The following page displays the “ActivationKey” alphanumeric string to be entered into the FX-3000-C field. NOTE! The activation may be subject of billing. Apply for the login and password at New activations page: Įnter the product code from the Modbus Server component of “Activation” Settings page, as well as project / device related information, then press the 'ORDER' button : NOTE! You shall sign in to the service in order to ACTIVATe MODBUS SERVER features. The Modbus Server features must be activated from the Fidelix Product Activation page : If at your FX-series CPU is no product activation for the Modbus Server feature, Settings -> Activations page will look like following: Apply for the login and password at Activating Modbus server features COMMISIONINGĬheck if your CPU has internal Fidelix software version supporting Modbus Server feature:Ĭheck the latest software versions and drivers here: Read carefully before starting Modbus network planning. NOTE! MODBUS SERVER has certain limitations in register and communication settings.

It allows FX-series substation to respond to remote Modbus TCP senders like SCADA systems or AHU units and transfer own registers over the LAN IP networks. How to activate, commission and use Modbus TCP server-slave functionality General informationįidelix FX2030, FX2030A, FX-SPIDER, FX3000-C and the new FX-SPIDER 40/10 substation CPUs may be updated with new software version 12.30.06 which supports a Modbus TCP/IP server functionality. Important note: once you flag Modbus TCP and save the configuration, you should powerup the PLC again.Modbus TCP-IP Server-Slave commissioning User manual Read/Write registers are called Holding Registers. Read Only registers are called Input Registers.

2 are readable and writable (for bits and integers).2 are read-only (for bits and integers).Every slave has a “Node address”, so the master can send packet to a single slave. The only device that can start a communication is the master and there can be only one master (usually a supervisor) and as many slave as you want. Modbus RTU architecture is master – slave (master is the client, slave is the server). Modbus TCP devices can be both client-server and the protocol is multi-master, so every device can start the communication. Modbus TCP architecture is client – server (like for websites, you with the browser are the client that ask information to the server, and the server reply). Modbus protocol can be used with serial cables (Modbus RTU: RS232 or RS485) or with ethernet cable(Modbus TCP). To configure the Modbus communication you need to know at least the basic information about Modbus protocol. This is a powerful feature and with this post i explain how to enable and how to use it. The latest PLC Allen Bradley Micrologix 1400 is provided with Modbus TCP and RTU.

Modbus address hmi register