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Author Topic: ST136 $IOMapError  (Read 9870 times)

Mike Nash

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ST136 $IOMapError
« on: June 09, 2016, 09:00:45 PM »
I was getting a weird error yesterday after installing an additional remote rack, updating firmware in the PLC H2-DM1E to the latest and loading in the program changed offline. It was ST136 $IOMapError but I could not figure out why, only that it was the new rack - 6 slot with EBC-100, F2-8AD4DA-2 and D2-08CDR. The solution turned out to be increasing the WX and WY memory sizes. I don't recall how much I went up, maybe 320 so 0-319 each. But I don't understand why 308 elements each (for WX0-307 and WY0-307) was giving an error when WX307 and WY306 are the last addressed.

Yes manual addressing and also yes, I forgot about right clicking the bar to set the starts.


 
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BobO

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Re: ST136 $IOMapError
« Reply #1 on: June 10, 2016, 08:59:32 AM »
If I'm following, when you increased to 308 with that config, it was unhappy? In the controller, not DmD? Probably an OBOB in the PLC's mapping routine.
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Mike Nash

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Re: ST136 $IOMapError
« Reply #2 on: June 10, 2016, 01:03:11 PM »
Quote from: BobO on June 10, 2016, 08:59:32 AM
If I'm following, when you increased to 308 with that config, it was unhappy? In the controller, not DmD? Probably an OBOB in the PLC's mapping routine.

I believe that is true as far as the PLC not liking it. I tried to data view the ST136 bit but it never changed state (and I don't recall whether it was 0 or 1, but it was the same as the bits above and below.

It was set for 308 elements which I had figured was good since that gave thru WX307 and WY307. It would not go to run and I think it was faulting but ... My memory type is Dynamic, it requires constant refreshes or it gets corrupted!  ;D
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BobO

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Re: ST136 $IOMapError
« Reply #3 on: June 10, 2016, 01:29:58 PM »
Quote from: Mike Nash on June 10, 2016, 01:03:11 PM
It was set for 308 elements which I had figured was good since that gave thru WX307 and WY307. It would not go to run and I think it was faulting but ...

I would love to see if it works with 309. It's probably just off by one on the range comparison.
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Mike Nash

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Re: ST136 $IOMapError
« Reply #4 on: June 10, 2016, 05:04:56 PM »
Quote from: BobO on June 10, 2016, 01:29:58 PM
I would love to see if it works with 309. It's probably just off by one on the range comparison.

I know, and I started to do that, but I was already short on time, especially after chasing this a little, so I just made it bigger. I wasn't sure that was even going to help since I couldn't see what was wrong with it. And now I'm back in my home state.

Oddly, the next morning the Cat 5 patch cord to the new EBC100 rack failed after a power cycle. Bad crimped connector (at least I didn't do it!) Easy (OK, went straight to it lucky) find and big relief.
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