ERL tesla lite, User Manual, Page: 246 / 288

Appendix D Modbus Functions
Appendix D-10 TESLA LITE User Manual D03283R01.10
• The TESLA LITE IED model number is 4001.
• Version and issue will each be positive integers, say X and Y.
• The TESLA LITE is defined as “Model 4001, Version X Issue Y”
Preset Single Register (Function Code 06)
Channel Address Value Scaled Up By
Event Information (See Accessing TESLA Event Infor-
mation, below)
42099 – 42051
Refresh event list 42049 No data required N/A
Acknowledge the current event and get the next event 42050 No data required N/A
Get the next event (without acknowledge) 42051 No data required N/A
Diagnostic Subfunctions (Function Code 08)
Return Query Data (Subfunction 00) This provides an echo of the submitted message.
Restart Comm. Option (Subfunction 01) This restarts the Modbus communications process.
Force Listen Only Mode (Subfunction 04) No response is returned. IED enters “Listen Only” mode. This
mode can only be exited by the “Restart Comm. Option” com-
mand.
Report Slave ID (Function Code 17/0x11)
A fixed response is returned by the IED, including system model, version and issue numbers.
Channel Type Bytes Value
Model Number Read Only 0 and 1 0x07D00 = 2000 decimal
Version Number Read Only 2 and 3 Version number
Issue Number Read Only 4 and 5 Issue number