defcon.klaxon
Lifetime Supporting Member
GE RX3i CPE305 serial port configured as "RTU Slave", trying to find address info
Hi guys,
I'm working on a system with a GE CPE305 and the serial port is set up as a "RTU Slave"; from reading the documentation, this means the port is, "Reserved for the exclusive use of the Modbus RTU Slave protocol". This port is connected to a Red Lion DSPLE data converter which is accessing the CPE305 as a MODBUS master. This DSPLE is connected to the internet, and the data is provided to an HMI in the client's office.
Looking for further information about how this port actually works, I've come up lacking. I am trying to find info about how this port is going to work for accessing the different register addresses. Basically I'm trying to figure out how various registers are "converted" for Modbus RTU when there doesn't seem to be any actual configuration going on in PME. So basically, how would I access %R registers versus %M or %I or %Q, if that makes sense. I'll keep searching but was hoping someone might be able to provide some insight. Even reading through the 305 manual, it doesn't seem to explicitly describe how this works.
Hi guys,
I'm working on a system with a GE CPE305 and the serial port is set up as a "RTU Slave"; from reading the documentation, this means the port is, "Reserved for the exclusive use of the Modbus RTU Slave protocol". This port is connected to a Red Lion DSPLE data converter which is accessing the CPE305 as a MODBUS master. This DSPLE is connected to the internet, and the data is provided to an HMI in the client's office.
Looking for further information about how this port actually works, I've come up lacking. I am trying to find info about how this port is going to work for accessing the different register addresses. Basically I'm trying to figure out how various registers are "converted" for Modbus RTU when there doesn't seem to be any actual configuration going on in PME. So basically, how would I access %R registers versus %M or %I or %Q, if that makes sense. I'll keep searching but was hoping someone might be able to provide some insight. Even reading through the 305 manual, it doesn't seem to explicitly describe how this works.