Hitachi X200 Series instruction manual Communication Settings on

Appendix B

B−37

List of Holding Registers

Func.	Name	R/W	Description	Network Data
Code				Reg.	Range	Res.
C044	PID deviation level	R/W	Sets the allowable PID loop error	1129h	0 to 1000	0.1 %
	setting		magnitude (absolute value), SP-PV,
			range is 0.0 to 100%, resolution is
			0.1%
C052	PID FBV function high	R/W	When the PV exceeds this value,	112Eh	0 to 1000	0.1 %
	limit		the PID loop turns OFF the PID
			second stage output, range is 0.0 to
			100%
C053	PID FBV function	R/W	When the PV goes below this value,	112Fh	0 to 1000	0.1 %
	variable low limit		the PID loop turns ON the PID
			second stage output, range is 0.0 to
			100%
C070	Selection of OPE /	R/W	Two option codes:	1137h	2, 3	−
	ModBus		02…OPE or option
			03…ModBus (485)
C071	Communication speed	−		1138h	−	−
	selection
C072	Node allocation	−		1139h	−	−
C074	Communication parity	−	NOTE: These network settings are	113Bh	−	−
	selection		not accessible to ModBus. Use the
C075	Communication stop bit	−	inverter keypad or digital operator	113Ch	−	−
	selection		to edit. Refer to “Network
C076	Communication error	−	Communication Settings” on page	113Dh	−	−
	select		3–60.
C077	Communication error	−		113Eh	−	−
	time-out
C078	Communication wait	−		113Fh	−	−
	time
C081	O input span calibration	R/W	Scale factor between the external	1141h	0 to 2000	0.1 %
			frequency command on terminals
			L–O (voltage input) and the
			frequency output,
			range is 0.0 to 200%
C082	OI input span calibration	R/W	Scale factor between the external	1142h	0 to 2000	0.1 %
			frequency command on terminals
			L–OI (voltage input) and the
			frequency output,
			range is 0.0 to 200%
C086	AM offset calibration	R/W	Offset adjustment of AM output.	1145h	0 to 100	0.1 V
			Range is 0.0 to 10.0
			Adjust together with B080 (AM
			gain adjustment)
C091	Debug mode enable	−	Displays debug parameters.	−	−	−
			Two option codes:
			00…Disable
			01…Enable
C101	Up/Down memory mode		Controls speed setpoint for the	1149h	0, 1	−
	selection		inverter after power sycle.
			Two option codes:
			00…Clear last frequency (return to
			default frequency F001)
			01…Keep last frequency adjusted
			by UP/DWN