Configuration Data; Possible Error Messages; Get Modbus Baud Rate (03H, C000H) - Bosch Rexroth CIMSmart Instruction Manual

C.7 C
ONFIGURATION
To read out the stored Configuration Data the MODBUS function Read Holding Registers 03h is
used as described in [2]. In contrast to this specification, the Starting Address is not used as a
physical address, but more as a Service ID.
The CIMS Sensor supports only access to one Service ID (Address) at one request.
C.7.1 P
OSSIBLE
Negative Response Table – Configuration Data:
Error CIMS MASTER
->
Byte Contents
0 Slave Address
1 Error Function Code (Function Code + 80h)
Exception Code
0x02 - Illegal Data Access - If Service ID not supported
2
0x03 - Illegal Data Value - If the range of data not correct.
0x04 - Slave Device Failure - If the syntax of the request is wrong.
3 CRC
4
C.7.2 G MODBUS B
ET
This service returns the MODBUS Baud Rate which will be used.
Request table: Get MODBUS Baud Rate:
Request MASTER CIMS
->
Byte Contents
0 Slave Address
1 Function Code - Read Holding Registers
2 Starting Address / Service ID - MODBUS Baud Rate
3
4 Quantity of Registers
5
6 CRC
7
Response CIMS MASTER
->
Byte Contents
0 Slave Address
1 Function Code - Read Holding Registers
2 Byte Count
MODBUS Baud Rate
This Baud Rate will be used after next system start.
Coding:
00h = 1200 Bps
01h = 2400 Bps
3
02h = 4800 Bps
03h = 9600 Bps
04h = 19200 Bps (Factory setting)
05h = 38400 Bps
06h = 57600 Bps
07h = 115200 Bps
4 MODBUS Parity
F037 300 069 (2015.09.02)
D
ATA
E M
RROR ESSAGES
R (03
AUD ATE H
75
, C000 )
H
Value
A2h
FC+80h
XXh
XXh
XXh
Value
A2h
03h
C0h
00h
00h
01h
XXh
XXh
Value
A2h
03h
02h
XXh
XXh