643-0CD01-1AX1
6AV6642-0BA01-1AX0
6ES7216-2BD23-0XB8
6ES7972-0AA01-0XA0
6ES7307-1KA00-0AA0
6ES7133-1BL01-0XB0
6ES7332-5HB01-0AB0
6SN1118-0DH21-0AA1
6SL3352-6BH00-0AA1
6ES7307-1EA01-0AA0
6ES7972-0AB01-0XA0
6ES7972-0BA50-0XA0
6SE6420-2UD21-5AA1
6SN1123-1AB00-0BA1
6ES7132-4BB00-0AA0
6GK1502-3CA10
6AV6643-0BA01-1AX0
6ES321-1BH02-0AA0
6EP1437-3BA00
6ES214-2AD23-0XB8
6ES7216-2AD23-0XB8
6ES7288-1SR40-0AA0
6ES7288-1ST40-0AA0
6GK7243-1EX00-0XE0
6ED1052-1MD00-0BA6
6SE7027-2TD84-1HF3
6FC5611-0CA01-0AA1
6SL3120-2TE21-0AA3
6EP1332-1SH43
6EP1332-1SH51
6EP1352-1SH01
6ES7134-0KH01-0XB0
6ES7135-4FB01-0AB0
6EP1331-1SH01
6AV6545-0BA15-2AX0
6ES332-5HF00-0AB0
6ES331-7KF02-0AB0
6ES7312-5AC02-0AB0
6ES7322-1BL00-0AA0
C98043-A7004-L1-7
6FC5211-0AA10-0AA0
6ES7038-6GL84-1JA1
6AV3607-1JC00-0AX1
6ES7313-1AD03-0AB0
6ES7214-2AD23-0XB8
6ES7223-1BH22-0XA8
6ES7223-1BL22-0XA8
6SE7021-8EB84-1HF3
6SE7031-2HF84-1BG0
6SE7031-7HG84-1JA1
6SE7032-6EG84-1GF0
6SE7090-0XX84-0AB0
6SE7090-0XX84-0FF5
6SE7090-0XX84-0KA0
6SE7090-0XX84-0KB0
6SE7090-0XX84-0KC0
6AV4010-1AA10-0AA0
6ES7322-1HH01-0AA0
6AV6645-0BB01-0AX0
6SE9996-0XA17
6SE9615-8DD10-ZC87
6SN1145-1BA00-0BA0
6SN1145-1BA02-0CA1
6ES7972-0CB20-0XA0
6AV6644-0AB01-2AX0
6EP1334-2AA01
6EP1336-3BA00
6ES7307-1EA00-0AA0
6SE7038-6GL84-1JA1
6ES7131-1BH01-0XB0
6ES7131-1BL01-0XB0
6ES7132-1BL00-0XB0
6GK1503-2CB0
6AV6648-0BC11-3AX0
6ES5318-8MA12
6GK5204-2BB00-2AA3
6ES7153-2BA02-0XB0
6AV6545-0CA10-0AX0
6FC5500-0AA11-1AA0
6SN1118-0NK01-0AA1
6ES7392-1AJ00-0AA0
6ES7392-1AM00-0AA0
6DD1607-0CA1
6AV6642-0BA01-1AX1
6EP1436-3BA00
C98043-A7002-L4
6SE7035-1EJ84-1JC1
6SL3054-0EF01-1BA0
6ES7331-7PF01-0AB0
6ES7953-8LG11-0AA0
6AV6648-0AE11-3AX0
6ES7901-0BF00-0AA0
6ES7232-0HD22-0XA0
6ES7231-0HF22-0XA0
6ES7223-1PH22-0XA0
6ES7901-3CB30-0XA0
6AU1435-0AA00-0AA1
6SE6400-0BE00-0AA1
6ES7158-0AD01-0XA0
6ES7313-5BG04-0AB0
6ES7332-5HD01-0AB0
6ES7921-3AB00-0AA0
6ES7321-1BH01-0AA0
6ES7331-7KF02-0AB0
6ES7334-0CE01-0AA0
6EP1332-1SH71
6ES7231-4HF32-0XB0
6ES7241-1CH32-0XB0
6ES7322-1BH02-0AA0
6SL3244-0BA20-1PA0
6ES7223-1PL22-0XA0
6EP1437-2BA20
6SN1123-1AA00-0DA2
6SN1123-1AB00-0CA3
6ES7972-0AA02-0XA0
6SN1118-0DJ23-0AA2
6SE7090-0XX84-3DB0
6ES7952-1AM00-0AA0
6ES7315-2AH14-0AB0
6ES7232-0HB22-0XA0
6ES7134-4NB51-0AB0
6EP1333-2AA01
6ES7141-3BH00-0XA0
6EP1337-3BA00
6ES7235-0KD22-0XA0
6AV6642-0AA11-0AX1
6ES7151-1AA05-0ABD
6ES7134-4MB02-0AB0
6GK7343-1EX20-0XE0
6ES7313-5BE01-0AB0
6ES7431-1KF20-0AB0
6ES7231-7PC22-0XA8
6ES7158-0AD00-0XA0
6ES7272-0AA30-0YA1
6ES7960-1AA06-0XA0
6ES7151-1AA04-0AB0
6ES7277-0AA22-0XA0
6ES7431-1KF00-0AB0
6ES7972-0BA12-0XA0
6SL3121-1TE21-8AA3
6ES7360-3AA01-0AA0
6ES7331-7TF01-0AB0
6SE6400-1PB00-0AA0
