POTENTIAL OPERATING ISSUES 
Part. No. 2400M2501_6    Touchpoint Pro 
  155  Technical Handbook 
Operation failed; system is 
running in test mode. 
One of the three test 
modes is active, and 
other operations are 
restricted or not 
permitted 
Wait until testing is complete. If necessary, exit 
Test Mode to carry out the required operation. 
A calculation error 
has occurred during 
calibration, for 
example Zero and 
SPAN calibration 
done with the same 
gas input 
Retry the calibration. Ensure that the values for 
zero and span gas are entered correctly. 
Operation failed; module list is 
mismatching 
The Module list 
detected and the 
Module list in Backup 
file are not the same 
Ensure that the correct backup file for the 
system is being used. Retry the operation. 
Operation failed; please perform 
ring initialisation first 
Faulty CCB has been 
replaced by new CCB 
and configuration 
restore has been 
attempted 
First initialise the ring network, then try again 
The username/password is 
incorrect, please try again 
Verify user name and password and try again. 
Usernames and passwords are case sensitive. 
Cannot open session because a 
channel is being calibrated 
A user at the local 
Touchscreen is doing 
calibration when a PC 
Configuration 
Software user tries to 
open a configuration 
session 
Wait for the calibration to be completed. 
Check with the user at the local controller that it 
is acceptable to log in from remote PC. 
Cannot start calibration because 
a configuration session on PC is 
in progress 
Calibration is 
attempted while a 
configuration session 
is in progress 
Close the configuration session and retry 
calibration. 
Contact the remote user to agree access. 
Operation failed; Brownout Fault 
Brown out fault (low 
power supply voltage) 
is set for a module 
and configuration is 
attempted for this 
module / channels of 
module 
Check that power supply voltage is correct, and 
that current limit is adequate. 
Remedy the fault and then do configuration. 
 
Replace operation cannot be 
performed - no free I/O Modules 
available. Please add a 
compatible I/O Module and 
initialize the ring network again.  
The replacement 
module has not been 
detected on the 
network  
Refer to section Maintenance, Replacing an I/O 
Module for the full procedure.  
Ring initialisation has failed.  
Please cycle the power to the 
system 
Ring Network 
Initialisation has failed 
1. Power cycle the TPPR system 
2. Return to the System Setup screen and retry 
the Ring Initialisation operation.  
Initialisation timeout has 
occurred. Please cycle the 
power to the TPPR system. 
An internal system 
timeout has occurred 
Power cycle the TPPR system