davidtorati Posted January 23, 2006 Report Posted January 23, 2006 Hello I have to add a PLC with Modbus protocol to an HMI application that talks with Siemens PLC's Is there a converter from Modbus to the protocol of Siemens Can you tell me what kind of communication protocol Siemes is using. Thanks David Quote
jacekd Posted January 24, 2006 Report Posted January 24, 2006 Siemens PLCs "talk" many protocols. You have to be more specific to let someone help you. Write what type of PLC, HMI, how they are connected. Quote
davidtorati Posted January 24, 2006 Author Report Posted January 24, 2006 Hi The type of Siemens PLC is S7-200 cpu 224 The HMI is Wizcon of Axeda company Quote
khekd Posted May 2, 2006 Report Posted May 2, 2006 The S7-200 can talk Modbus master and that code can be found on the forum. The PLC can also talk as a slave which you can purchase the Modbus library for MicroWIN for it. Although, I would see if your HMI can talk PPI because that will be a lot less engineering than creating code in the PLC just to talk to the HMI. Good luck! Quote
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