Connection with Mettler Toledo scale and Serial FI 820F-Z
I have a problem with the connection Mettler Toledo scale and Serial FI 820F-Z using RS232. First of all I can see that the comunication scale to FI820F-Z works, because the LEDs Rxd0 and TxD0 blink but Control Builder F does not show RxD, only TxD ist counting and I get an CRC what could be the Problem?
Lots of possibilities data not recieved.Check few things,
1.Are you using cable TK 821F and TB 870F to connect between device and FI 820F ?
2.On FI 820F deactivate termination jumper, in image below it show termination for rs422 or 485. but for rs 232 remove it or plug vertically.
3.If you are using cable and TB then check you have proper connection from TB to device.
4.If connection are proper, check interface module module parameters in hw tree.Check that communication parameters are matching both the side.
5.If that is ok check in project tree in function block proper interface block is assigned.
6.if that is also ok, check addressing.
If not resolved reply back with error pin code and in hw tree if you click on interface block it shows some diag details in lower pen.
which Freelance version you are using? attach here with piece of manual related to this topic, find detail info in document number "3BDD012501 M&I - AC 800F Controller" for version 2013 but it's things are same in all version.
Thank you for the help! I switched from Master to Slave, because the scale is on automatical sending I can see the RxD running on the FI 820F-Z card and in Control Builder F but I can not see the Values. I attached the Program steps below one showes it as Master and the otherone as Slave. I realy dont know why I can not see the values because I connected it with the card in Hardwareconf and I also can see the Rx when I use the View building block.
Check cables as Gargav said.
See Rx and tx cross.
I had problens using "autorequest" so I made up a clock to request the data. You may try it too.
Did you configured the hardware tree? You must enable the freelance port and configure all rs232 param.
Let us know the results. I may take some printscreens of my configuration and send to you if you do not have success.