User`s manual

CYMOD 4531

•

5.4.20 Set Host Watchdog Timer

@Description

Set host watchdog timer, module will change to safety state when host is

failure.

@Syntax

~(Addr)2(Flag)(TimeOut)00<CR>

~ 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 100 ms

01 = 1 * 100 = 100 ms

FF = 255 * 100 = 25.5 sec

(SafeValue) 8 channels safety value of digital output channels when

host is failure. (2-character)

@Response

!(Addr)<CR>

?(Addr)<CR>

! Command is valid.

? Command is invalid.

(Addr) Address ID

@Example

User command: ~30211200<CR>

Response: !30<CR>

30 Address ID

2 Set host watchdog timer and safe state value.

1 Enable host watchdog timer.

12 Timeout value. 0x12 = 18

18 * 100 = 1800 ms