ADLINK ND-6021 - Manual (Page 51)

Command Set • 45
3.19 Set Host Watchdog Timer & Safety Value
@Description
Set host watchdog timer, module will change to safety state when host is
failure. Define the output value in this command.
@Syntax
~(Addr)2(Flag)(TimeOut)(SafeValue)
~(Addr)2(Flag)(TimeOut)(SafeA)(SafeB)(SafeC)(SafeD) (6024 Only)
~ Command leading code.
(Addr) Address ID, range (00 - FF).
2 Set host watchdog timer and safe state value.
(Flag)
0 : Disable host watchdog timer
1 : Enable host watchdog timer (1-character)
(TimeOut)
Host timeout value, between this time period host
must send (Host is OK) command to module,
otherwise module will change to safety state.
Range 01 - FF. (2-character)
One unit is 53.3 ms (Firmware version 1.x)
01 = 1 * 53.3 = 53.3 ms
FF = 255 * 53.3 = 13.6 sec
One unit is 100 ms (Firmware version 2.x)
01 = 1 * 100 = 100 ms
FF = 255 * 100 = 25.5 sec
(SafeValue)
Safety value of analog output when host is failure.
(3-character)
000: analog output is 0mA or 0 V
7FF: analog output is 10 mA or 5V
FFF: analog output is 20 mA or 10V
(SafeA)
(SafeB)
(SafeC)
(SafeD)
Safety value of analog output for port A, B, C and D
when host is failure. (3-character)
000: analog output is –10 V
800: analog output is 0 V
FFF: analog output is 10 V