This purpose of this technical note is to discuss Industrial Ethernet integration options for Siemens S5 PLCs with DeltaV.
Control Technology, Inc., makes an Ethernet Interface Module for the Simatic 505 controllers. The CTI 2572-A card allows effective Modbus TCP/IP communications with Modbus master devices like the DeltaV Virtual IO Module Network Gateway. Geoff Nash, Senior Software Developer at MYNAH, reviewed the CTI 2572-A manual and had the following comments:
The ModbusTCP server opens in this system starts automatically. Reads and writes use the standard ModbusTCP functions; read (coil, input, holding or input register), write (coil or register). The Modbus VIM should have no trouble accessing the registers. All register access are as 16-bit reads (either 16-bit registers or groups of 16 coils or inputs). 100 register (signed or unsigned) datasets can be used to read blocks of information. For coils and inputs, a maximum of 1600 bits can be read at a time (using a unsigned 16-bit dataset) or 96 bits using a discrete dataset.
The DeltaV Virtual I/O Module (VIM) provides a native DeltaV I/O interface to open plant Ethernet networks and devices that use ModbusTCP (RTU TCP, RTU via TCP and RTU via UDP) protocol.
|IOD-4101||ModbusTCP Driver for DeltaV Virtual I/O Module|
MYNAH Technologies LLC
390 South Woods Mill Road, Suite 100
Chesterfield, MO 63017 USA
© MYNAH Technologies 2012 - 2021. All rights reserved.
Designs are marks of MYNAH Technologies, Emerson Process Management, DeltaV, and the DeltaV design are marks of one of the Emerson Process Management of companies. All other marks are property of their respective owners. The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warrantees or guarantees, expressed or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and conditions, which are available on request. We reserve the right to modify or improve the design or specification of such products at any time without notice.
While this information is presented in good faith and believed to be accurate, Mynah Technologies does not guarantee satisfactory results from reliance upon such information. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding the performance, merchantability, fitness or any other matter with respect to the products, nor as a recommendation to use any product or process in conflict with any patent. Mynah Technologies reserves the right, without notice, to alter or improve the designs or specifications of the products described herein.