WAGO I/O-SYSTEM 750, Manual, Page: 250 / 450

250 Fieldbus Communication WAGO-I/O-SYSTEM 750
750-882 Media Redundancy ETHERNET Controller
Manual
1.5.0
Table 132: Register Address 0x1002
Register address 0x1002 (4098
dec
)
Value
Watchdog function coding mask, function code 17...32, WD_FCM_17_32
Access
Read/write
Default 0xFFFF
Description Same function as above, however, with the function codes 17 to 32.
FC 17 Bit 0
FC 18 Bit 1
...
FC 32 Bit 15
These codes are currently not supported, for this reason the default value should
not be changed. Changes to the register value can only be made if the watchdog
is deactivated. It is not possible to modify this value while the watchdog is running.
Table 133: Register Address 0x1003
Register address 0x1003 (4099
dec
)
Value Watchdog trigger, WD_TRIGGER
Access Read/write
Standard 0x0000
Description This register is used for an alternative trigger method. The watchdog is triggered
by writing different values in this register. Values following each other must differ
in size. Writing of a value not equal to zero starts the watchdog after a Power-on.
For a restart the written value must necessarily be unequal the before written
value! A watchdog fault is reset and writing process data is possible again.
Table 134: Register Address 0x1004
Register address 0x1004 (4100
dez
)
Value Minimum current trigger time, WD_AC_TRG_TIME
Access Read
Standard 0xFFFF
Description This register saves the minimum current watchdog trigger time. If the watchdog is
triggered, the saved value is compared with the current value. If the current value
is smaller than the saved value, this is replaced by the current value. The unit is
100 ms/digit. The saved value is changed by writing new values, which does not
affect the watchdog. 0x0000 is not permissible.
Table 135: Register Address 0x1005
Register address 0x1005 (4101
dez
)
Value Stop watchdog, WD_AC_STOP_MASK
Access Read/write
Standard 0x0000
Description The watchdog is stopped if here the value 0xAAAA is written first, followed by
0x5555. The watchdog fault reaction is blocked. A watchdog fault is reset and
writing on the process data is possible again.