Hitachi SJ7002 Series Instruction Manual page 293

The arrangement of the terminal assignment data permits you to assign all inputs in a single
command. The example below shows a transmission to the inverter at address Node 1 to set the
Forward command, Multi-speed 1 and Multi-speed 2.
Command – 03
The 03 command reads the monitor data as a single block.
The frame format of command 03 follows the
diagram and specification table. The transmit
frame has no data field.
STX
Node
Command
BCC
[CR]
The receive frame has a 104-byte data field,
containing values for 13 items.
STX
Node
Data
BCC
[CR]
Sum the three data strings:
(STX) | 01 | 02 | 0x000000000000000D | (BCC) | (CR)
02 | 30 31 | 30 31 | 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 68 | 30 35 | 0D
Element Description
Control code (STart of TeXt)
Node (station) address of inverter
Transmission command
Block check sum code
Control code (carriage return)
Element Description
Control code (STart of TeXt)
Node (station) address of inverter
Transmission data
Block check sum code
Control code (carriage return)
0x0000000000000001
+ 0x0000000000000004
+ 0x0000000000000008
= 0x000000000000000D
to ASCII
Transmit frame format
STX Node
Size
1 byte STX (0x02)
2 bytes 01 to 32
2 bytes 03
2 bytes Exclusive OR of Node,
Command, and Data
1 byte [CR] (0x0D)
Receive frame format
STX Node
Size
1 byte STX (0x02)
2 bytes 01 to 32
104 (see next table)
bytes
2 bytes Exclusive OR of Node,
Command, and Data
1 byte [CR] (0x0D)
B–9
SJ700 Inverter
2
Command BCC [CR]
Value
Data BCC [CR]
Value