I am new at ab micro820. I want communicate with the plc but i can't. I'm using the Connected Components Workbench Standart Edition and the RSLinx Classic. I tried to configure the IP address in the menu "Internet Protocol(IP)Settings" in "Ethernet" menu of Concected Components and the RSLinx driver are the Ethernet divice, with the same adress that i put on the previous step. The last was because in the first time i tried to to communicate with the automatically option but i dont got answer. The wire are the RJ45 Ethernet.
Hi and welcome to the Forum!
I've just recently setup 4 x Micro820 controllers for a small application, so it is still fresh in my head...
Is this a new "out-of-the-box" controller, and you do not know the IP address?
Out-of-the-box, they are default set for DHCP to assign the IP address. When first powered up, if there is no DHCP server to assign an IP address, after 15 seconds a random auto-configuration IP address is assigned, similar to how a PC is assigned a random IP address when there is no DHCP server on the network. This address will be in the
169.
254.xxx.xxx range with a Subnet of 255.255.0.0. You need to set your PC's IP address to within the same range as the Micro820 has been assigned, such as 169.254.
100.
200, and also the PC's Subnet to 255.255.0.0. This way your PC can see the controller through RSLinx.
Just remember, you do not yet know the last two octets of the random
169.
254.xxx.xxx address assigned to the controller. The "169.254.
100.
200" example I have given for the PC could accidentally match the controllers IP address, resulting in a duplicate IP address, but it is highly unlikely you will be that unlucky.
In RSLinx, do not use the "Ethernet devices (AB_ETH-x)" driver. Set up an "Ethernet/IP Driver (AB_ETHIP)". Browse this driver in the RSWho window and the controller should show up.
Regards,
George
