HW Group PortStore5, Руководство пользователя, Страница: 10 / 36

PortStore5 Manual HW group
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Setting up the device – Frequently Asked Questions
∂
Ethernet no longer works but LINK is lit.
Perhaps the device was left in the “RS-232 Setup” mode that is activated by setting DIP1 = ON? In
this mode, the Ethernet does not respond. Set DIP1 = OFF and restart the device by disconnecting
the power supply for at least 3 seconds.
∂
RS-485 communication does not work.
Make sure that termination resistors (120 – 470 Ohms) are present at the line or at the
connector.
∂
When using a RS485 converter, configure &I1 or &I2 and remember to turn on HALF DUPLEX
using &H1 .
∂
I need to supply power to a RS-232 application.
If you don’t need to control data flow (HW handshake) but need to power a device connected to the
serial port (max. 5 – 10 mA), power your application from the RTS output (pin 7 at the RS-232
connector). Use the
&R0 parameter (&R:RS485/RS422 control) in the setup mode to c8 V
to +12 V to this pin.
∂
5-second timeout is too short to work with, is it possible to do something about it?
Yes, enable “Keep connection” in the Setup. PortStore5 then sends a command every 6 seconds
that appears as “
NVT: NOP
” in the receiving pane. This prevents the connection from timing out.