Using a 4809 or 4819 to Control Modbus Devices from the GPIB Bus An application note (AB48-25b) describing how a 4809 or 4819
GPIB-to-Modbus Controllers generate Modbus messages and how to use them to
control Modbus Devices (how to use the program below and how to adapt the
program to a final application).
GPIB Troubleshooting
Application Note for RC900 Controller
This application note will help solve communication problems encountered when
using National Instruments (NI) hardware and software with the ESS, Inc. RC900
controller with the GPIB communications interface.