272 Rockwell Automation Publication 1766-UM001O-EN-P - September 2021
Appendix F MicroLogix 1400 Distributed Network Protocol
Request 23 (0x17) FC_DELAY_MEASURE Yes Controller parses. Used for non-LAN
Request 24 (0x18) FC_RECORD_CURRENT_TIME No Used for LAN
Request 25 (0x19) FC_OPEN_FILE Yes Controller parses
Request 26 (0x1A) FC_CLOSE_FILE Yes Controller parses
Request 27 (0x1B) FC_DELETE_FILE Yes Controller parses
Request 28 (0x1C) FC_GET_FILE_INFO No
Request 29 (0x1D) FC_AUTHENTICATE_FILE Yes Controller parses
Request 30 (0x1E) FC_ABORT_FILE No
Request 31 (0x1F) FC_ACTIVATE_CONFIG No
Request 32 (0x20) FC_AUTHENTICATE_REQ No
Request 33 (0x21) FC_AUTHENTICATE_ERR No
34 (0x22)…128 (0x80) No Reserved.
Response 129 (0x81) FC_RESPONSE Yes Controller sends
Response 130 (0x82) FC_UNSOLICITED_RESPONSE Yes Controller sends
Response 131 (0x83) FC_AUTHENTICATE_RESP No
132 (0x84)…255 (0xFF) No Reserved.
Table 35 - Function Codes for MicroLogix 1400 Series A Controllers (Continued)
Message Type Function Code Name MicroLogix 1400 Support Description
Table 36 - Function Codes for MicroLogix 1400 Series B and Series C Controllers
Message Type Function Code Name MicroLogix 1400 Support Description
Confirmation 0 (0x00) FC_CONFIRM Yes Controller parses/sends
Request 1 (0x01) FC_READ Yes Controller parses
Request 2 (0x02) FC_WRITE Yes Controller parses
Request 3 (0x03) FC_SELECT Yes Controller parses
Request 4 (0x04) FC_OPERATE Yes Controller parses
Request 5 (0x05) FC_DIRECT_OPERATE Yes Controller parses
Request 6 (0x06) FC_DIRECT_OPERATE_NR Yes Controller parses
Request 7 (0x07) FC_IMMED_FREEZE Yes Controller parses
Request 8 (0x08) FC_IMMED_FREEZE_NR Yes Controller parses
Request 9 (0x09) FC_FREEZE_CLEAR Yes Controller parses
Request 10 (0x0A) FC_FREEZE_CLEAR_NR Yes Controller parses
Request 11 (0x0B) FC_FREEZE_AT_TIME No
Request 12 (0x0C) FC_FREEZE_AT_TIME_NR No
Request 13 (0x0D) FC_COLD_RESTART Yes
Controller parses. Controller should not be in the executing mode and
any program and files should not be in open state.
Request 14 (0x0E) FC_WARM_RESTART No Controller parses
Request 15 (0x0F) FC_INITIALIZE_DATA No Obsolete
Request 16 (0x10) FC_INITIALIZE_APPL Yes
Controller parses. Clears fault and changes the controller mode to
Remote Program. See Start and Stop User Programs (Mode Change)
via DNP3 Network on page 260.
Request 17 (0x11) FC_START_APPL Yes
Controller parses. Clears fault and changes the controller mode to
Remote Run. See Start and Stop User Programs (Mode Change) via
DNP3 Network on page 260.
Request 18 (0x12) FC_STOP_APPL Yes
Controller parses. Changes the controller mode to Remote Program.
See Start and Stop User Programs (Mode Change) via DNP3 Network
on page 260.
Request 19 (0x13) FC_SAVE_CONFIG No Deprecated.
Request 20 (0x14) FC_ENABLE_UNSOLICITED Yes Controller parses
Request 21 (0x15) FC_DISABLE_UNSOLICITED Yes Controller parses
Request 22 (0x16) FC_ASSIGN_CLASS No
Request 23 (0x17) FC_DELAY_MEASURE Yes Controller parses. Used for non-LAN
Request 24 (0x18) FC_RECORD_CURRENT_TIME No Controller parses.Used for LAN
Request 25 (0x19) FC_OPEN_FILE Yes Controller parses
Request 26 (0x1A) FC_CLOSE_FILE Yes Controller parses
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