Instruction Manual
Tek-LCD 7801C
www.tek-trol.com
Technology Solutions
77
6.61
Modbus Server Settings
The Modbus Server settings must match the settings of other devices on the bus. The Modbus ID
must be unique for each device on the bus.
•
Modbus Write Protection
Select Passcode and enter a Modbus passcode between 0 and 9999 to prevent
unauthorized writes to the controller.
*Note: The Modbus passcode is different than the main password used to protect access to the Setup and View
menus.
6.62
Modbus Client Settings
The Modbus Client settings must match the settings of other devices on the bus.
The Rx Timeout is used for devices that are slow to respond, such as wireless Modbus servers.
•
Modbus Write Protection
Select Passcode and enter a Modbus passcode between 0 and 9999 to prevent
unauthorized writes to the controller.
*Note: The Modbus passcode is different than the main password used to protect access to the Setup and View
menus.
6.63
Modbus Snooper Settings
The Modbus Snooper settings must match the settings of other devices on the bus. The Snooper
works also as a server, responding to request from a Modbus client. A unique server ID must be
assigned to it.
The Rx Timeout is used for devices that are slow to respond, such as wireless Modbus servers.
•
Modbus Write Protection
Select Passcode and enter a Modbus passcode between 0 and 9999 to prevent
unauthorized writes to the controller.
