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Search: Posts Made By: RMA
Forum: LIVE PLC Questions And Answers April 30th, 2015, 07:57 AM
Replies: 1
Views: 565
Posted By RMA
This is done in order to ensure consistant timing...

This is done in order to ensure consistant timing for the communications calls (say, every 10ms for example). If you do this in OB1 then the timing will vary depending on program load. Even using a...
Forum: LIVE PLC Questions And Answers April 23rd, 2015, 09:07 AM
Replies: 6
Views: 761
Posted By RMA
It's a pity they didn't expand the example up to...

It's a pity they didn't expand the example up to Byte 7. Then we could have seen from the second DW's address (MD1 or MD4) whether they were using Siemens addressing or CoDeSys and co.

Having to...
Forum: LIVE PLC Questions And Answers March 14th, 2015, 12:55 PM
Replies: 4
Views: 915
Posted By RMA
Use the built-in Timer MB (see the CPU specs for...

Use the built-in Timer MB (see the CPU specs for its address) and use the one second impulse to count up seconds and then divide by 60 as required to get minutes, hours, etc.
Forum: LIVE PLC Questions And Answers March 14th, 2015, 12:51 PM
Replies: 14
Views: 4,145
Posted By RMA
If you're going to be using 315 CPUs anyway I...

If you're going to be using 315 CPUs anyway I can't help wondering why you want to even consider using TIA in it's current catastrophic state instead of sticking with classic V5.5. I'd ditch the...
Forum: LIVE PLC Questions And Answers February 27th, 2015, 08:57 AM
Replies: 47
Views: 5,176
Posted By RMA
@shooter - your comment about Bytes, Words and...

@shooter - your comment about Bytes, Words and DWords is true for CoDeSys but not for Step7. In Step7 (which is what is being used here) M403.4 is part of Byte 403, Word 402 or 403 and Dword 400,...
Forum: LIVE PLC Questions And Answers February 20th, 2015, 09:51 AM
Replies: 47
Views: 5,176
Posted By RMA
Since "Job 20" is Bit M402.3 and "Job 29" is Bit...

Since "Job 20" is Bit M402.3 and "Job 29" is Bit M403.4 these are obviously steps in a sequencer which starts counting its Bits in MB400. Since the Bits are climbing sequentially it's not being...
Forum: LIVE PLC Questions And Answers June 22nd, 2014, 12:06 PM
Replies: 5
Views: 3,210
Posted By RMA
Your understanding of OB86 in §5 is not quite...

Your understanding of OB86 in §5 is not quite correct. If you install an empty OB86 then the program will ignore the fault and keep running regardless - you want to be sure that this is acceptable...
Forum: LIVE PLC Questions And Answers April 30th, 2014, 06:46 AM
Replies: 4
Views: 774
Posted By RMA
Don't use the S5 timers, the IEC timer SFB3 - TP...

Don't use the S5 timers, the IEC timer SFB3 - TP is what you need then you can programm the pulse time in milliseconds.
Forum: LIVE PLC Questions And Answers February 27th, 2014, 06:06 AM
Replies: 18
Views: 4,012
Posted By RMA
The firm has moved offices since 2005. The new...

The firm has moved offices since 2005. The new contact details are:

S. Rothenbacher Industrieelektronik GmbH
Zeppelinstraße 16

89160 Dornstadt

Telefon: (07348) 20 12 08
Fax: ...
Forum: LIVE PLC Questions And Answers February 25th, 2014, 05:15 AM
Replies: 18
Views: 4,012
Posted By RMA
There's a guy in Germany who used to be able to...

There's a guy in Germany who used to be able to do this for you, he charges a fee, but if it works, then I guess that's a lesser problem.

Only problem is that the last time that he did this...
Forum: LIVE PLC Questions And Answers January 15th, 2014, 08:48 AM
Replies: 8
Views: 1,109
Posted By RMA
Perhaps what you've heard about problems with XP...

Perhaps what you've heard about problems with XP and SSDs is the fact that XP doesn't recognise SSDs for what they are and by default XP has automatic defragmenting enabled. If you fit an SSD in an...
Forum: LIVE PLC Questions And Answers December 8th, 2013, 08:00 AM
Replies: 16
Views: 1,834
Posted By RMA
What is the result of the first four lines of...

What is the result of the first four lines of code? If the result is FALSE then the program loads DBW30 and jumps directly to M00e: T #TEMP13, without adding the 6 to it, which would explain why the...
Forum: LIVE PLC Questions And Answers June 13th, 2013, 05:54 AM
Replies: 2
Views: 1,356
Posted By RMA
For this sort of thing I always do it the other...

