1 寮曡█
鐝�(xi脿n)浠e伐妤�(y猫)鎺у埗绯荤当(t菕ng)閫氬父浠c姗�(j墨)鐐轰笂浣嶆(j墨)锛岄€氶亷鑸囩従(xi脿n)鍫�(ch菐ng)宸ユ帶瑷�(sh猫)鍌欏plc鐨勬暩(sh霉)鎿�(j霉)浜ゆ彌鑸囪檿鐞嗭紝瀵�(sh铆)鐝�(xi脿n)灏�(du矛)鐢熺敘(ch菐n)閬庣▼鐨勮嚜鍕�(d貌ng)鎺у埗銆傚皪(du矛)浜庡皬鍨嬫帶鍒剁郴绲�(t菕ng)锛岄噰鐢ㄥ皥闁€鐨勭祫鎱�(t脿i)杌熶欢鎴愭湰澶珮锛岀敤vb瑷�(sh猫)瑷�(j矛)鐩�(ji膩n)鎺х郴绲�(t菕ng)鍓囧彲浠ラ檷浣庢垚鏈�锛屼絾棣栧厛瑕佽В姹轰笂浣嶆(j墨)鑸噋lc涔嬮枔閫氫俊鍟忛銆備互寰€浣跨敤杓冨鐨勯€�(j矛n)绋嬮枔閫氫俊鏂瑰紡鏄痙de锛堝嫊(d貌ng)鎱�(t脿i)鏁�(sh霉)鎿�(j霉)浜ゆ彌锛夋柟寮�锛岄毃钁梠pc鎶€琛�(sh霉)鐨勭櫦(f膩)灞曞拰鏅強锛屽畠宸叉垚鐐哄伐妤�(y猫)閬庣▼鎺у埗鐨勯€氫俊妯�(bi膩o)婧�(zh菙n)銆俹pc鏈嶅嫏(w霉)鍣ㄦ湁鍏╅鎺ュ彛锛屽叾涓嚜鍕�(d貌ng)鍖栨帴鍙d富瑕佺敤浜巚b銆乨elphi绛夐枊鐧�(f膩)宸ュ叿銆傛湰鏂囧埄鐢ㄧ緟鍏嬮煁鐖惧叕鍙告彁渚涚殑opc鎺ュ彛锛岀敤vb绶ㄥ浜嗗鎴剁鎳�(y墨ng)鐢ㄧ▼搴忥紝瀵�(sh铆)鐝�(xi脿n)浜嗕笂浣嶆(j墨)鑸嘺b鍙法绋嬫帶鍒跺櫒涔嬮枔鐨勬暩(sh霉)鎿�(j霉)浜ゆ彌銆�
2 opc鎶€琛�(sh霉)绨�(ji菐n)浠�
opc锛坥le for process control鈥旂敤浜庨亷绋嬫帶鍒剁殑灏�(du矛)璞¢€f帴鑸囧祵鍏ワ級鏄竴濂椾互寰粺灏�(du矛)璞¢€f帴鑸囧祵鍏le銆佺祫浠跺皪(du矛)璞℃ā鍨媍om銆佸垎甯冨紡绲勪欢灏�(du矛)璞℃ā鍨媎com锛坉istributed com锛夋妧琛�(sh霉)鐐哄熀绀�(ch菙)锛屽熀浜巜indows鎿嶄綔骞宠嚭(t谩i)锛岀偤宸ユキ(y猫)鎳�(y墨ng)鐢ㄧ▼搴忎箣闁撴彁渚涢珮鏁堢殑淇℃伅闆嗘垚鍜屼氦浜掑姛鑳界殑绲勪欢灏�(du矛)璞℃ā鍨嬫帴鍙f(bi膩o)婧�(zh菙n)銆俹pc瀵�(sh铆)闅涗笂鏄彁渚涗簡涓€绋(j墨)鍒讹紝閫氶亷閫欑ó姗�(j墨)鍒�锛岀郴绲�(t菕ng)鑳藉浠ユ湇鍕�(w霉)鍣�/瀹㈡埗绔(bi膩o)婧�(zh菙n)鏂瑰紡寰炴湇鍕�(w霉)鍣ㄧ嵅鍙栨暩(sh霉)鎿�(j霉)骞跺皣鍏跺偝閬炵郸浠讳綍瀹㈡埗鎳�(y墨ng)鐢ㄧ▼搴�銆傞€欐ǎ锛屽彧瑕佺敓鐢�(ch菐n)鍟嗛枊鐧�(f膩)涓€濂楅伒寰猳pc瑕�(gu墨)鑼冪殑鏈嶅嫏(w霉)鍣ㄨ垏鏁�(sh霉)鎿�(j霉)閫�(j矛n)琛岄€氫俊锛屽叾浠栦换浣曞鎴舵噳(y墨ng)鐢ㄧ▼搴忎究鑳介€氶亷鏈嶅嫏(w霉)鍣ㄨí鍟忚ō(sh猫)鍌�銆�
opc鏈嶅嫏(w霉)鍣ㄦ湁鍏╅鎺ュ彛:瀹氬埗鎺ュ彛鍜岃嚜鍕�(d貌ng)鍖栨帴鍙�銆傚畾鍒舵帴鍙g偤c++绋嬪簭鏈嶅嫏(w霉)锛岃嚜鍕�(d貌ng)鍖栨帴鍙g偤vb閫欎竴椤炲彲浣跨敤鑷嫊(d貌ng)鍖栧皪(du矛)璞$殑绋嬪簭鏈嶅嫏(w霉)銆傚畾鍒舵帴鍙f槸鏈嶅嫏(w霉)鍟嗗繀闋堟彁渚涚殑锛岃€岃嚜鍕�(d貌ng)鍖栨帴鍙e墖鏄彲閬哥殑锛屼笉閬巓pc鍩洪噾鏈�(hu矛)鎻愪緵浜嗕竴鍊�(g猫)鍙仛鈥滆嚜鍕�(d貌ng)鍖栧寘瑁濆櫒鈥濈殑鍕�(d貌ng)鎱�(t脿i)閫f帴搴�(k霉)锛岀敤浜庡湪鍏╄€呴枔杞�(zhu菐n)鎻�銆�
