Instruction manual
ControlWave Micro Instruction Manual (CI-ControlWave Micro)
Revised Jun-2013 Service & Troubleshooting 5-25
watchdog state can recur but you cannot logically reproduce the
conditions.
The CPU module’s RAM contains “crash blocks,” a firmware function
provided specifically for watchdog troubleshooting. You can view and
save the crash blocks by viewing the Crash Block Statistic Web Page
(see the Web_BSI Manual, D5087). On request, you can forward crash
block files to our technical support personnel. If they need additional
information to evaluate the condition, the technical support group may
request a core updump. Once the core updump process generates a file,
you can forward that file to the support personnel for evaluation and
resolution.
Use the following steps to preserve the “failed state” condition at a
system crash and perform a core updump:
1. Set switch SW2-1 on the CPU module to OFF (Disable
Watchdog Timer). If switch SW2-4 is ON, set it to OFF (Enable
Core Updump).
Note: The factory default setting for switch SW2-4 is OFF.
2. Wait for the error condition (typically 3F on the PSSM’s status
LEDs).
3. Connect the ControlWave Micro’s Comm Port 1 to a PC using a
null modem cable.
4. If the Micro’s PSSM has a Run/Remote/Local switch, set it as
follows:
Note: You must perform each step in less that one second.
a. Set Run/Remote/Local switch to Run
b. Set Run/Remote/Local switch to Remote
c. Set Run/Remote/Local switch to Local
d. Set Run/Remote/Local switch back to Remote
e. Set Run/Remote/Local switch back to Local
If the PSSM has an SW1 mode switch, set it for Recovery Mode:
set both SW1-1 and SW1-2 to the right for open operation or
both to the left for closed operation.
5. Start the PC’s HyperTerminal program (at 115.2 kbaud) and
generate a receive using the 1KX-Modem protocol. Save the
resulting core updump in a file so you can forward it later to the
technical support group.
By setting the CPU module switches SW2-1 and SW2-4 both off before
the Micro fails, you prevent the Micro from automatically recovering
from the failure and enable it to wait for you to take a core updump.