2 rs232 on multibus instrument, 1 applications, e.g. el-flow, Rs232 – Bronkhorst FlowTune User Manual
Page 7: On multibus instrument, Applications, e.g. el-flow, 2 rs232
BRONKHORST
2.2
RS232
ON MULTIBUS INSTRUMENT
The RS232 interface on a multibus instrument can be connected to any RS232 V24 serial (computer) port. Make sure
to respect the hook‐up diagram. Bronkhorst offers special cables for communication, separating the RS232 lines from
the power and analog in‐ and output. On the 9‐pin male D‐sub connector of the instrument RX and TX are available on
pin 6 and pin 1.
RS232 communication is possible by:
•
9‐pin Sub D‐connector
(non‐IP65 instruments, e.g. EL‐FLOW)
•
8‐pin DIN connector
(IP65 instruments, e.g. CORI‐FLOW)
For the exact connections please advise your hook‐up diagram.
2.2.1
Applications, e.g. EL-FLOW
FLOW
EL-FLOW
®
Select
mass flow meter/controller
Power
Supply
Instrument powered through the D‐sub DB‐9 connector
FLOW
EL-FLOW
®
Select
mass flow meter/controller
DeviceNet / FLOW‐BUS instrument powered through the bus connector
FLOW
EL-FLOW
®
Select
mass flow meter/controller
Power
Supply
Profibus instrument powered through the D‐sub DB‐9 connector
For proper cable installation please consult the applicable hook-up diagram mentioned in paragraph
1.2.2
By default, the interface offers communication at a baud rate of 38400 baud. On instruments that offer
the possibility to change the RS232 baud rate, the baud rate may be configured differently.
Page 7
FlowTune
9.17.046