Hitachi X200 Series instruction manual ModBus Holding Registers, Res

B−21

ModBus Holding Registers

The following tables list the holding registers for the inverter interface to the network. The table legend is given below.

•Function Code - The inverter’s reference code for the parameter or function (same as inverter keypad display)

•Name - The standard functional name of the parameter or function for the inverter

•R/W - The read-only(R) or read-write access(R/W) permitted to the data in the inverter

•Description - How the parameter or setting works (same as Chapter 3 description).

•Reg. - The network register address offset for the value. Some values have a high- byte and low-byte address.

•Range - The numerical range for the network value that is sent and/or received

TIP: The network values are binary integers. Since these values cannot have an embedded decimal point, for many parameters it represents the actual value (in engineering units) multiplied by a factor of 10 or 100. Network communications must use the listed range for network data. The inverter automatically divides received values by the appropriate factor in order to establish the decimal point for internal use. Likewise, the network host computer must apply the same factor when it needs to work in engineering units. However, when sending data to the inverter, the network host computer must scale values to the integer range listed for network communications.

•Resolution - This is the quantity represented by the LSB of the network value, in engineering units. When the network data range is greater than the inverter’s internal data range, this 1-bit resolution will be fractional.

List of Holding Registers

Func.	Name	R/W	Description		Network Data
Code				Reg.		Range	Res.
−	Output frequency	R/W	Inverter output frequency (set	0002h		0 to 4000	0.1 Hz
	command		A001=03 to enable this network
			register),
			range is 0.0 to 400.0 Hz
−	Inverter status	R	00...Initial status	0003h		0 to 9	−
			01...(Reserved)
			02...Stop Mode
			03...Run Mode
			04...Free-run stop (FRS)
			05...Jogging
			06...DC braking
			07...Retry
			08...Trip alarm
			09...Under-voltage
−	Process Variable (PV)	R/W	PID loop PV value from the	0005h		0 to 1000	0.1%
			network (set A076=02 to
			enable this setting), range is
			0.0 to 100.0%

Appendix B