Rockwell Automation 1766-Lxxxx MicroLogix 1400 Programmable Controllers User Manual - Manual (Page 272)

232 Rockwell Automation Publication 1766-UM001H-EN-P - May 2014
Appendix F MicroLogix 1400 Distributed Network Protocol (DNP3)
Internal Indications
Internal Indication bits are set under the following conditions of the MicroLogix
1400 controllers:
• IIN1.0: ALL_STATIONS. This bit is set when an all-stations message is
received.
• IIN1.1: CLASS_1_EVENTS. This bit is set when Class 1 event data is
available.
• IIN1.2: CLASS_2_EVENTS. This bit is set when Class 2 event data is
available.
• IIN1.3: CLASS_3_EVENTS. This bit is set when Class 3 event data is
available.
• IIN1.4: NEED_TIME. This bit is set when Time synchronization is
required.
• IIN1.5: LOCAL_CONTROL. This bit is set when the controller is in
Non-Executing mode.
• IIN1.6: DEVICE_TROUBLE. This bit is set when the controller is in
Fault mode.
• IIN1.7: DEVICE_RESTART. This bit is set when the DNP3 driver is just
configured, in channel configuration .
• IIN2.0: NO_FUNC_CODE_SUPPORT. This bit is set when a request
which has an unknown function code is received.
• IIN2.1: OBJECT_UNKNOWN. This bit is set when a request which has
an unknown object is received.
• IIN2.2: PARAMETER_ERROR. This bit is set when a request with a
qualifier/range field that cannot be processed is received.
• IIN2.3: EVENT_BUFFER_OVERFLOW. This bit is set when an event
buffer overflow condition exists in the controller and at least one
unconfirmed event is lost.
• IIN2.4: ALREADY_EXECUTING. Not supported.
• IIN2.5: CONFIG_CORRUPT. This bit is set when a bad file type and
bad file number are detected.
• IIN2.6: Reserved.
• IIN2.7: Reserved.
You can access the last transmitted IIN bits in the response through accessing the
element of Communication Status file, CS0:58 or CS2:58. For more details, see
Diagnostics.
DNP3 Objects and
MicroLogix 1400 Data Files All of the DNP3 Objects which are supported in the MicroLogix 1400 are
summarized in Implementation Table on page 314.