opc鏁�(sh霉)鎿�(j霉)瀛樺彇瑕�(gu墨)鑼冭(gu墨)瀹氱殑鍩烘湰灏�(du矛)璞℃湁涓夐:鏈嶅嫏(w霉)鍣紙server锛�銆佺祫锛坓roup锛夊拰鏁�(sh霉)鎿�(j霉)闋�(xi脿ng)锛坕tem锛�銆傛湇鍕�(w霉)鍣ㄥ皪(du矛)璞″寘鍚湇鍕�(w霉)鍣ㄧ殑鎵€鏈変俊鎭�锛屼篃鏄祫灏�(du矛)璞$殑瀹瑰櫒锛屼竴鍊�(g猫)鏈嶅嫏(w霉)鍣ㄥ皪(du矛)鎳�(y墨ng)浜庝竴鍊�(g猫)opc server锛屽嵆涓€绋ō(sh猫)鍌欑殑椹�(q奴)鍕�(d貌ng)绋嬪簭銆傜祫灏�(du矛)璞¢櫎浜嗗寘鍚畠鑷韩淇℃伅澶�锛岄倓璨�(f霉)璨�(z茅)绠$悊鏁�(sh霉)鎿�(j霉)闋�(xi脿ng)銆傛瘡涓€鍊�(g猫)鏁�(sh霉)鎿�(j霉)闋�(xi脿ng)浠h〃鍒版暩(sh霉)鎿�(j霉)婧愮殑涓€鍊�(g猫)閫f帴锛屼絾瀹冩矑鏈夋彁渚涘閮ㄦ帴鍙�锛屽鎴剁绋嬪簭鐒℃硶灏�(du矛)鏁�(sh霉)鎿�(j霉)闋�(xi脿ng)鐩存帴閫�(j矛n)琛屾搷浣�锛屾噳(y墨ng)鐢ㄧ▼搴忓繀闋堜緷闈犳暩(sh霉)鎿�(j霉)闋�(xi脿ng)鐨勫鍣ㄧ祫灏�(du矛)璞′締灏�(du矛)瀹冮€�(j矛n)琛屾搷浣�銆�
3 閫氫俊瀵�(sh铆)鐝�(xi脿n)
3.1 rslinx鐨勯厤缃�
rslinx鏄痑b鍙法绋嬫帶鍒跺櫒鍦╳indows鐠�(hu谩n)澧冧笅寤虹珛宸ュ粻鎵€鐢ㄩ€氫俊鏂规鐨勫伐鍏凤紝瀹冧笉鍍呮彁渚涗簡澶氱ó缍�(w菐ng)绲�(lu貌)椹�(q奴)鍕�(d貌ng)绋嬪簭锛岃€屼笖鎻愪緵浜嗘渶蹇€熺殑opc銆乨de鍜宑ustom c/c++鎺ュ彛銆傛湰瑷�(sh猫)瑷�(j矛)涓笂浣嶆(j墨)鑸噇ogix5550鎺у埗鍣ㄩ噰鐢╮s-232涓插彛鏂瑰紡閫f帴锛屽湪rslinx涓灏�(du矛)df1缍�(w菐ng)绲�(lu貌)椹�(q奴)鍕�(d貌ng)绋嬪簭绲勬厠(t脿i)锛岃ō(sh猫)缃覆鍙g壒鎬�:com1銆佹尝鐗圭巼19200bps銆佷竴鍊�(g猫)鍋滄浣嶃€佺劇濂囧伓鏍¢(y脿n)銆佸叏闆欏伐銆乥cc鏍¢(y脿n)纰�銆傛澶栬浣跨敤rslinx鐨刼pc鎺ュ彛浣滅偤鏈嶅嫏(w霉)鍣紝閭勮鍦╮slinx涓皪(du矛)opc閫�(j矛n)琛岄厤缃�銆�
3.2 瀹夎opc鑷嫊(d貌ng)鍖栨帴鍙f湇鍕�(w霉)
鑻ヨ鐢╲b闁嬬櫦(f膩)opc鎳�(y墨ng)鐢ㄧ▼搴�锛屽繀闋堝畨瑁漮pc鑷嫊(d貌ng)鍖栨帴鍙f湇鍕�(w霉)锛屼繚璀夎▓(j矛)绠楁(j墨)绯荤当(t菕ng)鐩寗涓嬫湁opcdaauto.dll銆俹pc鍩洪噾鏈�(hu矛)鎻愪緵浜嗕竴鍊�(g猫)鍙仛鈥滆嚜鍕�(d貌ng)鍖栧寘瑁濆櫒鈥濈殑鍕�(d貌ng)鎱�(t脿i)閫f帴搴�(k霉)锛屽緸opc鍩洪噾鏈�(hu矛)鐨勭恫(w菐ng)绔欙紙www.opcfoundation.org锛夊彲涓嬭級銆傚湪vb鐠�(hu谩n)澧冧腑锛屾寜鈥滃伐绋嬧€濈殑瀛愯彍鍠€滃紩鐢ㄢ€︹€濆悗锛屽綀鍑哄皪(du矛)瑭辨锛岄伕鎿囧叾涓殑鈥渞slinx opc automation 2.0鈥濋爡(xi脿ng)锛岄€欐ǎ鎵嶈兘浣跨敤鑷嫊(d貌ng)鍖栨帴鍙�銆�
