B–28
ModBus Data Listing
Func.
Code
A056
DC braking / edge or
level detection for [DB]
input
A061
Frequency upper limit
setting
A261
Frequency upper limit
setting, 2nd motor
A062
Frequency lower limit
setting
A262
Frequency lower limit
setting, 2nd motor
A063,
Jump (center) frequency
A065,
setting
A067
A064,
Jump (hysteresis)
A066,
frequency width setting
A068
A071
PID Enable
A072
PID proportional gain
A073
PID integral time
constant
A074
PID derivative time
constant
A075
PV scale conversion
A076
PV source setting
Holding Registers for "A" Group Standard Functions
Name
R/W
R/W Two options; select codes:
00... Edge detection
01... Level detection
R/W Sets a limit on output
frequency less than the
maximum frequency (A004).
R/W
Range is from frequency lower
limit (A062) to maximum
frequency (A004).
0.0.. setting is disabled
>0.1 setting is enabled
R/W Sets a limit on output
frequency greater than zero.
Range is start frequency
R/W
(B082) to frequency upper
limit (A061).
0.0.. setting is disabled
>0.1 setting is enabled
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
R/W Defines the distance from the
center frequency at which the
jump around occurs
Range is 0.0 to 10.0 Hz
R/W Enables PID function,
two option codes:
00... PID Disable
01... PID Enable
R/W Proportional gain has a range
of 0.2 to 5.0
R/W Integral time constant has a
range of 0.0 to 150 seconds
R/W Derivative time constant has a
range of 0.0 to 100 seconds
R/W Process Variable (PV) scale
factor (multiplier), range of
0.01 to 99.99
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
Description
Reg.
0061h
0062h
0063h
0064h
0065h
0066h,
0068h
006Ah
0067h
0069h
006Bh
006Ch
006Dh
006Eh
006Fh
0070h
0071h
Network Data
Range
Res.
0, 1
—
(A062 x
0.1 Hz
10) to
(A004 x
10),
0=disable
>1=enabl
e
(B082 x
0.1 Hz
10) to
(A061 x
10),
0=disable
>1=enabl
e
0 to 4000
0.1 Hz
0 to 100
0.1 Hz
0, 1
—
2 to 50
0.1
0 to 1500
0.1 sec
0 to 1000
0.1 sec
1 to 9999
0.01
0, 1, 2, 3
—