Watson-Marlow 520Du - Manual (Page 62)

Watson-Marlow 520DuN IP66/NEMA 4X User Manual 62
Basic RS232 cabling
Note: The CTS connection to pin 8 is optional, for use when error conditions are
required.
Never apply mains voltage to the D-connectors. Apply
the correct signals to the pins shown. Limit signals to
the maximum values shown. Do not apply voltage
across other pins. Permanent damage, not covered by
warranty, may result.
RS232 settings
Baud
Set in Setup, Baud.
Factory default is 9600
Parity None
Stop bits 2 Handshake None
Data bits 8 Auto echo On
Pin Function Pin Function
1 — 6 —
2 RX (Receive data) 7 —
3 TX (Transmit data) 8 CTS (clear to send. Active = low)
4 — 9 —
5 OV Shell Earth