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When I increase the ReadData or WriteData array sizes in my program, all of the configuration parameter values go to 0.
Viewed 1 times since Tue, Nov 28, 2006
When controller tag array sizes are changed in the ControlLogix platform, RSLogix5000 re-initializes all of the tags within that data type. This sets all values to 0 in all tags within that group. Before changing any controller tag array sizes, the... Read More
Baud rate entries greater than 32767 in ProSoft Modules
Viewed 1 times since Tue, Nov 28, 2006
Since RSLogix uses signed integers, the highest positive value that can be entered is 32767.  To avoid this issue, when specifying higher baud rates, Prosoft modules only require the first 3 digits of the baud rate. e.g., to enter a... Read More
Where are the on-board jumper positions defined for my MVI module?
Viewed 1 times since Tue, Nov 28, 2006
On bottom of the circuit board for any MVI products, you' ll find three jumper banks: COM1, COM2, and Setup. Each jumper position is labeled 232, 422 and 485. Read More
Do the serial ports on my MVI56 module provide any electrical isolation?
Viewed 1 times since Tue, Nov 28, 2006
The two application serial ports provide 1000 volts of electrical isolation between the port and the ControlLogix backplane. The debug/configuration port provides no electrical isolation. Note: None of the ports provide any electrical isolation... Read More
Which of your products support RS-485 serial protocols?
Viewed 1 times since Wed, Feb 6, 2008
Almost all ProSoft solutions for serial based protocols support RS-232C, RS-485 and RS-422 electrical interface types, but equally important is the 'language' or application layer protocol needed for your application. ProSoft... Read More
How do I convert ASCII data to a Floating-Point value in a Logix based processor?
Viewed 1 times since Tue, Nov 28, 2006
ASCII data acquired by the GSC module will be stored in the ReadString SINT (8 bit integer) array. This data can by copied to a string type tag, and then converted to a real (floating-point) value using the RSLogix 5000 STOR function. Read More
How do I get my Symbol barcode scanner to work with ProSoft MVIxx-GSC or ProLinx ASCII solutions?
Viewed 1 times since Wed, Feb 6, 2008
The RS-232 serial ports on most Symbol barcode scanners are RS-232TTL ports. RS-232TTL signal levels are lower than those of RS-232C ports, like the ones used in ProSoft solutions. Therefore, without some kind of adapter to boost the RS-232TTL... Read More