5 troubleshootinh the serial ports, 6 receiving incorrect data – Rockwell Automation 57C570 AutoMax PC3000 User Manual User Manual
Page 215
19Ć23
c) Interpret the least significant bits of the binary number
according to the type of module found in the slot.
See the AutoMax Programming Executive or the AutoMax
Pocket Reference instruction manuals for more
information about decoding bus errors.
Step 2.
Verify that the I/O definitions in the configuration are
correct. Verify that the register numbers defined in the
configuration are valid for the module.
Step 3.
Verify that your application programs are correct.
Make sure logic is not writing to an invalid register. The
error log will contain the statement number in the
program where the error occurred.
19.5
Troubleshooting the Serial Ports
The following table provides tips for helping you troubleshoot the
AutoMax PC3000 serial ports.
ББББББББ
Б
ББББББ
Б
ББББББББ
If this serial port is not
working properly:
БББББББББББББ
Б
БББББББББББ
Б
БББББББББББББ
Check the following:
ББББББББ
Б
ББББББ
Б
Б
ББББББ
Б
Б
ББББББ
Б
ББББББББ
Port A
БББББББББББББ
Б
БББББББББББ
Б
Б
БББББББББББ
Б
Б
БББББББББББ
Б
БББББББББББББ
•
Make sure that Port A is configured for the
communication interface you are using, either
RSĆ232 or RSĆ422. The settings of jumpers E1
and E2 determine the port's configuration.
See chapter 5 for more information.
•
Make sure you are using the OPEN statement
correctly.
ББББББББ
Б
ББББББ
Б
Б
ББББББ
Б
Б
ББББББ
Б
Б
ББББББ
Б
Б
ББББББ
Б
Б
ББББББ
Б
ББББББББ
Port B
БББББББББББББ
Б
БББББББББББ
Б
Б
БББББББББББ
Б
Б
БББББББББББ
Б
Б
БББББББББББ
Б
Б
БББББББББББ
Б
Б
БББББББББББ
Б
БББББББББББББ
•
Make sure that Port B is configured as a
programming device connection or a free
RSĆ232 port. See chapter 5 for more
information.
•
If you are using the port as a programming
device connection, make sure you have the
communication settings properly defined.
•
If you are using the port as a serial port, make
sure you are using the OPEN statement
correctly.
19.6
Receiving Incorrect Data
If you encounter a problem where the data used by the application
programs is either always off, always on, or different than expected,
the possible causes are:
D a programming error
D malfunctioning module