Jhav

Flex, thank you that does clear up a lot. this is a new scale we are using. One Indicator with multiple scales so it had me kind of mixed up. we normally use one scale head per device and everything gets it own set up. thank you for taking the time to work me through that.

im sending 2 different commands one command for each scale indicator. i though i would have to close the socket when and give it time to rest between switching commands ?

Flex, I was looking at it as one device. A Multi scale indicator talking through one modbus card using the the same ip just switching over write commands to choose which scale to talk to, but im just going to use another Modbus connection which requires purchasing another modbus card.

Flex727, thank you that is the obvious solution. for some reason since they share the same IP address i had it in my head that i had to use the same socket, and i would just send 2 different commands. i will write it with 2 sockets.

All, I have one multiscale indicator that has 2 scales that i am trying to read through one Modbus connection by switching the command number to witch scale i need. the problem is i connect, write, and read the command for scale one, then i close the connection to the socket and let it cool for .4 seconds ive even tried up to 1 sec. then i connect and do the same for scale 2. they both are reading and writing to separate vectors and addresses but i get a bleed over reading from scale one onto the scale two and vice versa. i do not know how to resolve the issue. ive set is to where the read and write command are disconnected when the opposite scale is writing and reading. I've put program below, any advice would be appreciated. scale switching.vlp

Ausman, thank you, that's why i like this forum all the shared ideas.

Joe, Thank you i will dive into that.

Ausman, this is just for trade shows, to show off our ON SITE ACT machine. what i made for it shows the human error when trying to fill something with foam and how much money it will cost the company. also it is used to grab attention, be interactive, and network with future costumers by gathering emails. but i was wanting a leader board.

All, this is a little unusual but i am asking for help on the best way to create a leader board. i have made a game of sorts for our marketing team that allows them to take a display (vision 1210) and foam dispensing gun and hook them up together. the goal to try to hold the trigger of the gun for exactly 3 seconds, and you get 3 attempts, and then it averages the shots which you want to get as close to a 3 second average as possible. if you go over it tells you how much you over shot and how much money that will equal in wasted product, and if you go under it tells you that you have under shot and and that will cost you because you have to scrap what ever you are filling with foam. Then it pops up with a screen that asks for your email witch saves it to a data table. They want a leader for who gets the closest to the 3 second shot. You could go over or under does not matter just who ever is closest. I'm looking for help on the easiest way to preform that task. Thank you

Gabriel, i found it i used 5 as my write address and had to remove a byte swap on the scale head itself. thank you for the help.

Gabriel, I changed the start address to 259 and am using a RHR#3 , when i keep the write address as 40001 it errors out and cannot establish connection. ive changed to 1 and it does not error out but i do not get anything when i read the scale. what should my write address be?

All, im setting up communication with a new scale head using Modbus ip. i am able to connect the plc and the scale head but am having trouble when using the Preset holding registers to send a command read the weight and the Read input registers to read the values from the scale. I'm trying to use command # 0 . from the command list and using the Register address as the start of the vectors but it is not working so I'm leaning toward it is not right. if any one could point me in the right direction i would greatly appreciate it.

Ausman, i contacted support they were able to remove the security items that were not allowing it to open. Thank you for the reply though.

All, has anyone else came across this error 20101205 when i try to open my project i get this error and then it just opens up a blank project.