Parameters Rollout

This rollout is used in the following functions:

• Read Coil Status
• Read Discrete Inputs
• Read Holding Registers
• Write Single Coil
• Write Single Register
• Diagnostics
• Read FIFO Queue
• Write Single Coils (response)
• Write Single Register (response)
• Read Exception Status (response)
• Diagnostics (response)
• Get Comm Event Counter (response)
• Write Multiple Coils (response)
• Write Multiple Registers (response)
• ERROR (response)

The rollout contains two edit boxes that allow you to enter two 16-bit integers (except ERROR response, where only 8-bit values are allowed). Since the Read FIFO Queue function has a single parameter, the second edit box is disabled when you select this function.

Parameter names varies according to the selected function. Please consult the MODBUS documentation for a definition of function parameters and their acceptable ranges.