S
Hi All
I Need some clarification in MODBUS Master OPC server.
In MODBUS Slave device I am creating an event record buffer of size for 100 records, where I am storing status of an event in 2 bytes (Input Register 3X) & Time stamp data in 8 bytes for each record in addition to.
I am planning to use one of MODBUS Master OPC server Gateways available from some companies.
My requirement is I have to use modem dialup (Telephone line) facility in MODBUS OPC Server & I am connecting to modem slave device once in 30 minutes & it will remain online for next 5 minutes (since I am using telephone line modem dailup, I cannot keep master & slave devices online continuously).
But I find that, All OPC servers can be configured in terms of tags for each events & I can get the current status of each tag only when I am connecting to modbus slave device.
Can somebody suggest MODBUS (SERIAL) OPC server that has feature such that I can retrive that event buffer data? Also I found that many MODBUS opc servers does not support event logging options (some servers have this option but only Events that occur within the server can be stored to disk) where I can log the event data (INPUT register 3X) which I receive from remote MODBUS Slave device.
rgds
sukumar
I Need some clarification in MODBUS Master OPC server.
In MODBUS Slave device I am creating an event record buffer of size for 100 records, where I am storing status of an event in 2 bytes (Input Register 3X) & Time stamp data in 8 bytes for each record in addition to.
I am planning to use one of MODBUS Master OPC server Gateways available from some companies.
My requirement is I have to use modem dialup (Telephone line) facility in MODBUS OPC Server & I am connecting to modem slave device once in 30 minutes & it will remain online for next 5 minutes (since I am using telephone line modem dailup, I cannot keep master & slave devices online continuously).
But I find that, All OPC servers can be configured in terms of tags for each events & I can get the current status of each tag only when I am connecting to modbus slave device.
Can somebody suggest MODBUS (SERIAL) OPC server that has feature such that I can retrive that event buffer data? Also I found that many MODBUS opc servers does not support event logging options (some servers have this option but only Events that occur within the server can be stored to disk) where I can log the event data (INPUT register 3X) which I receive from remote MODBUS Slave device.
rgds
sukumar