1747-PIC 1747-PIC
XMT命令將存儲(chǔ)區(qū)內(nèi)的數(shù)據(jù)通過端口傳送出去,當(dāng)存儲(chǔ)區(qū)內(nèi)zui后一個(gè)字節(jié)傳送完畢,PLC將產(chǎn)生一個(gè)中斷,命令格式為 XMT TABLE,PORT,其中PORTPLC用于發(fā)送的通信端口,TABLE為是數(shù)據(jù)存儲(chǔ)區(qū)地址,其*個(gè)字節(jié)存放要傳送的字節(jié)數(shù),即數(shù)據(jù)長(zhǎng)度,zui大為255。
RCV命令從的端口讀入數(shù)據(jù)存放在的數(shù)據(jù)存儲(chǔ)區(qū)內(nèi),當(dāng)zui后一個(gè)字節(jié)接收完畢,PLC也將產(chǎn)生一個(gè)中斷,命令格式為RCV TABLE,PO RT,PLC通過PORT端口接收數(shù)據(jù),并將數(shù)據(jù)存放在TBL數(shù)據(jù)存儲(chǔ)區(qū)內(nèi),TABLE的*個(gè)字節(jié)為接收的字節(jié)數(shù)。
★廈門泰尼電氣有限公司 ★
★:黃東梅 ★
★ :2917675397★
★:
★ (注小黃收)★
★:2917675397★
★地址:廈門市海滄區(qū)海滄街道濱湖一里7號(hào)2008室★
Lambda Electronics Inc. LNS-Y-28 Regulated Power Supply
Soundtube FP633, Sound Focusing Speaker, 100w Max -
Qualidyne ML3AA0A-340 Power Supply Model QML300-091 120
Indramat Interbus Output Module RMA12.2-16-DC024-200
Sanyo Denki 65AA030VXR10 Servo Amplifier RA11D25605B 65
Sanyo Denki 65AA030VXR11 Servo Amplifier RA11D11D25B 65
SY/MAX Class 8030, Type HRK 150 I/O Rack
Mitubishi PC board FX27B - BN624A246H04
Dolan Jenner SafeScan SS550-41000 Upgrade Set of 2 Rece
Daykin Electric OMDGTA-03 Transformer Disconnect
Sew-EuroDrive Inc W20DT71K4/TF/IS Gear Motor
Sew-EuroDrive Inc DRS71M4BE1HR Gear Motor
Atlanta 58 43 250 HP High-Performance Gear Unit with Ad
Atlanta 56 03 039 Gear Unit
ABB DSQC236G, YB560103-CD22 Servo Axis Control Board
INI MV-400 Network Map Interface Card
Namco EB550-69855 Solenoid Push Bar 440-480 Volts, EB55
MC Tech SMC-M2250-4NN1 Macro Meter, SMCM22504NN1
Fanuc A860-0200-T021 Pulse Generator, A8600200T021
Square D FH26025AB Circuit Breaker, 25 AMP, 2 Pole
Uticor 76711-16 Programmable Message Display Rev. D, 76
Atlas Copco 4220379905 - 10 Pin QST Cable -
Modicon AS-516P-007 Rev C25, Memory Board
Parker Cylinder Series 2AN 3.25" bore - 03.25 CC2ANU19A
Bosch Rexroth 0 608 830 166
在自由口通信方式下,還可以通過字符中斷控制來接收數(shù)據(jù),即PLC每接收一個(gè)字節(jié)的數(shù)據(jù)都將產(chǎn)生一個(gè)中斷。因而,PLC每接收一個(gè)字節(jié)的數(shù)據(jù)都可以在相應(yīng)的中斷程序中對(duì)接收的數(shù)據(jù)進(jìn)行處理。