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only for registers 0x, the register designation itself is 40001 – Holding Register and 30001 – Input Register. Look at the Modbus documentation and many questions will disappear.
If you will use RapidScada on some device, purchase several commercial modules for it.
Masthave Graphics Pro and Automatic Control Module for exampleTCP Server or Client depends on who initiates the connection. For example, a Moxa server, and a Scada Client is a Scada initiator of connecting to Moxa with a real IP address in an open network or in a VPN network. If the Scada Server is a Moxa Client, then the initiator of the connection is Moxa and it accesses the Scada server at the real IP address.
Master/Slave everything is as usual in the Modbus protocol, for example. Scada can be in slave mode if you use the ModbusSlave driver.
Individually or in Shared, this is a way to specify an IP address, it is either taken from the specified settings or from the base of the device – the Call SignAfter changing the settings and adding the Code, you need to transfer the configuration to the Server. Otherwise, how will the Server know that you have added the Code and the tag wizard will know about it? There is no Tag code on your picture, respectively, there is no information for the Channel Creation Wizard what to add.
You must have a communication line set up in the Communicator to be able to use the Channel Creation wizard. In the window, you select a line, a device, and you should be shown how many channels will be created. After that, you transfer the configuration to the server and restart it.
License keys are linked to a PC, so there is no need to purchase them on the PC where you are developing the project, and to purchase them only on the desktop PC where the project will work. Test keys are created until the end of the next day and you can use it if you need to test on different PCs.
Val(106) – Channel value number 106
106 is just a channel number, you will always receive a bit from the number 106, and converted to double by the system beforehandIf you need only one bit from the incoming signal, and you are not interested in the number itself and other bits, then you can simply use the GetBit(Cnl, 0) formula in the input channel without resorting to calculation channels
The command number is the number that is obtained as a result of configuring the Modbus template command, for example, you specified a register entry command and a number 1 or 2 was created for it, this is the number you specify in the control channel (output channel) The output channel number can be arbitrary and you refer to it in the input channel thus creating a link. Switch to version 6, it now has one channel, just specify its type Input, Input/Output, Output
If the setBit formula has already been added to the database, it allows you to change the bit to both 0 and 1
SetBit(Val(101), 2, Cmd)
When transmitting 0, bit number 2 will be reset, when transmitting 1, bit number 2 will be set. The remaining bits of the channel will not be changed
@victorlam In this case, in the existing channel 101, you change the 2nd bit to 1 if it was zero, or it remains 1 if it was in 1 and you write 0
| – or
<< 2 – Shift the zero bit by 2 positionsThat is, this formula is only for setting the 2nd bit to 1
There are a lot of changes in the kernel. Especially when working with archives. The ability to use PostgreSQL as the main database instead of the internal one. Accessing variables by tag code. Removal of restrictions on 65 thousand channels. And apparently much more… If it is possible to upgrade to version 6 or start, then it is better to do so.
The long computer code may be related to the number of network interfaces, if you use Virtualbox or similar programs and run virtual machines, the composition of network interfaces will change. This may be related to the problem of the key operation. Ask the developer to make you a key to the real network card of the computer in this case.
