Moxa Technologies ioThinx 4510 Series User Manual page 30

ioThinx 4510 Series
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:
Behavior
LED status
Once the connection is recovered, the behavior of the ioThinx 4510 and 45MR modules are listed below.
1. Auto Clear Safe Mode: Enabled
Behavior
LED status
2. Auto Clear Safe Mode: Disabled
Behavior
LED status
NOTE If auto clear safe mode is disabled in the watchdog configuration, once the Modbus connection reconnects,
click the Exit Safe Mode button on the dashboard or type 0 in the watchdogAlarmFlagClear register
through Modbus to exist safe mode status. Otherwise, output channels cannot be controlled via any access
method, such as RESTful API and web console.
ioThinx 4510
• Wait for Modbus/TCP Master's re-connection
• Output channels cannot be controlled via
any access e.g. RESTful API or web console
RDY: Red fast blinking
ioThinx 4510
Recovered to normal status
RDY: Green
ioThinx 4510
Status will remain on safe mode until the safe
mode flag is cleared.
RDY: Red fast blinking until the error flag is
cleared manually
45MR modules
• Input channels: no change
• Output channels: set the channel
status according to pre-defined safe
mode settings
Status: Red fast blinking (applied to the
modules which have output channels only)
45MR modules
Recovered to normal status
Status: Green
45MR modules
Status will remain on safe mode until the
safe mode flag is cleared.
Status: Red fast blinking until the error
flag is cleared manually
4-8
Software Tools