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OP17 again...

Created by: IvoIvic at: 10/19/2012 12:24 PM (6 Replies)

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10/19/2012 12:24 PM	Rate (0)
IvoIvic Posts: 35 Rating: (1)	I have some new problem with OP17...Please help. 1) It's about ALARM MESSAGE. When I go to AREA POINTERS to write down alarm message I can put it in form: MW (which is ok and working correctly) and DB1.DBW0 form (for example).... I don't know what to do with that DB1.DBW0. I can't use it in PLC program. Or can I? 2) Is there a way to call some screen directly from PLC? Like if for eqample some output Q2.3(or whatever) is 1 a screen opens in my OP17.... I'm new in PLC, I know some of my questions are stupid but please help. Thanks....
IvoIvic Posts: 35 Rating: (1)
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10/19/2012 1:36 PM	Rate (0)
Tweety Posts: 3037 Rating: (192)	Hello Ivolvic, You can use the PLC job 51 for changing screensfrom the plc. See B-9 Communication Tweety
Tweety Posts: 3037 Rating: (192)
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10/19/2012 2:51 PM	Rate (1)
dchartier Grandmaster Joined: 9/27/2006 Last visit: 11/18/2024 Posts: 12294 Rating: (2691)	Hello lvolvic; In reply to question number 1): Area pointers are "bit maps" that you create in the PLC; each bit in the area pointer for alarm messages for example is linked to a message defined in the OP 17. This is how the Protool manual (for the OP 17) explains it: HMI ProTool How to configure text-based units 4.7 Available area pointers: ... Alarm messages You can configure an alarm message for each bit in this data area. The bits are assigned to the message numbers in ascending order.As soon as the PLC sets a bit in this data area, the operating unit recognizes that the assigned alarm message has "arrived". Conversely, the operating unit interprets the message as "departed" after the bit is reset on the PLC. If you define the Alarm messagesarea pointer as DB1.DBW0 in your PLC(as in your example) you are reserving 16 messages, each linked to a bit in that word (DB1.DBX0.0 to DB1.DBX1.7). When you set bit DB1.DBX0.0 in your PLC program, alarmmessage number 1 defined in the OP 17 is active; when you reset the same bit the message number 1 is not active. When you set bit DB1.DBX0.1 in your PLC program, alarmmessage number2 defined in the OP 17 is active; when you reset the same bit the message number2 is not active. And so on. Hope this helps, Daniel Chartier
	Last edited by: dchartier at: 10/19/2012 2:53 PM
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This contribution was helpful to 1 thankful Users IvoIvic

10/19/2012 3:31 PM	Rate (1)
Aliende Posts: 18 Rating: (3)	Hello lvolvic; Like Daniel write you have 16 alarms message in one word. I think the first message is linked to bit DBX 1.0 and eight message to bit DBX0.0. Then 17 is DBX3.0... Best regards Ales
Aliende Posts: 18 Rating: (3)
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This contribution was helpful to 2 thankful Users dchartier IvoIvic

10/19/2012 4:04 PM	Rate (1)
dchartier Grandmaster Joined: 9/27/2006 Last visit: 11/18/2024 Posts: 12294 Rating: (2691)	Hello Aliende; Good point, thanks. It has been many years since I worked with a Protool project and Area pointers, but I think you might be right. I do seem to recall there was an inversion of the area pointer bytes, so DB1.DBX1.0-7 would activate themessages 1 to 8, and DB1.DBX0.0-7 would activate messages 9 to 16 (if the Alarm Messages area pointer is defined with DB1.DBW0). Can anyone from the forum confirm this? If not, the easiest would be to make a simple test, creating alarm messages with simple numeral texts ("Alarm number 1" to "Alarm number 16") in the OP 17 and seing which one is activated by which PLC bit (use the VAT table for this test, it is simplest this way). Hope this helps, Daniel Chartier

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This contribution was helpful to 1 thankful Users IvoIvic

10/19/2012 4:22 PM	Rate (1)
BeVee Gold Member Joined: 7/18/2011 Last visit: 10/14/2024 Posts: 521 Rating: (91)	dchartier Hello Aliende; Good point, thanks. It has been many years since I worked with a Protool project and Area pointers, but I think you might be right. I do seem to recall there was an inversion of the area pointer bytes, so DB1.DBX1.0-7 would activate themessages 1 to 8, and DB1.DBX0.0-7 would activate messages 9 to 16 (if the Alarm Messages area pointer is defined with DB1.DBW0). Can anyone from the forum confirm this? If not, the easiest would be to make a simple test, creating alarm messages with simple numeral texts ("Alarm number 1" to "Alarm number 16") in the OP 17 and seing which one is activated by which PLC bit (use the VAT table for this test, it is simplest this way). Hope this helps, Daniel Chartier Hi Aliende, I can confirm the inversion. You can always check which bit activates an alarm message. Position the cursor on an alarmmessage and in the lower right corner of the status bar you can see which bit activates this message. If you select a message outside the alarm areapointer you will get the message 'No area pointer there'. Kind regards, BV

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This contribution was helpful to 3 thankful Users dchartier Marcjan IvoIvic

10/22/2012 8:37 AM	Rate (0)
IvoIvic Posts: 35 Rating: (1)	Wow! You guys are the best! I didn't get such a good explanation in a long time! Everything works great! I can't thank you enough. Special thanks to Daniel!
IvoIvic Posts: 35 Rating: (1)
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