Delta Industrial Automation

Tips & Tricks



MODBUS TCP communication between C2000 and AH500 in speed mode

Modbus RTU is a famous layer 2 fieldbus protocol used in wide range of applications since the mid 80’s and it has its encapsulation in a Ethernet frame, on TCP/IP protocol of layer 4 – 3 of OSI model. It can be used on Ethernet networks though a logic IP address, Modbus TCP uses the same function codes of RTU. The main advantage is that it is faster and can be used to send or receive data through any Ethernet device such as switches and routers in different topologies like star, tree or other line topologies using TCP/UDP/IP protocols in Layer 3-4. It can be installed in Standard 10, 100 or 1000 Mbit/s Ethernet technology based on copper cables, fiber optics or wireless standards can be used. Number of stations is almost infinite and it can go up to a speed of 1.5 Kbyte per telegram frame.

The full application note can be found here:


The ISPsoft program used is listed here:










Homing and Positioning with C2000 with S7 1500 / 1200 via Profibus-DP

Positioning is one of the main applications of drive technologies and motion control and  the necessity of positioning in industrial applications is quite wide and there are many applications where positioning could be applied. Some of these applications are a process machine valve, a conveyor, the thread of a ball-screw, a lifter, a drilling machine pattern or a driving cart through an assembly line. Precise positioning (tenths of millimeters for CNC for example) takes into account many other factors and are driven by Servo-controllers like the Delta ASD family servo-drives. However, the  C2000 can be used for a variety of positioning functions with all robustness of a power drive for non-precise application where millimeters or less are not a problem. In this application we are going to learn how to set a drive system with C2000 for positioning, and how to transfer a position command using Profibus-DP from a S7-Siemens PLC with  TIA PORTAL.

You can also download the C2000 fine tuning for this application:


You can also download the S7-1500 fw 1.8 program:


C2000 as a Master for Modbus RTU for P2p using TPEditor for display

MODBUS RTU is a layer 2 network protocol created in the end of the 70’s with the necessity of a fieldbus protocol in industry to transmit and receive data in a simple way through the many devices of a network, in mind. MODBUS RTU uses RS-485 electrical standards and works on a Master-Slave setup, where a master writes and reads data into the registers of the slaves in the network. It has become the default protocol in many industry devices like PLCs, drives, sensors and it is highly used nowadays.

The Delta C2000 also uses MODBUS RTU as a built-in communication protocol. In this application note we are going to learn how to set up a Master – slave configuration, write, read and program the internal PLC with ISPsoft to work on a peer-to-peer (P2P) application with 2 motors, one used as a master and other as a slave. P2P is used when we want both motors to run at the same speed together in an application and monitor their current, its typical use can be applied to pumps, fans, conveyors, rollers. It can be also taken as an alternative for the analog input/output of the drive, when we need more than just 2 measurements. Delta C2000 also permits to create a small Text panel customized display with TPEditor, which we will follow at the end of the chapters.

Download the application note:


Download the ISPsoft interal PLC programs and Drive parameters for VFDsoft.


How to connect C/CP2000 to S7 1500/1200 using Profibus-DP

PROFIBUS DP is a widely used layer 2 industrial network protocol patented by Siemens and a default protocol in many Siemens automation products. In this application note we will learn how to exchange data between Delta C2000 drives and S7 1500 PLC through Profibus-DP Fieldbus. In the first part, the  hardware setup of it will be covered including GSD installation.

After that, we will check how to communicate through PZD (cyclic data), memory addresses, words and bits on both sides of communication with practical examples of C2000 Delta drives.

The example was made with S7 1500 and TIA portal with Delta C2000, but it can surely also be used for the S7 1200 and CP2000.

You can download the application note from here:


Or use the you tutorial:

Blog at

Up ↑