Rockwell Automation 2711P Creating Modbus Applications - Manual (Page 28)

Publication 2711P-UM002B-EN-P - March 2007
28 Configuring KEPServer Drivers for Modbus
Step 8 - Set the Block Size for Reading Data from Device
(Doesn’t apply to Unsolicited Serial Protocol)
The New Device - Block Sizes dialog sets the largest block size for
reading I/O (coils) and data tables (Registers). Click Next.
Modbus Unsolicited Serial and Modbus ASCII
Modbus/TCP, Modbus RTU Serial, Modbus ASCII