By a width of only 27…50mm these compact pure S7-PLCs  CC300V/T are wqithout peripher slots. They provide a large working- (512kB/1MB) and load memory (2MB/8MB) and a lot of interfaces. This is Ethernet (S7-communication, TCP, UDP), Modbus (-TCP and -RTU), CAN (CANopen and Layer2), RS232 and RS485 (free ASCII). Profibus DP V0 (Master/Slave at CPU-V) resp. Profinet IO Controller (at CPU-T, what proviedes 2 separated Ethernet-ports too) are available optionally. Decentral peripheries can be integrated easily by the cost free configuration tool ConfigStage. This prefers these devises for gateway applications. Your logo and article number? No problem – can be included with the 1st piece.