ProSoft Technology 5204SE-MNET-PDPMV1 - Manual (Page 199)

Reference 5204SE-MNET-PDPMV1 ♦ ProLinx Gateway
User Manual Modbus TCP/IP to PROFIBUS DP-V1 Pass-Through Master
ProSoft Technology, Inc.
Page 199 of 235
December 22, 2009
Type of request
00h: Internal slave diagnostic request. Returns the diagnostic information stored
in the master. Can only be requested for slaves configured by the master.
Note: Not allowed when operating in "Class 2-Only" mode.
01h: External slave diagnostic request. Sends a diagnostic request on the
network to the specified slave. Can be requested for all slaves on the network.
Error code [1 ...4]
If "Return Code" equals 8030h ("Negative indication from lower layer"), status
values according to the DP-specification may be available in "Error Code 1".
Error Codes 2 to 4 are reserved. Refer to Mailbox Messaging Error Codes.
Return Code
Refer to Mailbox Messaging Error Codes
Fault Information
If "Invalid Other" is returned in the Acyclic Message Status Word in the header of
the response, information about the fault can be found here.
0001h: Address out of range.
0002h: Incorrect "Type of request"
000Ah: Failed to read diagnostic data from slave. Refer to Return Codes (page
219) for additional fault information.
000Bh: Remote station failure. Refer to Return Codes (page 219) for additional
fault information.
00FEh: Command not possible; gateway operates as a Class 2 master only.
00FFh: gateway offline (not initialized or no valid database).
Station Status [1 ... 3]
Refer to EN50170 Vol. 2 for more information.
Master Address
Address of the master that parameterized the slave.
Ident Number
Unique ID assigned by the PROFIBUS User Organization.
Extended Diagnostic Data
Slave user-specific data. Refer to the documentation for the actual slave for more
information.