Utility
Watchdog
Description To use this function block, connect a parameter in a remote device to the input parameter (do NOT connect a local parameter). The timer is reset whenever a non-zero value is received. If the remote device fails or is powered down or if the network fails, the timer will timeout and the output will go true.
Availability
  • Requires library: System & I/O or Process Control (option -05)
  • Firmware versions 0x1010 and later
savvy-SFD Graphic watchdog
Graphic with Parameters watchdog

Parameters

Input Input, Read-only, Placeholder (signed 16-bit integer)

Incoming connection should NOT be from a local parameter.
Timer Internal Parameter, Read-only, Analog (unsigned 16-bit integer)
0.00 s to 600.00 s
0 = Timed Out
Initial Timeout Internal Parameter, Read-write, Analog (unsigned 16-bit integer)
0.01 s to 600.00 s
Timeout Internal Parameter, Read-write, Analog (unsigned 16-bit integer)
0.01 s to 600.00 s
Output Output, Read-only, Boolean (signed 16-bit integer)
0 = OK
1 = Alarm