6ES7214-1BD23-0XB8
6FC5203-0AF22-0AA2
6ES7133-1BL11-0XB0
6ES7972-0BA20-0XA0
6ES7323-1BL00-0AA0
6ES7351-1AH01-0AE0
6ES7321-1BH02-0AA0
6ES7322-1BH01-0AA0
6ES5750-2AB21
6SN1114-0NB01-0AA1
6ES7214-1AD23-0XB0
6ES7331-1KF01-0AB0
6DD1681-0AG1
C98043-A7600-L5
6FC5210-0DF21-2AA0
6AV6647-0AF11-3AX0
6AV6643-0DD01-1AX1
6ES7153-2BA82-0XB0
6ES7414-4HM14-0AB0
6ES7414-4HJ04-0AB0
6ES7407-0KR02-0AA0
6SL3120-1TE23-0AA3
6SL3130-6TE23-6AA3
6ES7132-4BD02-0AA0
6ES7315-6TH13-0AB0
6GK5793-4MN00-0AA6
A5E00282044
6GK1105-2AA10
6GK1561-1AA01
6ES7090-0XX84-0FF5
6SX7010-0KC00
6ES7090-0XX84-0AB0
6ES7214-1AD23-0XB8
6ES7212-1BB23-0XB8
6ES7314-1AF11-0AB0
6SN1118-1NH01-0AA1
6SE7038-6EK84-1JC2
A5E00151091-0
6ES7214-2BD23-0XB0
6GK7243-1EX01-0XE0
6ES7313-6CG04-0AB0
6ES7314-6CH04-0AB0
6ES7365-0BA01-0AA0
6GK7343-1CX00-0XE0
6ES7214-1BD23-0XB8
6ES7307-1EA01-0AA0
6ES7038-6GL84-1BG2
6SN1145-1BA01-0BA1
6SN1118-0DK23-0AA2
6ES7952-1AL00-0AA0
6SE7018-0EA84-1HF3
6GK1571-0BA00-0AA0
6ES7223-1PL22-0XA8
6ED1055-1FB00-0BA1
6ES7195-7HD80-0XA0
6ES7315-2EH14-0AB0
6ES7412-2XJ05-0AB0
6EP1331-1SL11
6SE7031-6EB87-2DA1
6ES7321-1BL00-0AB0
6ES7322-1BL00-0AB0
6ES7314-1AG14-0AB0
6ES7332-5HF00-0AB0
6ES7343-1CX10-0XE0
6ES7647-7BD21-0AX0
6GK7342-5DA02-0XE0
6ES7316-2AG00-0AB0
6GK7343-1GX11-0XE0
6AV6671-5AE10-0AX0
6ES7412-5HK06-0AB0
6ES7343-1CX10-0XE0
6EP1333-1SL11
6ES7331-7NF00-0AB0
6AV6642-0BC01-1AX1
6ES7307-1KA01-0AA0
6AV6644-0BA01-2AX1
6AV6647-0AG11-3AX0
6SE6400-0AP00-0AB1
6ESS7331-7PF01-0AB0
6EP1436-3BA10
6ES7131-4BD51-0AA0
6ES7318-3EL00-0AB0
6ES7158-3AD01-0XA0
6ES7151-3BA23-0AB0
6ES7142-6BR00-0AB0
6ES7138-4FA05-0AB0
6ES7138-4FB04-0AB0
6ES7151-1BA02-0AB0
6ES7147-6BG00-0AB0
6ES7193-4CG30-0AA0
6AV6642-0BD01-3AX0
6ES7953-8LL11-0AA0
6EP1961-2BA11
6ES7431-1KF10-0AB0
6ES7416-2XK04-0AB0
6SE7031-0EF84-1JC0
6ED1055-1NB10-0BA2
6ES7407-0KA02-0AA0
6FC5203-0AF02-0AA1
6ES7215-1BG40-0XB0
6ES7241-1AH32-0XB0
6ES7318-3EL01-0AB0
6EP1437-3BA10
6SL3055-0AA00-5BA3
6EP1334-2BA01
6ES5441-8MA11
A5E33783816
6ES7315-2AF03-0AB0
6ES7321-1BH01-0AA0
6ES7223-1PM22-0XA0
6ES232-0HB22-0XA8
6ES223-1PH22-0XA8
6ES7214-2BD23-0XB8
6SE7024-7TD84-1HF3
6ES7416-2XN05-0AB0
6ES7031-7HG84-1JA1
6ES7953-8LF20-0AA0
6ES7412-3HJ14-0AB0
6GK7443-1EX11-0XE0
6ES7354-1AH01-0AE0
6ES7307-1BA01-0AA0
6ES7321-1FH00-0AA0
A5E36717803
6GK1502-2CC10
6ES7314-6CG03-0AB0
6EP1333-2AA00
6ES7193-4CA50-0AA0
6ES7953-8LL20-0AA0
6RY1703-0GA01
6ES7972-0BA52-0XA0
6ES7153-2BA02-0XB0
6ES7870-1AB01-0YA0
1R6RA7075-6DV62-0
6ES7321-7TH00-0AB0
6ES7322-5HF00-0AB0
6AV6647-0AD11-3AX0
Sunx FX4N-A3R Photoelectric Sensor 22916 Red
Electro Corporation PPR025A Ring Sensor
Vickers Hydraulic Valve DG4V-3-6A-L-M-W-B-40
Sunx Sensor Amplifier GA-2 J6 new
