Function 0x08: Diagnostics
Example: To test the communication loop of 2 continuous words 1234H and
5678H with frequency converter slave address 01H, the frame structure is de-
scribed in the tables below:
Message start
Transmission time for 3.5 bytes
Slave address
01H
Modbus function code
08H
Higher byte of sub-function
00H
Lower byte of sub-function
00H
Higher byte of test word 1
12H
Lower byte of test word 1
34H
Higher byte of test word 2
56H
Lower byte of test word 2
78H
CRC lower byte
73H
CRC higher byte
33H
Message end
Transmission time for 3.5 bytes
Tab. 14-16: Function 0x08_Request from RTU master
Message start
Transmission time for 3.5 bytes
Slave address
01H
Modbus function code
08H
Higher byte of sub-function
00H
Lower byte of sub-function
00H
Higher byte of test word 1
12H
Lower byte of test word 1
34H
Higher byte of test word 2
56H
Lower byte of test word 2
78H
CRC lower byte
73H
CRC higher byte
33H
Message end
Transmission time for 3.5 bytes
Tab. 14-17: Function 0x08_Response from RTU slave
EFC x610 Series
Bosch Rexroth AG
Communication
DOK-RCON03-EFC-X610***-IT05-EN-P
263/389
Содержание EFC 3610 Series
Страница 18: ...Bosch Rexroth AG EFC x610 Series XVI DOK RCON03 EFC X610 IT05 EN P ...
Страница 332: ...Fig 15 15 0020 N 03_0025 N 03 Bosch Rexroth AG Accessories EFC x610 Series 300 389 DOK RCON03 EFC X610 IT05 EN P ...
Страница 333: ...Fig 15 16 0025 A 05 EFC x610 Series Bosch Rexroth AG Accessories DOK RCON03 EFC X610 IT05 EN P 301 389 ...
Страница 336: ...Fig 15 21 0250 N 05 Bosch Rexroth AG Accessories EFC x610 Series 304 389 DOK RCON03 EFC X610 IT05 EN P ...
Страница 421: ...Notes EFC x610 Series Bosch Rexroth AG ...