Error 6201 occurred at ModBusVIEWoSL.lvlib:MBV_Emission-Reception.vi

[ckkeong91]

Hi experts!

I am had a problem while trying to run the example for GModbus over serial line. I followed the instruction by:

1. Run the SimpleModBusSlave.vi

2. Run the SimpleModBusClient.vi (**********MISSING*******)

3. Run the SimpleModBusMaster.vi (Try my luck ====> ERROR)

I know missing the the SimpleModBusClient.vi is the cause, but where can I locate it?

The error when SimpleModBussMaster.vi ran:

Error 6201 occured at ModBusVIEWoSL.lvlib: MBV_Emission-Reception.vi

Possible reason(s): waiting data for request 1 to slave address 1

Complete call chain:

     ModBusVIEWoSL.lvlib:MBV_Emission-Reception.vi

     ModBusVIEWoSL.lvlib:MBV_lecNBitsSortie(1).vi

     SimpleModBusMaster.vi

Thanks!!

[Olivier-JOURDAN]

Hello ckkeong91,

Simple ModBusClient is missing because it's part of the GModBus over TCP toolkit.

If you want to test GModBus over serial line, you need the foolowing configuration :

• 2 computers linked by serial line

or

• 1 computer with 2 serial ports

or

• 1 computer with 2 virtual port

When this is set up run a slave ("listening" on com port X) and use a master ("writing" on com port Y).

If I can be of any other assistance, please let me know and I will be happy to help.

Have a great day.

PS : could point me the instruction you are referring to in your message ?