Mitsubishi Electric AE1000-SW, Инструкция по эксплуатации

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E-19
5.4 Framing of Query and Response
<Read Holding Registers（Function code : 03H）>
Query framing
**H 03H Hi Lo Hi Lo Lo Hi
Slave
address Function
Code
Starting address quantity of registers CRC

Slave address ：1～7FH
 Starting address ：2 bytes

Quantity of registers ：Maximum 125
 CRC ：2 bytes
Response framing （Maximum 255 bytes）
**H 03H
Byte
count
Hi Lo Hi Lo Lo Hi
Slave
address Function
Code
data 1 data 2 CRC
 Byte count of response data ：maximum 250
＜Example＞ In case of monitoring from instantaneous current in Phase 1 （0300H） to apparent power （0326H）.
Slave address ：01H
Query framing
01H 03H 03H 00H 00H 27H Lo Hi
Slave
address Function
Code
Starting address quantity of registers CRC
Response framing
01H 03H 4EH H L H L H L Lo Hi
Slave
Address
Function
Code
Byte count I1 I2
Apparent
Power
CRC
<Preset Multiple Registers（Function code :10H）>
Query framing （Maximum 255 bytes）
**H 10H Hi Lo Hi Lo Hi Lo Hi Lo Lo Hi
Slave
address
Function
Code
Starting
address
quantity of
registers
Byte
count
data 1 data 2 CRC

Slave address ：0～7FH，0 means broadcasting.
 Starting address ：2 bytes

quantity of registers ：Maximum 123
 Byte count ：Maximum 246

Preset data ：Minimum 2 bytes
 CRC ：2 bytes
Response framing （If the slave address is 0 (broadcast), a response is not made.）
**H 10H Hi Lo Hi Lo Lo Hi
Slave
address
Function
Code
starting address quantity of registers CRC
＜Example＞ In case of setting from Date and time (YYMM) (20EH) to Contact output(211H).
Slave address ：01H
Query framing
01H 10H 02H 0EH 00H 04H 08H H L H L H L H L Lo Hi
Slave
address
Function
Code
starting
address
quantity of
registers
Byte
count
YY MM DD HH MM SS
Contact
Output
CRC
*BCD code
Response framing
01H 10H 02H 0EH 00H 04H Lo Hi
Slave
address
Function
Code
starting address quantity of registers CRC