Log In
Register
Forum
Topic RSS
11:19, EEST
March 14, 2014
Offline
Hello.
Pressure:=TPsInteger.Create(nil);
Pressure.Value:= 21;
IDX := MyOPCProvider.AddressSpace.AddVariable(RootIndex, Pressure, ‘Pr’);
After adding the variable Pressure into the address space
how to determine event what OPC client reads the associated Item ,
and how to determine what is the required reading from the Cache or from the Device ?
15:21, EEST
Moderators
April 17, 2013
Offline
Hello,
Thank you for the question. OPC DA doesn’t really make it possible to know which OPC Client is making the read.
There’s no support for Device read at the moment, so you cannot react to that in the application.
Most Users Ever Online: 518
Currently Online:
14 Guest(s)
Currently Browsing this Page:
1 Guest(s)
Top Posters:
hbrackel: 135
pramanj: 86
Francesco Zambon: 81
rocket science: 77
Ibrahim: 76
Sabari: 62
kapsl: 57
gjevremovic: 49
Xavier: 43
fred: 41
Member Stats:
Guest Posters: 0
Members: 682
Moderators: 16
Admins: 1
Forum Stats:
Groups: 3
Forums: 15
Topics: 1467
Posts: 6261
Newest Members:
digitechroshni, LouieWreve, Kickbiche, karrimacvitie5, graciela2073, sagarchau, elviralangwell4, Donnavek, Eddiefauth, DonaldPoomaModerators: Jouni Aro: 1010, Otso Palonen: 32, Tuomas Hiltunen: 5, Pyry: 1, Petri: 0, Bjarne Boström: 983, Heikki Tahvanainen: 402, Jukka Asikainen: 1, moldzh08: 0, Jimmy Ni: 26, Teppo Uimonen: 21, Markus Johansson: 42, Niklas Nurminen: 0, Matti Siponen: 321, Lusetti: 0, Ari-Pekka Soikkeli: 5
Administrators: admin: 1
