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1. #Siemens simatic s7 1200 cant connect flashing error maint update#
2. #Siemens simatic s7 1200 cant connect flashing error maint manual#
3. #Siemens simatic s7 1200 cant connect flashing error maint full#
4. #Siemens simatic s7 1200 cant connect flashing error maint software#
5. #Siemens simatic s7 1200 cant connect flashing error maint download#

"The instruction data is updated both when the instruction is called and also each time the outputs Q or ET are accessed"Īll of the sudden, the behavior I was seeing made sense.

I highlighted it above, but if you scanned through quickly, These two sentences got me thinking and I looked into the TIA Portal help file to see if I could find any more information. You can have multiple updates of a timer in the same scan.

#Siemens simatic s7 1200 cant connect flashing error maint update#

#Siemens simatic s7 1200 cant connect flashing error maint manual#

Through some combination of search terms, Google directed me to the SIMATIC S7 S7-1200 Programmable controller manual on the Siemens website and, while reading over the timer descriptions, ran across two very interesting things. I found several posts that seemed related, but none explained what I was seeing. the FB output was still not being updated.Ībout this time I started searching the forums. Curious to see what would happen, I changed my logic back to the initial version and saw, to my dismay, that nothing had changed. I began to again think that perhaps the problem was related to a bad compile or download. Once a second, the FB was setting the output as intended. The timer timed up, set the debug bit, and the FB output was updated.įeeling a little more encouraged, I used the debug bit as the timer guard instead of checking the timer status. We removed the guard bit on the timer and checked to see if the timer would complete. Sure enough, I saw that my timer appeared to be incrementing and resetting, by my debug bit was NOT being set.Īt this point, I was really feeling lost and decided to get back to basics. This way, if the timer EVER completed, my debug bit would latch. But that didn't answer the question of why it wasn't working on my S7-1200 demo.Īs a sanity check, my next check was to add a SET coil after my timer to see if the timer was ever completing. To try to prove our theory, we opened up Step7, wrote the same two rungs, and tested it on an S7-300 PLC. I consulted a colleague who believed it should work as well.

So as a first attempt at debugging, I deleted the timer, added another, and tried again.

#Siemens simatic s7 1200 cant connect flashing error maint download#

I first assumed there must be some kind of datablock or download error that had occurred and the timer wasn't executing correctly. However, when testing, I could see that even though the timer seemed to be running AND resetting, my output was NOT being set every second. Once a second, the timer would be "DONE" for one scan and the FB output would be updated. Ordinarily, I would expect this logic to work fine. The two rungs that confounded me and several others are shown below: I was doing a quick test on an S7-1200 PLC (programmed in TIA Portal V13) where I needed to perform a non-time critical operation approximately once a second within a re-usable FB. However, I recently ran across an interesting problem that completely stumped me. if it's IEC61131-3 compliant, I've probably written a few rungs on it. Siemens, Rockwell, Beckhoff, Mitsubishi, Panasonic. You'd probably have to contact Siemens directly for that.I've done a lot of PLC programming over the last few years.

#Siemens simatic s7 1200 cant connect flashing error maint software#

Once you download them all and run the exe it unzips the real installer.Īs someone else said, if you have some really old firmware, you might need an older version of the software to do what you want. You need to download DVD1 for Step 7 Basic, which means the. You will need to create a login for the support site (no charge) and then pass an export check when you try to download the file (which is because of silly overbroad laws trying to keep encryption tools away from terrorists, i think) which took me a couple days.

#Siemens simatic s7 1200 cant connect flashing error maint full#

Upside is that there is a trial version! Its the full install, but with a license that only lasts for 21 days. You may need the full software, especially if you intend to do anything useful with the PLC.

Also, I don't recall it being super user friendly, the GUI isn't bad, but FW files need to be stored in a specific directory, there is no way to just go find them. DIfferent features work with different PLCs at different FW revisions, so YMMV. It's does certain service type functions: factory reset, backup, firmware update, program download. If you just need to do a reset, the Simatic Automation Tool may do the job. Moral of the story is that yes, you need the Siemens software. I've never heard of Mango in any relation to Siemens. Just one more question.do I have to use Siemens software to configure the device or is there other software out there that will do it.someone told me Mango etc.? Thx in advance