Omron J7 series, Руководство пользователя

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104
DSR Message and Response
Chapter 7-4
DSR Message
Response
Normal
Error
Note 1. When an error occurs, the MSB of the function code will be set to 1.
2. A broadcast message uses the same DSR message format. The Slave
address is, however, always set to 00 and only register 0001 Hex (the RUN
command) and register number 0002 Hex (the frequency reference) can
be written.
Byte No. Data
1 Slave address
2 Function code (10 Hex)
3 Register No. of write start data
4
5 Number of registers of write data (max. 16)
6
7 Data of start register
8 Data of next register MSB
9 LSB
10 Data of next register MSB
11 LSB
12 Data of next register MSB
13 LSB
: : :
n–1 CRC-16 check
n
Byte No. Data
1 Slave address
2 Function code (10 Hex)
3 Register No. of write start data MS B
4 LSB
5 Number of registers of write data MSB
6 LSB
7 CRC-16 check
8
Byte No. Data
1 Slave address
2 Function code (90 Hex)
3 Error code
4 CRC-16 check
5