Joe Tauser

This is a fuzzy area for me, too. If you look at the Help you'll see that the Panel IP is the one that the Webserver actually uses. The CPU IP certainly isn't necessary for RS485 or CANbus, but I don't know about VNC. Have you tried to connect via a VNC client on another computer and changed the addresses on the PLC and the Panel? This would be a simple experiment. Joe T.

The E3XB will certainly work. The high speed counters are grouped in pairs for connection to either a single high speed input or a quadrature encoder. You'll want to configure the HSC tab I0,1 for a straight High Speed counter with no reset. Make sure you use an ML as the register. You don't need to connect a prox to I1 for frequency. If you configure a frequency register it will measure the frequency of I0. If the Frequency input is different than the sensor you're using to count then you'll need to connected it to a different HSC pair. Joe T.

I didn't even think to ask about the Gateway address. I always set this to the router's address because that's where the device links to the outside world. You need to set the Gateway address on both the Panel and the CPU to your router's address, if you haven't already. Joe T.

There is a bug I have personally verified in the UniStream tag import function. It has been duplicated and referred to the brain trust in R&D. So they're working on it now. If you're in a really big hurry you'll have to re-type the descriptors. Joe T.

You've done all the right testing. Creator input? Joe T.

You mis-understand Aus's question - it's not the Admin user. You must modify the Properties of Visilogic.exe to "Run As Admin". Cam is right about the Upload vs. Com error. You didn't answer whether you have a dedicated serial port or a USB->Serial converter. Joe T.

Probably an dumb question - does this computer have the Visilogic .exe file set to run as administrator and have you updated the OS on other PLCs with it? Joe T.

Flex's suggestion triggered another thought - do you have a native serial port on your computer? If not, what kind of converter are you using? I've had problems with converters that don't use the Prolific PL2303 chipset. Joe T.

If you really made the cable correctly and can't upload it, it's not burned. The normal upload baud rate is 115.2K. Joe T.

You can't upload from a V570 or any other Vision unless the original program was "burned for upload". It's a security thing. Do you have a copy of the program? Joe T.

Hopefully one of the Creators will weigh in on this. It does sound like a bug in the block. Joe T.

Comcast has to assign you a static IP visible to the outside world that you can port forward in your router to the PLC. Joe T.

Try dialing the format down to five or four digits and feeding it with an MI only. Six digits may be telling the underlying code that you have a 32 bit number. Joe T.

If you notice the incorrect numbers are > 32768, so the SMS block is interpreting them incorrectly as unsigned integers. It's using the sign bit as part of the value. Can you post your code? Joe T.

How did you finally solve the problem? Joe T.

You should be able to run at 115K. That's the speed used when programming via the serial port. Joe T.

Yes - you need a driver board that has a Step input. Joe T.

I actually ran into this on a test fixture designed for vacuum cleaners. Moisture content of the air was part of the power calculation. Here is a paper on the equations needed to do what you want: http://maxwellsci.com/print/rjaset/v6-2984-2987.pdf Look through the equations and you see exponents are involved in getting the saturation vapor pressure. This math is beyond what a Jazz is designed to do. Floating points are needed. Unless you're really a glutton for punishment. Google "Taylor Series Expansion of Exponential Functions", which can probably be done in a Jazz. Many, many moons ago I did this in a Siemens PLC to calculate cosine. However, if you ask me to provide an example of how to do a Taylor Series in a Jazz I will reach through the Internet and choke you. Joe T.

Bump. Creators - Vector->Struct doesn't list MF as a data source. Is this coming back? Joe T.

Use two compare blocks in series or a within range block to only activate the linearization block when it is in your range. If below the range, store 0 to the analog output. If above the range, store 4095 to it. Joe T.

Are you trying control humidity using a wet bulb / dry bulb configuration? If so, I'd advise against it. A humidity sensor is much easier. Joe T.

Have you drawn a schematic of what you've done so far? Which I/O module do you have for your V1210? Joe T.

Try reloading the OS and then load a blank program to get the PLC back to a known state. Joe T.

First, what does 0-10V represent on your sensor? 0-50 degrees? That should be part of the sensor spec, not something you arbitrarily assign. Two degrees is not much of a span for a 0-100% output, but it's your system and you can do what you want. Once you have an accurate representation of your temperature you're going to have to use some compare blocks to manually manipulate a linearization block to create your 0-100 value. Take a whack at it and post your code. Joe T.

I'm using Visilogic 9.8.31. I'm running into the same problem, but Vector->Struct no longer allows an MF data type as a source address. Did this disappear? Joe T.