ERL F-PRO 5100, User Manual

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Appendix E Modbus RTU Communication Protocol
D02416R04.00 F-PRO 5100 User Manual Appendix E-9
• The F-PRO IED model number is 5100.
• Version and issue will each be positive integers, say X and Y.
• The F-PRO is defined as “Model 5100, Version X Issue B”
Get the next event
(without acknowl-
edge) 40515 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
0 x 13EC = 5100 decimal
Version Number Read Only 2 and 3
Version number
Issue Number Read Only 4 and 5
Issue number
Accessing F-PRO Event Information
All F-PRO detector event messages displayed in the Event Log are available via Modbus. This includes fault location information.
The following controls are available.
Refresh Event List (Function Code 6, address 40513): Fetches the latest events from the F-PRO's event log and
makes them available for Modbus access. The most recent event becomes the current event
available for reading.
Acknowledge Current Event
and Get Next Event (Function Code 6, address 40514): Clears the current event from the read registers and
places the next event into them. An acknowledged event is no longer available for reading.
Get Next Event (Function Code 6, address 40515): Places the next event in the read registers without
acknowledging the current event. The current event will reappear in the list when Refresh
Event List is used.
Size of Current Event Mes-
sage (Function Code 3, address 40516): Indicates the number of 16 bit registers used to contain
the current event. Event data is stored with two characters per register. A reading of zero indi-
cates that there are no unacknowledged events available in the current set. (NB. The Refresh
Event List function can be used to check for new events that have occurred since the last
Refresh Event List.)
(Function Code 3, address 40517): Identifies fault location events. These events are identified
by “FL” in this register. Non-fault location events contain “ ” in this location.