10/22/2008 1:03 PM | |
Joined: 1/17/2007 Last visit: 8/21/2024 Posts: 1545 Rating: (537) |
That was my original thought as well, but I was informed via this forum thatthe BSEND on its ownis allowed if the protocol for the CP is set to ASCII (see the following thread). /tf/WW/en/Posts/20495 However, all the documentation I can find seems to agree with you in that BSEND needs a matching BRECV at the other end. This is not possible for me as the CP is communicating via a specific protocol (which I am writing a my own SCL block) to an external piece of equipment. However, it does seem strange that the CP441 should be different, as other CP's have special FB/FC for generic (PtP) communications (340 uses P_SEND/P_RECV, 341 uses P_SND_RK/P_RCV_RK).I have used these CP's for generic (PtP) communications and they work fine with these PtP specific FC/FB. I assumed that the 441 would also have a specific FB/FC for generic (PtP) communications. Alas, I cannot seem to find this out in the documentation. So could someone please confirmwhat FC/FB I should be using for generic (PtP) communications on a CP441? I have tried experimenting with the handshaking configuration, but this had no effect, even if it was turned off. I am convinced it is not a hardware issue, or parameterisation issue. |
Programming today is the race between software engineers building bigger and better idiot proof programs, and the universe producing bigger and better idiots. |
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10/23/2008 11:05 AM | |
Joined: 4/24/2006 Last visit: 9/20/2024 Posts: 8742 Rating: (1168) |
Dear smiffy, I'm glad it's functioning now. Thanks for feedback. Best regards, Wizard |
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