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ET-7000/PET-7000 AIO Series User Manual, version 1.0.1 beta3 Page: 153
Copyright © 2009 ICP DAS Co., Ltd. All Rights Reserved. E-mail: [email protected]
B.3. Safe Value
If the time of the Host PC losing Modbus/TCP communication with the module is greater
of the Host WDT events. The value of the WDT events
to 00518 records the Safe value for the 4-Channel ET-7017/PET-7017.
e careful to set the ON value to DO address 00432 to write the DO Safe value to the
5)
can also receive the Modbus/TCP commands
onfiguration via Web page
000/PET-7000, and click the “Modbus I/O Settings”
lick the ON/OFF radio box to set the Safe value and then click the
button to
enable the settings to take effect.
than the host WatchDog timer setting (called WDT timeout), the output of the Digital and
Analog channels is set to the Safe Value, and the count of the host WDT events is
increased by one.
AO address 40558 is the address
will be not stored into EEPROM, and will return to 0 after the module is rebooted. DO
address 00515 is the first address of the Safe value and the total number of channels
depends on the type of module.
For example:
Address 00515
B
EEPROM of the ET-7000/PET-7000 DO module after using Modbus commands (05 or 1
to change the Power ON value.
While the WDT timeout is set, the module
(05, 06, 15 and 16) to change the DO or AO value without needing to clear the host
watchdog timeout value.
C
Browse to the homepage of the ET-7
link in the Configuration Section of the Main Menu tree.
C