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We have two GE make Gas Turbines in our plant. Earlier both Gas Turbines were controlled by Mark IV controller. These two controllers were interfaced with our Plant DCS (Honeywell make TDC 3000) through Hiway Gateway. Both controller outputs were connected to Honeywell PLCG card (Port-1 for GTG1 & Port-2 for GTG2). Here DCS is working as Modbus Master and Mark IV controller as a slave. Protocol used for this communication was Modicon M584 through RS232 port. Recently we upgraded one of our Mark IV controllers to Mark VIe controller and other is running on old Mark-IV controller. So in PLCG card one port is connected to Mark-IV and other is Mark-Vie.
Mark Vie control system working on Ethernet protocol, so we use one Ethernet to Rs232 converter (Make-Lantronix, Model-UDS/Xpress DR IAP) b/w Mark Vie & DCS. But we are not able to established communications. We used Modscan32 software to test connection on Laptop and find information is coming from both side i.e. from Mark Vie and DCS separately but when we connect both end in converter we find communication fail. We checked this converter and found Ok. We also checked configuration (baud rate 9600, Stop bit 1, Parity- Even, Byte-8). We have only configured Analog and Digital points.
Please if anyone have such kind of experience please give me some idea to resolve it.
Mark Vie control system working on Ethernet protocol, so we use one Ethernet to Rs232 converter (Make-Lantronix, Model-UDS/Xpress DR IAP) b/w Mark Vie & DCS. But we are not able to established communications. We used Modscan32 software to test connection on Laptop and find information is coming from both side i.e. from Mark Vie and DCS separately but when we connect both end in converter we find communication fail. We checked this converter and found Ok. We also checked configuration (baud rate 9600, Stop bit 1, Parity- Even, Byte-8). We have only configured Analog and Digital points.
Please if anyone have such kind of experience please give me some idea to resolve it.