Codesys 2.3 Library

CODESYS
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1

I have a controller 750-8208 with programming software codesys v2.3.9.66. I want to read modbus tcp data through FB. When I load the library i.e. ModbusEthernet_04.lib, the program shows error. Is there a way to upgrade this library in codesys 2.3 or is there any other library through which i can read data.

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2

I believe you need to add the Ethernet.lib library to your project. On my system, that library is found in the “32-Bit” folder inside my 2.3 library repository.

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3

yes issue resolved thankyou.

4

@AdamReeve @pp0098 please be aware that libraries in the 32-bit folder may not work for the PFC200.
Instead of the ModbusEthernet_04.lib i would recommend the WagoLibModbus_IP_01.lib

5

Thanks for the clarification.
Does anyone know up to which version of the PFC200 firmware the 32-bit Ethernet.lib is supported and therefore functional?
The WagoLibModbus_IP_01.lib does not seem to allow the implementation of a Modbus server/slave, but only a client/master.

6

The Ethernet lib is not compatible with the PFC200 at all.
The naming of Master/Slave is only for Modbus serial where only one Master is possible.
On the Ethernet side you should use Client/Server. because more than one Client can communicate with the same Server (last command win).

On this side, WAGO don’t have any Server(slave) function block for codesys 2.3 using Modbus Ethernet because it is already defined in the Firmware.

For the Client(Master) on a PFC200 only the WagoLibModbus_IP_01.lib will work without problem.

7

Hi, found your reply on similar topic, could you please answer this post: