Pilz PMI 509 - Manual (Page 27)

Wiring
Operating Manual PMI 5
1002241­EN­05 27
} 2: Earth bus bar
} 3: Supply voltage
} 4: Functional earthing terminal (electronic)
} 5: Functional earthing bolts (housing)
} 6: Data line shield
0 V and are connected internally.
6.2.3 Interfaces
Pin assignment of RS232 interface
(COM1)
GND
n.c.
TxD
RxD
n.c.
n.c.
CTS
RTS
n.c.
n.c. = Not
connected
Fig.: Pin assignment of RS232 interface, Sub­D connector, 9­pin