For this sort of thing I always do it the other way round now - create a single display page for the HMI and resrve a space in the PLC memory for this. I then map the data as required in the PLC -...
Forum: LIVE PLC Questions And Answers April 11th, 2013, 04:59 AM
Replies: 7
Views: 1,194
Posted By RMA
I'm not sure if it's true but I was given to...

I'm not sure if it's true but I was given to understand that the 318 was actually a low-end 400 CPU in a 300 box.
Forum: LIVE PLC Questions And Answers March 23rd, 2013, 09:55 AM
Replies: 28
Views: 3,502
Posted By RMA
The Siemens FM352-5 High Speed Boolean processor...

The Siemens FM352-5 High Speed Boolean processor is a 12 pipe parallel FPGA processor with a cycle time of 1µs. It can be used standalone without a PLC and costs around 700€ (sorry don't have a price...
Forum: LIVE PLC Questions And Answers March 17th, 2013, 09:19 AM
Replies: 14
Views: 1,947
Posted By RMA
I don't know how it was in S5, but in S7 when a...

I don't know how it was in S5, but in S7 when a new DB is opened (used) either implicitly or explicitly, then the previous DB is automatically closed. So, as you've already noticed in the existing...
Forum: LIVE PLC Questions And Answers February 15th, 2013, 10:39 AM
Replies: 13
Views: 3,881
Posted By RMA
The options are greyed out because you have not...

The options are greyed out because you have not stopped at your breakpoint. When you hit a breakpoint (and you can set more than one) the violet circle gets filled with a yellow arrow and the green...
Forum: LIVE PLC Questions And Answers February 15th, 2013, 04:56 AM
Replies: 13
Views: 3,881
Posted By RMA
If you want to single-step through your program...

If you want to single-step through your program after hitting the breakpoint use CTRL+F9 (Execute next statement in the Debug Menu or click on the little yellow arrow second from right on the debug...
Forum: LIVE PLC Questions And Answers February 14th, 2013, 07:49 AM
Replies: 13
Views: 3,881
Posted By RMA
To set Breakpoints you have to open the block you...

To set Breakpoints you have to open the block you want to work in from the online view of Simatic Manager - opening from the off-line window doesn't work. You also need to be in "Test-Operation" Mode...
Forum: LIVE PLC Questions And Answers February 1st, 2013, 08:23 AM
Replies: 20
Views: 6,016
Posted By RMA
First off, which Version? V2.3 or V3.0? ...

First off, which Version? V2.3 or V3.0?

CoDeSys V3.0 has moved very heavily in the IT direction and has a pretty high learning curve - which is probably why, although it's been on the market for...
Forum: LIVE PLC Questions And Answers January 23rd, 2013, 06:26 AM
Replies: 8
Views: 1,344
Posted By RMA
I've done quite a few water treatment plants over...

I've done quite a few water treatment plants over the years and last year had ten filter presses for a cement factory which had been running on manual control for 5(!) years since the plant swapped...
Forum: LIVE PLC Questions And Answers January 7th, 2013, 07:19 AM
Replies: 15
Views: 2,467
Posted By RMA
As far as I'm aware PCS7 (if that's really what...

As far as I'm aware PCS7 (if that's really what you need) is only available with 400 series H/W and this will not change in the near future. We got our first 1500 a couple of months back (before the...
Forum: LIVE PLC Questions And Answers December 29th, 2012, 10:25 AM
Replies: 3
Views: 928
Posted By RMA
It's quite common to handle alarms as a word or...

It's quite common to handle alarms as a word or double word. Try looking for DB3.DBW0 or DB3.DBD0 in the Cross-reference list.
Forum: LIVE PLC Questions And Answers December 21st, 2012, 07:31 AM
Replies: 14
Views: 2,998
Posted By RMA
I installed 17 ABB Kent K90 SCADA systems for...

I installed 17 ABB Kent K90 SCADA systems for Bayer in Germany in 1980 - 81 and got called back every two or three years whenever they needed something doing. On one of these visits in 1987 I met my...
Forum: LIVE PLC Questions And Answers December 14th, 2012, 07:04 AM
Replies: 10
Views: 958
Posted By RMA
L0.0 TRUE means that either a remote Station has...

L0.0 TRUE means that either a remote Station has been disabled using SFC 12 - OB86_EV_CLASS = 16#33 - or that a rack fault has occurred - OB86_EV_CLASS = 16#39 - and the error type and rack number...
Showing results 1 to 25 of 500

 
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