K
Dear friends,
I am using RS485 network based Data acquisition system. The Architecture of the System is like that. There are so many RS485 based Modbus slave connected in daisy chain network in 10 RS485 Loops. all Slave devices are Connected to Intouch SCADA server through Moxa make Modbus RTU to Modbus TcP/IP Converter/Gateway. SCADA Server Accessing all device data on Modbus TCP Network by MBENET (Modbus TCP/IP) I/O Server.
The Main Problem with this architecture is that i need to configure N Nos of items (Unique item no for each Modbus Slave) in MBENET Server. when i add more devices, MBENET I/O server Performance get suffered.
I just want to inquiry that, whether there is any device available, which will be connected to all Modbus SLAVEs on RS485 Network and and acquire the data from all device in Periodic manner (I/O scanning) and store or Map these data on Internal Register (Modbus R/W register), from where SCADA Modbus Master will pickup all data through MBENET I/O Server. Hence MBEnet I/O server will see only one Modbus Slave device and no need to Configure so many items name in MBENET Server.
Kindly Note that I have no problem with amount of Data accessed by MBENet Server, because SCADA Server only reads some 2-3 analog Parameters and 4-5 Discrete Parameters at a time from each Modbus Slave device. the problem with I/O scanning of so many Devices by a single MBENet Server. the one more problem with Modbus slave devices that these device are preconfigured only for baudrate 9600 b/s and can not be changed. i have Configured and another MBEnet I/O server to distributed the Load and got some improvement in Performance, but still as other I/O server already Having some Load and Limited No of Licenses Availability for SCADA Server. i can not Configure More dedicated I/O Server for data acquisition.
Please provide any solution for this Problem or Suggest me any device available in Market which can fulfil my Requirements.
I am using RS485 network based Data acquisition system. The Architecture of the System is like that. There are so many RS485 based Modbus slave connected in daisy chain network in 10 RS485 Loops. all Slave devices are Connected to Intouch SCADA server through Moxa make Modbus RTU to Modbus TcP/IP Converter/Gateway. SCADA Server Accessing all device data on Modbus TCP Network by MBENET (Modbus TCP/IP) I/O Server.
The Main Problem with this architecture is that i need to configure N Nos of items (Unique item no for each Modbus Slave) in MBENET Server. when i add more devices, MBENET I/O server Performance get suffered.
I just want to inquiry that, whether there is any device available, which will be connected to all Modbus SLAVEs on RS485 Network and and acquire the data from all device in Periodic manner (I/O scanning) and store or Map these data on Internal Register (Modbus R/W register), from where SCADA Modbus Master will pickup all data through MBENET I/O Server. Hence MBEnet I/O server will see only one Modbus Slave device and no need to Configure so many items name in MBENET Server.
Kindly Note that I have no problem with amount of Data accessed by MBENet Server, because SCADA Server only reads some 2-3 analog Parameters and 4-5 Discrete Parameters at a time from each Modbus Slave device. the problem with I/O scanning of so many Devices by a single MBENet Server. the one more problem with Modbus slave devices that these device are preconfigured only for baudrate 9600 b/s and can not be changed. i have Configured and another MBEnet I/O server to distributed the Load and got some improvement in Performance, but still as other I/O server already Having some Load and Limited No of Licenses Availability for SCADA Server. i can not Configure More dedicated I/O Server for data acquisition.
Please provide any solution for this Problem or Suggest me any device available in Market which can fulfil my Requirements.