WAGO-I/O-SYSTEM 750
Fieldbus Communication 245
750-880, 750-880/025-000 ETHERNET Programmable Fieldbus Controller
Manual
Version 1.0.1
Table 134: 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. These codes
are currently not supported, for this reason the default value should not be
changed. It is not possible to modify this value while the watchdog is running.
Pos: 109.33 /Alle Serien (Allgemeine Module)/Feldbuskommunikation/MODBUS/Zugriff auf Registerwerte - Watchdog-Register (ab 0x1003 bis 0x100A) @ 8\mod_1278926087850_21.doc @ 59546 @ @ 1
Table 135: Register address 0x1003
Register address 0x1003 (4099
dez
)
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. A
watchdog fault is reset and writing process data is possible again.
Table 136: Register address 0x1004
Register address 0x1004 (4100
dez
)
Value
Minimum current trigger time, WD_AC_TRG_TIME
Access
Read/write
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. 0x000 is not permissible.
Table 137: 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.
Table 138: Register address 0x1006
Register address 0x1006 (4102
dez
)
Value
While watchdog is running, WD_RUNNING
Access
Read
Standard
0x0000
Description
Current watchdog status.
at 0x0000: Watchdog not active
at 0x0001: Watchdog active
at 0x0002: Watchdog exhausted.