Hitachi L2002 No, No, Data, Example, Example, OFF to ON, ON to OFF, Field Name, Field Name, Coil Status, Response Buffer, Write in Coil [05h]:

B–12

Appendix B

Network Protocol Reference

The data set in the response is as follows:

Response Buffer	4	5	6	7	8		9
Coil Number	+ 0 (high	+ 0 (low	+ 1 (high	+ 1 (low	+ 2 (high	+	2 (low
	order)	order)	order)	order)	order)	order)
Coil Status	00h	07h	00h	09h	00h		FFh
Trip data	Over-voltage trip		Under-voltage trip		No trip

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:

Data		Coil Status
	OFF to ON		ON to OFF
Change data (high order)	FFh		00h
Change data (low order)	00h		00h

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.	Field Name	Example
		(Hex)
1	Slave address *1	0A
2	Function code	05
3	Coil start number	00
	(high order)
4	Coil start number	01
	(low order)
5	Change data	FF
	(high order)
6	Change data	00
	(low order)
7	CRC-16 (high order)	DC
8	CRC-16 (low order)	81

Response:

No.	Field Name	Example
		(Hex)
1	Slave address	0A
2	Function code	05
3	Coil start number	00
	(high order)
4	Coil start number	01
	(low order)
5	Change data	FF
	(high order)
6	Change data	00
	(low order)
7	CRC-16 (high order)	DC
8	CRC-16 (low order)	81

Note 1: No response is made for a broadcasting query.