INFICON LDS3000 Modular Leak Detector Interface description - Manual (Page 53)

Fieldbus Communication 53
► refer to the document: „How to configure an Anybus PROFIBUS slave module
with Siemens Step 7“
downloadable at http://www.anybus.com/support/support.asp?PID=321&Product-
Type=Anybus-CompactCom
6.5.2 Diagnosis with the CU1000 Info Menu
The current state of the BM1000 is visible in the info menu of the control unit CU1000:
M
ENU > I NFO > I NTERFACES > P AGE 2 > I NFO B US MODULE .
6.5.3 Serial communication via RS232 (common)
Error Possible Reason Solution
No characters are received
via the interface / the
Modul1000 does not answer
Wrong cable
Please use a 1:1 cable, (NO null-modem cable, also
called cross-over cable!)
Problems with flow control
Deactivate flow control in PC/PLC or use cable
according to the wiring diagram in Section 2
Wrong COM-Port used at
PC
Select correct COM-Port
No characters are received
via the interface / the
Modul1000 does not answer
Wrong interface
parameters (Baud rate,
Data bits, Parity, Stop bits) Check if interface parameters (Baud rate, number of
data bits, parity bit and number of stop bits in the
LDS3000 and PC / PLC match)
Wrong protocol selected in
the Modul1000
Select correct protocol in the LDS3000
PC uses an USB-RS232
converter
In general the IO1000 will also work with an
USBRS232- converter. However, these often cause
multiple difficult to track problems (driver, flow
control.) Please test your PC program on a “real”
RS232 interface first preferably. Especially with
USB-RS232-converters it is often helpful to use a
cable according to the wiring diagram in chapter 4 of
the IO1000 documentation.
Serial interface of PC is
(still) occupied with a
different program
Check if other programs uses the serial interface. It
is also possible that an already closed program has
not released the interface again yet. In this case a
restart of the PC will help.
The Modul1000 replies with
„unreadable“ characters
Wrong interface
parameters (Baud rate,
Data bits, Parity, Stop bits) Check if interface parameters (Baud rate, number of
data bits, parity bit and number of stop bits in the
IO1000 and PC / PLC match)
Wrong protocol selected in
the LDS3000
Select correct protocol in the LDS3000