B&B Electronics PPC Manual De Usuario

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Documentation Number PPC2095 Manual 
B&B Electronics  --  PO Box 1040  --  Ottawa, IL  61350 
PH (815) 433-5100  --  FAX (815) 433-5105
 
 
RS-422/RS-530  
 
The port checker uses the RS-232 software to check the RS-
422/530 ports.  Some 422/530 ports support all RS-232 handshake 
lines but many do not.  Therefore, when checking 422/530 ports, you 
should check the port after it is first installed and working properly.  
You will then have a record of how your 422/530 port initially tested 
in the file “ PORTCK.DAT “.  Thereafter,  if you suspect a problem 
with your port, you can run the port check and compare these results 
to the original results. 
 
Special Note on B&B's RS-422/485 I/O Card, Model 
422ICCR3: 
 When using the port checker to check this IO 
card, your port checker jumper should be set to RS-530.  
When you run the port checker software you will get an RI 
(Ring Indicator) failure.  
 
 
The port checker is not designed to test RS-485 cards.  If your 
IO card is set up for RS-485 you will get multiple failures. 
         
 
If you have an RS-232 to RS-422 converter and are using the 
port checker to test the output of the converter, you should be using 
the RS-422 portion of the port checker.  However, it is important to 
note that, depending on how the handshake lines are handled, you 
might get handshake line failures.  If the RS-232 to RS-422 
converter is working properly, or if you are checking a standard RS-
422 port, you should not get a TXD or RXD failure.  If they are 
working that test should pass. 
 
 
Exiting the Test  
 
After each test is performed, the software will ask if another test 
is to be performed or if you want to exit the port checker program. 
IMPORTANT:  After exiting the port checker software program you 
should do a hardware reboot.  The port checker software may have 
altered your system configuration registers that are reconfigured on 
each hardware reboot.