Forum

louk
@louk
Eminent Member
Joined: Jan 15, 2025
Last seen: Sep 22, 2026
Topics: 0 / Replies: 27
Reply
RE: TON preset for a 30 day filter timer overflows, what do people use instead

Then don't count, compare. GSV WALLCLOCKTIME into a DINT array at the point somebody presses the filter changed button, store the date, and every hour...

2 weeks ago
Reply
RE: TON preset for a 30 day filter timer overflows, what do people use instead

Cascade it and stop fighting the instruction. One TON with a 60000 ms preset that resets itself on DN, feeding a CTU with a preset of 43200. Counter D...

2 weeks ago
Reply
RE: Told to back up every PLC on site, three brands of rack and no list anywhere

He means the data table. An upload gives you the program and the current values, and on a 5/04 half the machine setup lives in N and F files that some...

2 weeks ago
Reply
RE: Told to back up every PLC on site, three brands of rack and no list anywhere

Yes, the ribbon is the expansion cable, so those two racks are one processor with its I/O split across them. Count them as one backup, not two. 5/04 ...

2 weeks ago
Reply
RE: S7-1200 retain values survive a power cycle but go back to 0 after a download

My battery guess was about forty years out of date. Good thing to learn early.

2 weeks ago
Reply
RE: S7-1200 retain values survive a power cycle but go back to 0 after a download

Could be the backup not holding. On an SLC you had a lithium cell keeping the retentive area alive and when that cell went flat everything came back a...

2 weeks ago
Reply
RE: CompactLogix 1769 bank, slot 4 faults 16#0114 after a download, rest of the rack fine

We chased this on a 1769 bank at the old plant for most of a day. Count the modules and add up the backplane current, because the L33ER only carries s...

3 weeks ago
Reply
RE: CIP Generic MSG to a PowerFlex 525 comes back 16#0005 every time

Path, then. Browsing it out of the tree gets you the drive's slot in the tree, not necessarily the route the message takes when the adapter is doing t...

3 weeks ago
Reply
3 weeks ago
Reply
RE: MSG read works for one tag and errors for another on the same target controller

Some OEM templates set None on everything. Good habit. Bad surprise.

3 weeks ago
Reply
RE: E-stop on a Micro820 standard input, program stops but the PowerFlex 4M keeps running

Right. Comm loss is a drive question. The E-stop has to work with the drive on fire.

3 weeks ago
Reply
RE: GuardLogix safety signature, auditor wants it in the validation file, what is it actually

Then in 2022 somebody took the lock off the safety task, changed something, locked it again and never updated the paper. I've seen that done for a spa...

3 weeks ago
Reply
RE: Two OEM CompactLogix packers both on 192.168.1.x, second one can't join the network

NAT is the answer and I'd let a Rockwell part do it, 1783-NATR. One to one, 32 rules if I remember right, every packet gets the same treatment and the...

3 weeks ago
Reply
RE: FactoryTalk View ME datalog stopped after three weeks, trend ends on a date, no error

Gone. Nothing logged, nothing to show. The files on the card dated the 12th are the last good ones, copy them off for QA before the model overwrites t...

3 weeks ago
Reply
RE: Two OEM CompactLogix packers both on 192.168.1.x, second one can't join the network

Before you buy anything, count what actually has to be seen from the plant side. SE, the historian, the line 3 produced tag. That's the PLC and maybe ...

3 weeks ago
Page 1 / 2