Product category:
Process Simulation
News Release from: Mynah Technologies | Subject: Mynah Modbus Drivers
Edited by the Processingtalk Editorial
Team on 28 December 2006
Implementation of Modbus serial and
TCP/IP
New Modbus Drivers provide high performance and greater security for integrating plant floor areas at a low cost
Comprehensive implementation of Modbus serial and TCP /IP provides high performance and greater security for integrating plant floor areas at a low cost The new Mynah Modbus Drivers reduce integration costs, complexity, and system lifecycle by allowing greater connectivity to more devices
This article was originally published on Processingtalk on 10 Feb 2005 at 8.00am (UK)
Related stories
Simulation Software for Schneider Electric Unity
Mynah Technologies, a division of Experitec, announces the release of an IO and Process Simulation interface for Schneider Electric Unity Software and PLC Hardware, the mimic Unity Driver Pack
Powerful Ethernet solutions for digital plants
Mynah Technologies has released the Ethernet/IP Driver for the Emerson DeltaV Virtual IO Module, allowing high-speed, high-performance Ethernet integration from DeltaV controllers to Rockwell PLCs
The Mynah Modbus Drivers also provide enhanced product control and quality due to process control functionality and speed of response.
Lastly, Mynah Modbus Drivers reduce downtime, providing a more secure control system and improved plant safety due to enhanced redundancy.
The Mynah Enhanced Modbus Driver (IOD-1134, previously referred to as the Inverted Floating Point Modbus Driver) now supports absolute table indexing and user-configurable floating point byte order.
Further reading
MiMiC for Unicracker low sulphur diesel project
Flint Hills Resources will be using the MiMiC Process Simulation Software and Emerson DeltaV Simulate for the operator training platform for the Unicracker on their ultra low sulphur diesel project
MiMiC Process Simulation Software for training
Motiva in Louisiana implements Mynah Technologies MiMiC simulation software for multiple refinery operator training systems, to save time and money
MiMiC solutions for refinery units
Refineries are choosing MiMiC because it saves money, trains operators better, and allows off-line testing: MiMiC is easy to use and flexible - users can quickly build realistic models of processes
Absolute table indexing allows the user to access any address space from the register start address to the offset of 65535.
For example, if holding registers start at 400,000, register users can access up to 465,535.
User-configurable floating point byte order allows users to characterise floating point byte order for the most significant and least significant byte.
The new release of the Modbus TCP /IP Driver (IOD-4101) reduces integration costs, complexity, and system lifecycle due to greater connectivity to more devices.
It supports the new features of the Enhanced Modbus Driver (IOD-4101) as described above.
It also supports all three variants of the Modbus TCP /IP protocol on the same VIM and to the same device (if required) including: RTU TCP (Open Modbus messaging using TCP /IP), RTU via TCP (Modbus encapsulated in TCP /IP messages), and RTU via UDP (Modbus encapsulated in UDP broadcast messages.) The new Mynah release of the Modbus TCP/IP Driver also supports multiple masters and multiple slaves.
In Modbus Master Mode, 32 slaves are supported per master.
In Modbus Master and Slave Mode, 16 slaves per master and 16 masters per slave are supported.
In Redundant Master Mode, 16 slaves are supported by the master.
The Modbus TCP /IP Driver provides seamless support of Modbus Gateways, including Ethernet to Serial and Ethernet to ModbusPlus.
Up to 16 Modbus addresses can be associated with a single TCP /IP address.
Additionally, the Driver supports all commonly used Modbus commands including:.
* Class 0 Read Multiple Registers (3).
* Write Multiple Registers (16) Class 1.
* Read Coils (1).
* Read Input Discretes(2).
* Read Input Registers (4).
* Write Coil (5).
* Write Single Register (6) Class 2.
* Force Multiple Coils (15).
* Machine/vendor/network specific functions.
* Diagnostics(15).
The Mynah new Modbus Drivers also provide enhanced product control and quality due to process control functionality and speed of response.
The Modbus Drivers support up to 16 simultaneous messages per device in Master or Slave mode.
The user-configurable periodic output writes only upon change of state.
The Drivers also provide configurable dataset level scan timing control.
Lastly, Mynah Modbus Drivers reduce downtime, providing a more secure control system and improved plant safety due to enhanced redundancy.
Enhanced features for redundant installations include three types of user-configurable pings: Modbus FNS, user-designated Ping dataset, and Network (ICMP) Ping.
The Drivers allow for Active, Standby switchover control from DeltaV function blocks.
In addition, the Drivers have user-configurable redundancy controls for simplex devices, redundant devices with switching IP address, and redundant devices with non-switching IP.
In summary, the MYNAH development team has enhanced the Modbus Drivers to be high-performing, low-cost solutions for integrating plant floor areas.
The Modbus Drivers reduce cost, complexity, and downtime.
They also provide greater product control, providing a more secure control system with improved plant safety.
• Mynah Technologies: contact details and other news
• Email this article to a colleague
• Register for the free Processingtalk email newsletter
• Processingtalk Home Page
Search the Pro-Talk network of sites
