D02706R02.30
L-PRO 4000 User Manual
Appendix E-1
Appendix E Modbus RTU Communication
Protocol
All metering values available through the terminal user interface are also avail-
able via the Modbus protocol. Additionally, the Modbus protocol supports the
reading of unit time and time of the readings and provides access to trip and
alarm events, including fault location information. All metering readings can
be frozen into a snapshot via the “Hold Readings” function (see Force Single
Coil function, address 0).
Read Coil Status (Function Code 01)
Channel
Address
Value
Hold Readings
1
0: Readings not held
1: Readings held
Reserved
257
Reserved
Reserved
Output Contact 1
513
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 2
514
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 3
515
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 4
516
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 5
517
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 6
518
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 7
519
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 8
520
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 9
521
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 10
522
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 11
523
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 12
524
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 13
525
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 14
526
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 15
527
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 16
528
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 17
529
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 18
530
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 19
531
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 20
532
0: Contact Open (inactive)
1: Contact Closed (active)
Output Contact 21
533
0: Contact Open (inactive)
1: Contact Closed (active)
21P1 Trip
769
0: Off (inactive)
1: On (active)
21P2 Trip
770
0: Off (inactive)
1: On (active)
21P3 Trip
771
0: Off (inactive)
1: On (active)
21P4 Trip
772
0: Off (inactive)
1: On (active)
51 Trip
773
0: Off (inactive)
1: On (active)
50 Trip
774
0: Off (inactive)
1: On (active)
21N1 Trip
775
0: Off (inactive)
1: On (active)
21N2 Trip
776
0: Off (inactive)
1: On (active)
21N3 Trip
777
0: Off (inactive)
1: On (active)
21N4 Trip
778
0: Off (inactive)
1: On (active)
68 Power Swing
779
0: Off (inactive)
1: On (active)
Z Circle Trigger
780
0: Off (inactive)
1: On (active)
51N Trip
781
0: Off (inactive)
1: On (active)
50N Trip
782
0: Off (inactive)
1: On (active)
Содержание L-PRO 4000
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