3.3 绋嬪簭瑷�(sh猫)瑷�(j矛)
鐢╲b绶ㄥ浜唎pc瀹㈡埗绔噳(y墨ng)鐢ㄧ▼搴�锛屽(sh铆)鐝�(xi脿n)浜嗕笂浣嶆(j墨)鑸噇ogix5550鎺у埗鍣ㄤ箣闁撶殑閫氫俊銆備富瑕佺▼搴忎唬纰煎涓�:
锛�1锛� 閫f帴opc鏈嶅嫏(w霉)鍣�
dim withevents myopcserver as opcserver 鈥樺畾缇╂湇鍕�(w霉)鍣ㄥ皪(du矛)璞¤畩閲弇yopcserver
dim withevents myopcgroup as opcgroup 鈥樺畾缇﹐pc绲勫皪(du矛)璞¤畩閲弇yopcgroup
set myopcserver = new opcserver
myopcserver.connect "rslinx opc server" 鈥橀€f帴rslinx 鐨刼pc鏈嶅嫏(w霉)鍣�
锛�2锛� 娣诲姞opc绲勫皪(du矛)璞�
set myopcgroup=myopcserver.opcgroups.add锛�"group1"锛�
鈥樻坊鍔爋pc绲勫皪(du矛)璞yopcgroup.issubscribed= true
鈥樿ō(sh猫)缃┎绲勬暩(sh霉)鎿�(j霉)鐐哄悗鑷�(t谩i)鍒锋柊
myopcgroup.isactive = true
鈥樿ō(sh猫)缃┎绲勭偤婵€娲荤媭鎱�(t脿i)
myopcgroup.updaterate=1000
鈥樿ō(sh猫)缃暩(sh霉)鎿�(j霉)鍒锋柊鏅�(sh铆)闁撶偤1000
锛�3锛� 娣诲姞鏁�(sh霉)鎿�(j霉)闋�(xi脿ng)
dim abitemids锛堬級 as string
鈥橀爡(xi脿ng)妯�(bi膩o)璀�(sh铆)绗�
dim abclienthandles锛堬級 as long
鈥樺鎴剁鍙ユ焺
dim abserverhandles锛堬級 as long
鈥樻湇鍕�(w霉)鍣ㄧ鍙ユ焺
dim aberrors锛堬級 as long
dim i as long
itemcount=5
dim oopcitem as rslinxopcautomation.opcitem
for i = 1 to 5
abitemids锛坕锛� = "[" & txttopic & "]" & txtitem锛坕锛� 鈥樺皣topic鍚嶅拰妯�(bi膩o)绨藉悕璩︾郸闋�(xi脿ng)妯�(bi膩o)璀�(sh铆)绗�
abclienthandles锛坕锛� = i
鈥樼郸瀹㈡埗绔彞鏌勮肠鍊�
next i
myopcgroup.opcitems.additems itemcount, abitemids, abclienthandles, abserverhandles, aberrors
鈥樻坊鍔犳暩(sh霉)鎿�(j霉)闋�(xi脿ng)鎿嶄綔
锛�4锛� 鍚屾鏁�(sh霉)鎿�(j霉)璁€瀵�
