From Headquarters: VisiLogic
These are application posted by Unitronics.
12 files
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RS485 Break for PCOM
By Alexander
When configuring the COM port to MODBUS the break signal switches the com port to RS232 PCOM and then you are unable to communicate with the PLC.
There is a system bit that turns on when break signal occurs SB 330,331, and 332 for COM port 1, 2, and 3 respectively. You can use this system bit to change the com port setting to RS485 again (since the break signal changes it to RS232 by default).
As you can see in the attached application after the SB 331 for COM 2 rises, we wait 5 seconds and change the com port settings to RS485. The disadvantage of this workaround is that you will need to try establishing the communication 2 times, the first time will change the com port to RS485 but you will receive error message that there is no communication but in the second time you will be able already to communicate. We tested it here using direct connection and also by network ID and it works properly.
For customers that wish to re-establish communications afterwards with the original protocol SB 133 and 136, data transmit and receive can be used to power a timer when not active. After a pre-determined length of time this can re-initialize Modbus communications.
377 downloads
Submitted
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Submitted
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Troubleshoot Communication
By Michael_P
Use to troubleshoot communication between PC and PLC
841 downloads
- troubleshoot
- communications
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Submitted
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UnCpCpl1
By Alexander
This dll file replaces the existing one in V9.5.0 to provide a solution for the error stating Timer has a Coil, but no Contact.
268 downloads
Submitted
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Submitted
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Submitted
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string tools to make file name MMDDhhmm
By Anthony
Here is an example program that takes the RTC to ASCII for the date and the time, Removes the / from the date and the : from the Time, then truncates the strings down to four chars, and then merges the two strings creating your file name.
263 downloads
Submitted
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Updated
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Large Font
By Stein Yair
This is how you use the largest font possible in Vision controllers.
321 downloads
Submitted
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Submitted
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Drop Down List
By Stein Yair
This Application demonstrates how to implement a drop down list
723 downloads
Submitted
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Updated
