Unitronics Jazz 2 Ethernet Training Video

Download U90 file Unitronics jazz2 ethernet tutorial

Hello, my name is Alex Martin. I’m an applications engineer at Unitronics. This video will introduce the Jazz 2 Ethernet module, the MJ20-ET1, its uses, as well as setup and configuration using the U90 software from Unitronics. The MJ20-ET1 allows communication over TCP/IP as a master or a slave. You can communicate using the MODBUS IP protocol also as a master or a slave. It will allow communication to other Unitronics PLCs. Also, you can utilize third party Ethernet devices. Once implemented, you’ll be allowed to connect, download, upload, and debug, with U90 ladder. You can connect to SCADA via UniOPC. The supported Jazz 2 Models are: the JZ20-R10, the JZ20-R16, and the JZ20-R31. Please note that there are requirements to use the Ethernet module. You must use U90 ladder version 6.4.0 or greater. Also, you can not use the Ethernet connection to download any OS updates.

Once a Unitronics Jazz 2 model is selected, the Ethernet configuration option will appear in the project navigation window, within the tools folder that’s shown here. Once you click on this, it will open up the Ethernet configuration window. Selecting the “Use Ethernet” check box will allow the configuration of all the Ethernet options. This will assign a vector of 26 MIs for the Ethernet functions. The start of this vector can be assigned anywhere from MI-0 all the way to MI-229, from a drop down menu in the top right of the configuration window. If you’re adding this to an existing program, you’ll need to ensure that no other values will write to this assigned vector space. The option to set the controller to either a server or a client must be set in the configuration window and unfortunately cannot be dynamically changed. This is set down here in the bottom. In this example, I would set the Jazz PLC to a server. After the TCP/IP mode is chosen, information for the server or client settings can be set. Information from the configuration can be stored into selected MIs by choosing the Force on CardNet [SP] option next to each of the different server or client data.

Each IP will contain one byte per MI address, so the IP address will take up four MIs. Also, PLC name, keep alive inactivity. Inactivity timer options can also be entered. Please note that the PLC name is at maximum eight characters. When programming, it is also important to note the different Ethernet system Operands. System bit 22 is read only, it goes high when the MJ20-ET1 module is attached. System bit 23 is also read only, it goes high when the Ethernet port is initialised. System bit 24 goes high when a connection is made. Either when connecting to a remote host when in client mode, or when connected in server mode. System bit 25 is defined by the user, when in client mode, setting this bit attempts to establish a connection with a remote host, and when in server mode, this initiates listener mode. This is required for both options, to establish a connection.

System bit 24 will only go high after this option has been implemented, which is defined by the user. Also, system bit 26, when in client mode, the user may set this bit to terminate the Ethernet session. To connect to the device, the program must first be downloaded via a serial connection, once its downloaded, and system bit 25 has been set to enter listen mode, we can establish a connection to our controller. In the PC communications port settings, select TCP/IP call from the drop down menu. Then the IP, port number, and PLC name can than be entered into the TCP/IP address menu. Again please note that the PLC name can be at most eight characters maximum. This concludes the power point presentation. I will now open a small example program that uses the JAZZ Ethernet module.

As we can see, I selected the JZ20-R31, Jazz 2 PLC. After that is selected, down here in the bottom, under tools, the Ethernet configuration option appears. After selecting “use Ethernet”, it is assigned the vector of 26MIs. I’ve set mine starting at MI-0. But again it can go all the way to MI-229, at the start of this vector. I have set the TCP/IP mode to server, and entered all the server information up here, which is also forced on card initialisation. To establish a connection, we go under controller, open PLC settings, again I’ve selected the TCP/IP call, and I’ve entered in the IP address, the port number, and the PLC name. What I must do then, is set system bit 25 which than initialises the controller, and prepares listen mode, so that we can make a connection. I’ll do that now on the controller.

I should now be able to make a connection, and just get the version. All right. Now I can go online with the controller. For this program, I set a couple of system bits on the HMI display screen. I’ve set system bit 22, which shows that the ET1 module is installed. System bit 23 has gone high now that we have initialised the controller. And system bit 24 is high, because we’ve established a connection. Earlier, right before I connected, I just had to call system bit 25, which started listen mode, and initialised the Ethernet module. Now that we are online, you can see that when I press certain system bits, like to key one and key two, that MB-0 and MB-1 go high. I can now go offline.

This concludes how to configure and connect, using the MJ20-ET1 Jazz 2 Ethernet module. I hope you found the information helpful. Thank you.

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