The Fuji OPC-PRT is a Profinet RT communication card that mounts internally in a FRENIC-Ace series variable frequency drive, putting the drive on a Profinet network as the slave node the PLC needs to read and write process data without analog wiring back to the panel. It is sized at 4.7 in overall depth by 3.5 in overall height and is specified as an internal-mount card rather than a DIN-rail accessory, so the card drops into the drive's own option slot and travels with the drive on the panel layout.
Where the OPC-PRT sits in a panel
This card belongs on the FRENIC-Ace family — the Profinet RT link is what carries the drive's control word, speed reference, and status word back to a Siemens or third-party Profinet controller on a line that has standardized on Profinet for its fieldbus. Because the card is internal-mount on the FRENIC-Ace, it replaces the external hardwired I/O scheme on a Profinet retrofit: one Profinet drop replaces the analog reference plus the discrete run/fault wiring back to the PLC, and the card occupies the drive's own option slot rather than panel wall space.
Sibling cards and what they change
Within the FRENIC-Ace comm-card family, the OPC-PRT is the Profinet RT option; the OPC-DEV is the DeviceNet sibling on the same 4.7 in by 3.5 in internal-mount package for FRENIC-Ace, so a panel that needs to drop from Profinet to DeviceNet reuses the same drive cutout — only the card changes, the drive itself stays put.