AustralIan
Member
if you press F4 in excel when typing a formula, it will add $ to the cell reference.
Cycles between:
A1
$A$1
$A1
A$1
Cycles between:
A1
$A$1
$A1
A$1
if you press F4 in excel when typing a formula, it will add $ to the cell reference.
Cycles between:
A1
$A$1
$A1
A$1
Pressing Ctrl + Tab switches through all open windows in RS5K. I use some shortcuts for years, Ctrl + R for a new rung, Ctrl + W for a new tag, but only learned about this one a few weeks ago...
That Windows feature (CTRL + TAB) is handy in other programs too. If you use Chrome/IE/ Edge browsers and have multiple tabs open you can use that to cycle through the tabs. Probably works in Firefox, but I don't use FF.
OG
I was doing controls about 10 years before I learned you can assign 2 (or more) IP addresses to the same NIC on a Windows machine (probably other OS's too I imagine). Before that I always used to think IP's had to be one to one with physical hardware, and also that all devices on a switch had to have same IP range etc...but now I know that's totally not the case. You can have some 192.168.1.x PLC stuff and then have your corporate IP of 10.x.x.x and by adding an IP for each to your NIC you can talk to both at the same time...and can have devices with both ranges on the same switch. Unfortunately doesn't work with DHCP (or at least I haven't figured out how to allow DHCP and a separate static IP on the same NIC in Windows)....but still very handy.
And before people harp on me for bad network practice, I recognize these cross addressing schemes probably aren't ideal or recommended for permanent installations, just from a security/traffic isolation point of view...but for testing/start-up scenarios, can be very helpful.
BTW...to do this trick in Windows, press the Advanced button on the IPv4 settings dialog and that brings up the place to add additional IP's. Each one can have it's own gateway IP as well.
There is a good reason for that. If the octets in an IP address have a leading zero, they are interpreted as OCTAL numbers. Your example would not actually pose a problem but .010 is eight, not ten.