Hitachi L2002 Instruction Manual page 248

B–12
Network Protocol Reference
The data set in the response is as follows:
Response Buffer
Coil Number
Coil Status
Trip data
When the Read Coil Status command cannot be executed normally, refer to the
exception response.
Write in Coil [05h]:
This function writes data in a single coil. Coil status changes are as follows:
Change data (high order)
Change data (low order)
An example follows (note that to command the inverter, set A002=03):
• Sending a RUN command to an inverter having slave address "10"
• This example writes in coil number "1."
Query:
No.
1
2
3
4
5
6
7
8
Note 1:
4
+ 0 (high + 0 (low
order) order)
00h
Over-voltage trip
Data
OFF to ON
Example
Field Name
Slave address *1
Function code
Coil start number
(high order)
Coil start number
(low order)
Change data
(high order)
Change data
(low order)
CRC-16 (high order)
CRC-16 (low order)
No response is made for a
broadcasting query.
5 6
+ 1 (high + 1 (low
order) order)
07h 00h
Under-voltage trip
Coil Status
ON to OFF
FFh
00h
Response:
No.
(Hex)
0A 1 Slave address
05 2 Function code
00 3 Coil start number
(high order)
01 4 Coil start number
(low order)
FF 5 Change data
(high order)
00 6 Change data
(low order)
DC 7 CRC-16 (high order)
81 8 CRC-16 (low order)
7 8
+ 2 (high + 2 (low
order) order)
09h 00h FFh
No trip
00h
00h
Example
Field Name
(Hex)
0A
05
00
01
FF
00
DC
81
9