Hitachi SJ7002 Series Instruction Manual page 319

Note 2: The content of a transmission error is held until the error is reset. (The error can be
ModBus Holding
The following tables list the holding registers for the inverter interface to the network. The table
legend is given below.
Registers
• Function Code - The inverter's reference code for the parameter or function (same as
• Name - The standard functional name of the parameter or function for the inverter
• R/W - The read-only or read-write access permitted to the data in the inverter
• Description - How the parameter or setting works (same as Chapter 3 description)
• Register - The network register address offset for the value, in hex and decimal. Actual
• 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) multi-
plied 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 engineer-
Func. Code Name
— Inverter status A
— Inverter status B
— Inverter status C
— PID feedback
— (Reserved)
reset while the inverter is running.)
inverter keypad display). Long-word values (32) bits are listed in two rows; "H" and "L"
indicate the high and low order words.
network address is 40001 + offset. Some values have a high-byte and low-byte address.
ing units. When the network data range is greater than the inverter's internal data range, this
1-bit resolution will be fractional.
Holding Registers, "D" Group Monitor Functions
R/W
R 0 = Initial status; 1 = Waiting for
Vdc level; 2 = Stoping; 3 =
Running; 4 = Free-run Stop
(FRS); 5 = Jogging; 6 = DC
Braking; 7 = Freq. is input; 8 =
Retrying operation; 9 = Under-
voltage (UV)
R 0 = Stopping; 1 = Running;
2 = Tripping
R 0 = ---; 1 = Stopping; 2 = Decel-
erating; 3 = Constant-speed
operation; 4 = Accelerating; 5 =
Forward rotation; 6 = Reverse
rotation; 7 = Forward-to-reverse
rotation transition; 9 = Starting
forward rotation; 10 = Starting
reverse rotation
R/W
—
Description Register
hex
0003h
0004h
0005h
0006h
— 0007h
to
0010h
B–35
SJ700 Inverter
2
Network Data
Range Res.
dec.
00003 0 to 9 —
00004 0, 1, 2 —
00005 0 to 10 —
00006
00007 — —
to
00016