User Manual

ioThinx 4510 Series Software Tools
4-8
Watchdog
Safe Mode on Service: Select the service that you want to link the watchdog to in order to keep monitoring
the connection status (option: Modbus TCP Slave).
Communication Watchdog for Safe Mode: The timeout value when the master of Safe Mode on Service
is disconnected (unit: sec(s), 0 to 65535, 0 is disable).
Auto Clear Safe Mode: Click the checkbox to enable or disable automatically clearing the safe mode status.
Once the communication watchdog is timeout, the safe mode will be enabled. The behavior of ioThinx 4510 and
45MR modules are listed below:
ioThinx 4510 45MR modules
Behavior • Wait for Modbus/TCP Master’s re-connection
• Output channels cannot be controlled via any
access e.g. RESTful API or web console
• Input channels: no change
•
Output channels: set the channel status
according to pre-defined safe mode
settings
LED status RDY: Red fast blinking Status: Red fast blinking (applied to the
modules which have output channels only)
Once the connection is recovered, the behavior of the ioThinx 4510 and 45MR modules are listed below.
1. Auto Clear Safe Mode: Enabled
ioThinx 4510 45MR modules
Behavior Recovered to normal status Recovered to normal status
LED status RDY: Green Status: Green
2. Auto Clear Safe Mode: Disabled
ioThinx 4510 45MR modules
Behavior Status will remain on safe mode until the safe
mode flag is cleared.
Status will remain on safe mode until the
safe mode flag is cleared.
LED status RDY: Red fast blinking until the error flag is
cleared manually
Status: Red fast blinking until the error flag
is cleared manually
NOTE
To exit
the safe mode status, click the "Exit Safe Mode" button on the dashboard or type "0" to the
"watchdogAlarmFlagClear" register through Modbus. Otherwise, output channels cannot be controlled via any
access e.g. RESTful API or web console.