Dynacorp Clutch Brake Magnet 305354 90 v new
Potter & Brumfield Relay R50-E2-Y2-24VDC new
Action Instruments VISIPAK Model V708-0000-0
Dynapar Encoder EC8210241100 1/4 in shaft
Fuji Electric Rotary Encoder RE020T new
Powers Powerstar Thermostat 182-508
Quartech Allen Bradley Pushbutton Station 8656 PLC-2
IFM Efector ID0038 IDC2050BARKA/LS-300BL Inductive Sens...
IFM Efector IC5010 ICE3040-FPKG/NPT Inductive Sensor
Keyence Proximity Sensor EH-1328 new
PHD Set Point Module 9800-01-0300 new
Asco Shutoff Valve 8030G17 1/2 in
Asco General Purpose Valve 8320G174 1/4 in
Telemecanique Limit Switch XCK J5930H7 XCKJ5930H7
Honeywell Micro Switch BZG1-2RN62 new
Flex Core Current Transformer 189-025 new
Banner Emitter Sensor SM53E new
AW Company Carrier Frequency Sensor CAPM-3 new
Banner Photoelectric Sensor D12EP6FP 41966 new
Banner Photoelectric Sensor SM2A312LVAGQD 26865 Mini-Be...
Schrader Bellows Hydraulic Valve K1759035 K175-9035
Allen Bradley Oiltight Limit Switch 802T-APN
Vickers Coil 868982 new
Omron Proximity Switch Sensor E2EX20MD1-M1 new
Crouzet Position Detector Limit Switch 81 921 911 81921...
Balluff Inductive Proximity Sensor BES 516-211-E4-E-05 ...
Balluff Inductive Proximity Sensor BES 516-3005-E4-C-PU
Honeywell Micro Switch Photoelectric Sensor FE-TPC04F
Pepperl + Fuchs Inductive Proximity Switch Ring *New* 9...
DYNEX 6553-D03-115-DF-SL-10 NEW
Peter Paul Electronics O73KKDZCV Solenoid Valve new
Castell Interlocks AutoStop 4
Turck BCA-57-E223 Devicenet Conduit Cover Adapter new
Ross Pressure Relief Valve 2768B3901 new
Sola Power Supply 83-24-212-03
ABB 3-Pole Disconnect Swtch 20AMP 600VAC *New* OT25ET3
Hurst Motor T 2602-001 1 RPM 115 V new
Appleton ECP-2023 Plug for Haz Locations
Pepperl + Fuchs Proximity Sensor NMB1.5-8GM-65-E2-FE-V1...
Balluff Limit Snap Switch BNS-819-FK-60-101 43693 *New*
Numatics Solenoid Valve *New* 081SS400K046T
Numatics Solenoid Valve *New* 081SS500K
Numatics Solenoid Valve *New* 11SAD400O
Numatics Solenoid Valve *New* 11SAD4110000030
PDI Pressure Switch PDCA-3-6SF-C-HC-1 new
MDI Mercury Relay/Contactor 335NO-24D-18 new
SSAC Time Delay Relay Tru3 new
Red Lion Appollo IMP IMP200 DC Meter new
Oriental Motor AC Motor 4IK25GN-AUL new
Condor Power Supply HTAA-16W-A+ new
Sola Power Supply 83-12-218-03 new
Balluff Inductive Sensor BES 516-3028-S 4-C *NIB*
Balluff Inductive Sensor BES 516-371-E4-C-03 *New*
efector 100 inductive proximity sensor switch IG5397 N...
efector IN-3004-BPKG IN5300 NEW
Condor Power Supply HC28-2-A+ 28v new
IFM Efector Inductive Sensor IN0097 IN-2002-ABOA*New*
Numatics 110/120V Directional Manifold *New* 062BB615K...
