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Commissioning
3.2 Flowmeter connection using RS-232
SITRANS FUH1010 Quick Start
20
Operating Instructions (Compact), 12/2008, CQO:QSG010 Revision A
1.
Referring to the schematic below, wire the RS-232 Interface cable.
Note
Many newer Laptop PCs are not equipped with serial ports, having USB ports only.
These PCs will require a USB RS-232 adapter that can be purchased commercially. Not
all of these adapters are suitable.
Siemens has found the best performance is achieved
with the adapter from Radio Shack (part#26-183).
2.
Connect the cable between the flowmeter and the PC using either the 9-pin, 25-pin or
USB-to-RS-232 cable connector, depending upon the port's architecture.
3.
Refer to the flowmeter manual for details for accessing the Installation Menu.
RS-232 Interface Cable - RS-232 Connectors (use 9-pin or 25-pin)
The figure below is the schematic of the serial interface cable (MLFB P/N 7ME3960-0CS00)
needed to make the physical connection between the flowmeter and your PC. The wire ends
for the flowmeter terminations are stripped for easy insertion into TB2. Note that both
connectors have their CTS pin shorted to the RTS pin (pins 4-5 on 25-pin connector and pins
7-8 on 9-pin connector).
81/2&.
/2&.
*1'
7%
*1'
6
-
①
TB1
⑦
Red Wire
②
9-PIN SOLDER SIDE
⑧
White Wire
③
25-PIN SOLDER SIDE
⑨
Black Wire
④
25-Pin Serial Connector
⑩
TB2 of Flowmeter
⑤
9-Pin Serial Connector
⑪
RX To Flowmeter
⑥
CABLE P/N 1015CPC-N
⑫
TX From Flowmeter
Figure 3-3
RS-232 Interface Cable Wiring
Содержание FUH1010 IP65 NEMA 7 Compact
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