The BK Bus Coupler connects Ethernet with the modular, extendable TwinCAT I/O makes available configuration tools and Windows NT//XP drivers. Find great deals for Beckhoff BK Ethernet Coupler With 11 Modules. Shop with confidence on eBay!. Configuring the Beckhoff BK Network Parameters. Section Title. Page. 1. Overview of Steps. 1. 2. Parts List. 1. 3. Required Software. 1. 4. Install Required .
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Beckhoff BK9000 Ethernet Coupler With 11 Modules
Warning – total beginner with Modbus and industrial control in general I know that the unit works and is at the IP specified, as I’m able to see it in TwinCat3 and beclhoff manipulate the outputs. There are six outputs manually set high, visible here:. It appears that when I increment the ‘coil’ it’s just reading one bit further into the stream, as “coil” 1, 2, and 3 are rotating left.
However, I still cannot seem to change the values.
I do hear a mystery relay click when setting coil ‘0’ to False but no click on true and the status of the coil beckhovf does not change. TwinCat is also showing no change.
I’m getting a “None” back from the write, which indicates it’s failing according to the bo9000 documentation. I’m sure this is something simple with bit-wise operations or something like that which I’m overlooking. Any ideas on what I’m doing wrong that causing the writes to fail? You should be able to get it from somewhere, e. You get the status Nonei. You heard relay click because something wrong happened plc has reset?
I’d try to rule out any possible hardware configuration issues first though.
I’ll definitely check-out debug mode and Wireshark if nothing else pops-up. As far as I can tell, the hardware is working fine – I can fully control it via Beckhofr, either through a soft PLC or manually right-clicking and setting the outputs to 1 or 0.
BK9000 | Ethernet TCP/IP Bus Coupler
I also have two units BK at home and BK at work and both exhibit the same behavior. Bwckhoff first parameter of the method is which bit to start reading at and the second parameter is the number of bits to read. So your loop is reading bits [ True if write ok or None if fail You get the status Nonei.
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