Meggitt vibro-meter SpeedSys300 ODS301, User Manual

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Document reference MAODS301/E USER MANUAL
Edition 4 - May 2022 SpeedSys300 ODS301 overspeed detection system
F - 13
Parameters and configuration settings
APPENDIX F: SPEEDSYS300 ODS301 MODBUS REGISTER DEFINITIONS
F.2 Parameters and configuration settings
When a SpeedSys300 ODS301 module is in the normal operating mode (access level: User
/ Device status: Operating), the work parameter set is accessed in read only mode.
When a SpeedSys300 ODS301 module is in the parameter programming mode
(access level: Admin / Device status: Programming – safe state), the work parameter set is
accessed in read/write mode.
The Password – admin area is not available at the User access level in order to help prevent
unauthorized access to the admin password string. See
4.6.1 Changing the Admin access
level password for further information.
It is important to note that in the parameter programming mode, write access further depends
on the access level setting (User, Admin or Factory), which is controlled by “access pass”
(Modbus register 0100).
Write access is only possible using the SpeedSys300 software via the USB serial interface.
F.2.1 Admin password
Table F-6 describes the SpeedSys300 ODS301 Modbus registers related to the
admin password.
This data block is accessible only while access level 1 (admin) or level 2 (factory) is granted.
For access level 0 (user) read and write function is rejected.
NOTE: The Modbus registers in this data block are read/write.
F.2.2 Device configuration – user
Table F-7 describes the SpeedSys300 ODS301 Modbus registers related to the module
configuration – user.
NOTE: The Modbus registers in this data block are read/write.
Table F-6: SpeedSys300 ODS301 Modbus registers – admin password
Address Name
Data
type
Range Access Description
1000 admin_pass char16 Level 1 Admin password
1008 Reserved uint16 Level 1
1009 crc_pass_adm uint16 Level 1 Parameter block CRC