Numatics Solenoid Valve *New* L23BB452B017G61
Vickers Coil 868988 24 vdc
Vickers Coil 868988 24 vdc
SMC Air Catch Sensor ISA15
Burkert Solenoid Valve 0330C 0330 C 5/64
Kunkle Relief Valve 537-D01-HM 3/4" 125 psig new
Allen Bradley Inductive Proximity Sensor 871TM-B15N30-R...
Numatics Regulator Valve *New* 081RS300J
Numatics Solenoid Valve *New* 041SS4Z2GN000F
Numatics Solenoid Valve *New* 041SS4Z2KN000030
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西门子ET200SP模块6ES7193-6BP00-0DA0是基础单元 BU15-P16+A0+2D, 类型 A0 的基础单元, 直插式端子, 不带 AUX 端子, 新的负载组, 宽x高:15x 117mm
一、功能介绍
伟创AC60系列变频器内置国际标准的MODBUS(从站)通信协议,配合RS485通信模块,可非常方便的实现远程通讯控制功能。
二、S7-200的自由口通信模式说明
S7-200系列PLC有一种特殊的通信模式:自由口通信模式。在这种通信模式下。用户可以在自定义的通信协议(可以在用户程序中控制通信参数:选择通信协议、设定波特率、设定校验方式、设定字符的有效数据位)下,通过建立通信中断事件,使用通信指令,控制PLC的串行通信口与其它设备进行通信。只有当CPU主机处于RUN工作方式下(此时特殊继电器SM0.7为1)才允许自由通信模式,此时S7-200失去了与标准通信装置进行正常通信的功能。当CPU主机处于STOP工作方式下时,自由通信模式被禁止,PLC的通信协议由自由通信协议自动切换到正常的PPI通信协议。
三、下面以西门子S7-200系列PLC为例,介绍PLC与变频器建立通讯并实现对变频器起停、频率给定、监控、发送广播指令等功能的控制。
变频器作为MODBUS协议从站接收来自CPU226 PLC的通信指令。
1、变频器在与CPU226通信前须做好以下准备工作:
1)确认已安装好AC60系列485通信模块;
2)用一根带9针阳性插头的串口通信电缆连接在CPU226 PLC的自由通信口端(PORT0或PORT1),电缆另一端的第3、8线分别接在AC60变频器A+、B-端子上;
3)预先设置变频器以下参数:
H-66=0//变频器设为从站
H-67=1 //变频器通讯地址为1
H-69=3 //通讯波特率9.6K
H-68=1 //(E、8、1)//通讯数据偶校验
E-01=2 //变频器的运行采用通讯方式
E-02=6 //变频器的给定频率设定采用通讯方式
2、PLC内存使用说明
西门子S7-200系列PLC的自由通讯端口编程必定会用到两个指令,即XMT(发送)指令和RCV(接收)指令。编写程序时需要为这两个指令指定数据缓冲区,一般以位数为0的地址作为数据缓冲区的起始地址。
1)发送指令XMT缓冲区(写/读)
VB100 //xmt指令要发送的字节个数
VB101 //变频器通讯地址(01)
VB102 //modbus功能码(06/03)
VB103 //变频器被写地址高位/变频器被读起始地址高位
VB104 //变频器被写地址低位/变频器被读起始地址低位
VB105 //被写数据高位/被读数据字个数高位
VB106 //被写数据低位/被读数据字个数低位
VB107 //被发送数据CRC低位
VB108 //被发送数据CRC高位
2)接收指令RCV缓冲区
VB200 //rcv指令要接收的字节个数
VB201 //变频器地址(01)
VB202 //modbus功能码(06/03)
VB203 //变频器被写地址高位/被读数据字节个数高位
VB204 //变频器被写地址低位/被读数据字节个数低位
VB205 //被写数据高位/被读数据高位
VB206 //被写数据低位/被读数据低位
VB207 //被接收数据CRC低位
VB208 //被接收数据CRC高位
VB217 //被接收数据CRC验算低位
VB218 //被接收数据CRC验算高位
3)CRC校验子程序(SBR0)
伟创AC60变频器内置的MODBUS协议采用RTU传输格式,只是采用了部分MODBUS从协议(只支持03、06、08H这三种命令)通信速率比ASCII模式更快。该格式使用CRC校验方式对每次发出或接收的数据帧进行校验。因此,该子程序使用了多个局部变量,以方便其它子程序调用。