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Nouvelles gammes de batterie HIDS !
Cliquez ici pour en savoir plus !I am trying to configure my HI 3000 unit as a master controller for DeviceNet. Can I enter parameters and display the readings from an A-B Panelview if I don't have a PLC?
The DeviceNet works the same way in all the HI 3000 series units (which include the HI 3010, HI 3030, HI 3300 and HI 3600).
Within a DeviceNet network, the designations "Master" and "Slave" are indication of where the data is coming from or going to. A slave can have only one master, can only talk to its master, and cannot get/send data to another node on the network. A master can talk to multiple slaves assigned to it. The terms "Master" and "Slave" are correct terms when referring to DeviceNet protocol. We mean no offense to any of our customers.
As a Master/Slave, the HI 3000 series unit can be a slave to its master, and also be the master for its own slaves. The "Polled" communications between any master and slave are a set number of bytes mapped into their input/output tables. This mapping of the input/output tables requires a DeviceNet configuration software (this is not available in the HI 3000 unit). Once the network is set up and all input/output tables are mapped in the respective nodes, the data will flow. The amount of data available would be determined by the size of the I/O tables set up in the Device Net configuration.
Using the Command Interface in the HI 3000 unit, the user can set/change parameter values. If the user has control of the output data from one node to the HI 3000, then they can modify the parameters in the HI 3000 unit. In order to be able to configure the HI 3000 unit over the command interface, the user must have control of the data being sent to the HI 3000 unit from the other device.
For Example:
The DeviceNet network consists of the HI 3000 and a DeviceNet display. The DeviceNet display is configured as a slave to the HI 3000. The I/O of the HI 3000 is set up as 12 bytes (6 words) of input and 12 bytes of output. The DeviceNet display is also set up as 12 bytes I/O. The HI 3000 has the Gross Weight mapped into word #0 of the DeviceNet output table and the command interface mapped to words #2 - 5 of the input table and will reflect the commands in words #2-5 in the output table. This will give the display the Gross Weight information in the first two words of its input table.
The words #2-5 of the DeviceNet displays output table will determine any commands sent to the HI 3000 command interface. If the user can manipulate the data in the output table of the DeviceNet display, they can configure the HI 3000 unit using the command interface. Words #0 and #1 can be mapped for other functions like cal or tare.