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ModBus Data Listing
Appendix B
B–28
A062 Frequency lower limit
setting
R/W Sets a limit on output
frequency greater than zero.
Range is start frequency
(B082) to frequency upper
limit (A061).
0.0..setting is disabled
>0.1setting is enabled
0064h (B082 x
10) to
(A061 x
10),
0=disable
>1=enabl
e
0.1 Hz
A262 Frequency lower limit
setting, 2nd motor
R/W 0065h
A063,
A065,
A067
Jump (center) frequency
setting
R/W Up to 3 output frequencies can
be defined for the output to
jump past to avoid motor
resonances (center frequency)
Range is 0.0 to 400.0 Hz
0066h,
0068h
006Ah
0 to 4000 0.1 Hz
A064,
A066,
A068
Jump (hysteresis)
frequency width setting
R/W Defines the distance from the
center frequency at which the
jump around occurs
Range is 0.0 to 10.0 Hz
0067h
0069h
006Bh
0 to 100 0.1 Hz
A071 PID Enable R/W Enables PID function,
two option codes:
00...PID Disable
01...PID Enable
006Ch 0, 1 —
A072 PID proportional gain R/W Proportional gain has a range
of 0.2 to 5.0
006Dh 2 to 50 0.1
A073 PID integral time
constant
R/W Integral time constant has a
range of 0.0 to 150 seconds
006Eh 0 to 1500 0.1 sec
A074 PID derivative time
constant
R/W Derivative time constant has a
range of 0.0 to 100 seconds
006Fh 0 to 1000 0.1 sec
A075 PV scale conversion R/W Process Variable (PV) scale
factor (multiplier), range of
0.01 to 99.99
0070h 1 to 9999 0.01
A076 PV source setting R/W Selects source of Process
Variable (PV), option codes:
00...[OI] terminal (current in)
01...[O] terminal (voltage in)
02...Network
03...Calculate function output
0071h 0, 1, 2, 3 —
A077 Reverse PID action R/W Two option codes:
00...PID input = SP – PV
01...PID input = –(SP – PV)
00E1h 0, 1 —
A078 PID output limit R/W Sets the limit of PID output as
percent of full scale,
range is 0.0 to 100.0%
00E2h 0 to 1000 0.1 %
Holding Registers for “A” Group Standard Functions
Func.
Code
Name R/W Description
Network Data
Reg. Range Res.