Networking question

[ganutenator]

Not to mention that I have to put my plc's ip address in a strings.ini file in my hmi directory. Write a vb script in the hmi to read this on startup. Indirectly address all of my plc tags with [plc_ip]. Yes, my code is set up for DHCP, but don't take my work for granted. Not everyone is doing this.

 

[iraiam]

All recent Rockwell stuff I worked with default to class C private IP. (192.168.0.0/24)

I think it's actually 192.168.1.XXX/24, for example the AB Armorstart and Armorblock have a integrated network switch in them, the default IP is 192.168.1.XXX, the XXX represents 3 small rotary switches on the device used to set the last octet of the IP address.

These devices also default to auto-negotiate speed and duplex, but our local I/O networks are all fixed at 100 Mbps FULL duplex. I also seem to remember if you leave the switches at .000, DHCP is enabled, simply setting these switches to anything other than .000 disables DHCP in the integrated switch.

 

[ganutenator]

^ those things sound cool. Do they support modbus tcp?

 

[iraiam]

^ those things sound cool. Do they support modbus tcp?

I'm not sure, I know they have Ethernet/IP and Devicenet models, there may well be others that I am unaware of.

 

[NetNathan]

^ those things sound cool. Do they support modbus tcp?

The same thing is available in AB "1734 Point I/O", from which ArmorPoint is built. "1734 Point I/O" modules are for mounting inside an enclosure, and it has the same Ethernet/IP switch module option (among other AB comms plus PROFIBUS... but I don't think they have a module for Modbus/TCP).
However with the rotary switches set for "000", you can also set ANY IP address within the RSLogix 5000 module configuration, or also BooTP.

ArmorStart is a pretty cool device in itself, including how they can be wired, with ArmorPoint.