Troubleshooting
MagnaTran 7.1 User’s Manual
Communication Related Issues
MN-003-1600-00
Brooks Automation
10-4
Revision 2.2
Communication Related Issues
Symptoms:
No response from robot using personal computer. That is, the robot does not
display either a “:” or “_RDY” response.
OR
No response from robot using CDM. That is, the CDM display screen remains
blank when turned on.
Troubleshooting Process:
Verify personal computer communication settings are 9600, N, 8, 1.
Verify personal computer is setup for its correct communication port.
CDM is turned on while attempting to communicate to robot through personal com-
puter.
Check CDM and/or personal computer cables for proper connection and continuity.
Malfunctioning CDM.
Verify robot’s communication settings are properly set and stored per requirements
of system host controller software by issuing the command RQ COMM ALL.
Verify RS232/RS422 switch, SW1 on the robot personality board is set properly:
Up = RS232, Down = RS422.
Verify that robot is properly grounded. Refer to
Verify the Personality Board has the correct UART installed at designation U40. The
UART must have the letters “BC” stencilled on its surface. UART’s with the letter “A”
are incorrect.
Disk-on-Chip of PC104 Card has failed. Replace robot PC104 Card. Refer to
CPU Board Replacement on page 9-58
DC to DC converter of theta driver board has failed. Replace robot theta driver board.
Refer to
T1/T2 Axis Driver Board Replacement on page 9-41
.
Call Brooks Technical Support.
