GE IFIX talking to Moore APACS

I have currently installed GE iFix 3.5 onto a Windows XP machine and trying to get comms to a Moore APACS system. I have the APX - Moore APACS v6.32a driver installed and setup in my SCADA Configuration along with the MBE - Modbus to Ethernet v7.17j driver. The MBE driver is working and pulling data back from my SCADA devices but unable to get any data back from the Moore APACS.
I'm not sure if I need to have any Moore communication configuration software installed or if the APX driver is enough.
Any ideas?

Thanks!

https://www.industry.usa.siemens.com/topics/us/en/apacs2020/support/Documents/APACS_architecture.pdf

An APACS+ ACM using its RS 232 serial port and the ACM Serial Communications Function Block Library provides MODBUS communication capability.
I would check the configuration of the Modbus.

Hope this helps,