ICP DAS USA PET-7060, User Manual

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Appendix D: Modbus Application Notes
PET-7000 DIO User Manual, May 2009, V1.00, EMH-013-10----------
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will be disabled if the value is set to less then 5 seconds.
Power ON Value
If the ET-7000 series module is reset, the output of the module is set to the predefined Power
ON Value for the DO and AO channels.
DO address 00235 of the ET-7000 series Modbus register is the first address of the Power
ON value, and the total number of channels depend on the type of module.
For example:
Addresses 00235 to 00240 records the Power ON value for the 6-Channel ET-7060.
Be careful to set the ON value to DO address 00231 to write the DO Power ON value to the
EEPROM of the ET-7000 DO module after using Modbus commands (05 or 15) to change the
Power ON value.
Set the ON value to DO address, 00233 to write the AO Power ON value to the EEPROM of
the ET-7000 AO module after using the Modbus commands (06 or 16) to change the Power
ON value.
z
Configuration via Web page
Browse to the homepage of the ET-7000, and click the “Modbus I/O Settings” link in the
Configuration Section of the Main Menu tree.
Click the ON/OFF radio box to set the power ON/OFF value and then click the
button to enable the settings to take effect.
Safe Value
If the time of the Host PC losing Modbus/TCP communication with the module is greater than
the host WatchDog timer setting (called WDT timeout), the output of the Digital and Analog