198
Detailed Description of Services
Section 7-5
Command/Response Example
The following command writes the set point of channel 1.
Slave address: H’01
Write start address: H’0240
Write data: H’03E8 (to write a set point of 100.0
°
C)
Command: 01 10 0240 0001 02 03E8 8BEE (CRC-16)
Response: 01 10 0240 0001 01A5 (CRC-16)
7-5-3
Single Write to Variable Area
This service either writes data to the variable area or executes one of the
operation commands given in the table in
2. Write Data
, below.
Command
Response
1.
Write Start Address
Set the write start address to H'FFFF (or H'0000 when using version
) when executing an operation command. When writing to the vari-
able area, refer to
Parameter List
on page 233.
2.
Write Data
When executing an operation command, place the command code in the
upper byte of the write data and place the related information in the lower
byte. When writing data to the variable area, refer to
Parameter List
on
page 233.
1
1
2
H'06
Slave
address
Function
code
Write start
address
Write data
CRC-16
2
2
Operation command
Command code
TC related information
Write Mode
04
00: Backup
01: RAM
Software Reset
06
Always 00.
1
H'06
Slave
address
Function
code
Write start
address
Write data
CRC-16
2
2
2
1
V1.2
Summary of Contents for EJ1 EtherCAT
Page 2: ...EJ1 Modular Temperature Controllers User s Manual Revised July 2008 ...
Page 3: ...iv ...
Page 19: ...xx ...
Page 213: ...188 Detailed Description of Services Section 6 4 ...
Page 227: ...202 Detailed Description of Services Section 7 5 ...
Page 303: ...278 Index ...
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