opc鏁�(sh霉)鎿�(j霉)瀛樺彇鏈夊悓姝ユ柟寮忓拰鐣版鏂瑰紡鍏╃ó銆傜暟姝ヨ畝瀵暩(sh霉)鎿�(j霉)寰�(f霉)闆�锛岄渶瑕佽垏浜嬩欢绲�(ji茅)鍚堜娇鐢�锛岃垏鍚屾鐩告瘮閫熷害鎱絾婧�(zh菙n)纰烘€ч珮銆傚悓姝ヨ畝瀵暩(sh霉)鎿�(j霉)绨�(ji菐n)鍠紝鐩存帴浣跨敤opcitem鐨勬柟娉曞嵆鍙�銆�
dim one as opcitem
dim index as long
鈥榠ndex鐐烘(bi膩o)绨介爢搴忚櫉(h脿o)
dim oneread as string
dim xie as string
set one = myopcgroup.opcitems锛坕ndex锛�
one.read opccache
oneread = one.value
鈥樿畝鏁�(sh霉)鎿�(j霉)
one.write 锛坸ie锛�
鈥樺鏁�(sh霉)鎿�(j霉)
鑻ュ彧璁€鍙栨暩(sh霉)鎿�(j霉)锛屽彲浠ヤ娇鐢╠atachange浜嬩欢锛岀暥(d膩ng)鎺у埗鍣ㄤ腑鎵€瑕佽í鍟忕殑鏁�(sh霉)鎿�(j霉)涓€鏃︾櫦(f膩)鐢熸敼璁婃檪(sh铆)灏囨渻(hu矛)瑙哥櫦(f膩)瑭蹭簨浠�锛屽苟灏囪┎鏁�(sh霉)鎿�(j霉)鑷嫊(d貌ng)璁€鍒皌xtvalue鏂囨湰妗�銆�
private sub myopcgroup_datachange锛坆yval transactionid as long, byval numitems as long, clienthandles锛堬級 as long, itemvalues锛堬級 as variant, qualities锛堬級 as long, timestamps锛堬級 as date锛�
鈥樿嚜鍕�(d貌ng)鍒锋柊鏁�(sh霉)鎿�(j霉)
dim i as long
for i = 1 to numitems
txtvalue锛坈lienthandles锛坕锛夛級 = itemvalues锛坕锛�
鈥樼嵅鍙栭爡(xi脿ng)鐨勫€�
txttime锛坈lienthandles锛坕锛夛級 = timestamps锛坕锛�
鈥樼嵅鍙栭爡(xi脿ng)鐨勬檪(sh铆)闁撴埑
txtquantity锛坈lienthandles锛坕锛夛級=getqualitystring锛坬ualities锛坕锛夛級
鈥樼嵅鍙栭爡(xi脿ng)鐨勫搧璩�(zh矛)
next i
end sub
锛�5锛� 鏂烽枊opc鏈嶅嫏(w霉)鍣�
myopcserver.opcgroups.removeall
鈥樼Щ闄ゆ墍鏈塷pc group锛岀┖鍑鸿硣婧�
set myopcgroup = nothing
myopcserver.disconnect
鈥�?d膩ng)鍤卂閫f帴
4 绲�(ji茅)鏉熻獮(y菙)
鍒╃敤鏈枃浠嬬垂鐨勬柟娉�锛屽湪瀵�(sh铆)椹�(y脿n)瀹ゅ(sh铆)鐝�(xi脿n)浜嗕笂浣嶆(j墨)鍜宲lc涔嬮枔鐨勯€氫俊锛屽湒1鏄痮pc瀹㈡埗绔ō(sh猫)缃晫闈�銆傛澶栨垜鍊戦倓瑷�(sh猫)瑷�(j矛)浜嗗煄甯備緵姘寸洠(ji膩n)鎺х郴绲�(t菕ng)锛岄憭浜庣瘒骞�锛岀洠(ji膩n)鎺х晫闈笉鍐嶄竴涓€鍒楀嚭銆