ScreenMaster RVG200
Paperless recorder
Appendix B – MODBUS TCP / MODBUS 485
156
OI/RVG200-EN
MODBUS registers
Stop / Go
Reset
Wrap pulse
1st stage pulse
Flowrate failure
Read access
0 = Stopped
1 = Running
0 = >1s*
1 = <1s*
0 = Inactive
1 = Active
0 = Inactive
1 = Active
0 = Inactive
1 = Active
Write access
0 = Stop
1 = Start
1 = Reset
Totalizer
MODBUS coil
MODBUS coil
MODBUS coil
MODBUS coil
MODBUS coil
1A
401
501
601
701
801
1B
402
502
602
702
802
2A
403
503
603
703
803
2B
404
504
604
704
804
3A
405
505
605
705
805
3B
406
506
606
706
806
4A
407
507
607
707
807
4B
408
508
608
708
808
5A
409
509
609
709
809
5B
410
510
610
710
810
6A
411
511
611
711
811
6B
412
512
612
712
812
7A
413
513
613
713
813
7B
414
514
614
714
814
8A
415
515
615
715
815
8B
416
516
616
716
816
9A
417
517
617
717
817
9B
418
518
618
718
818
10A
419
519
619
719
819
10B
420
520
620
720
820
11A
421
521
621
721
821
11B
422
522
622
722
822
12A
423
523
623
723
823
12B
424
524
624
724
824
13A
425
525
625
725
825
13B
426
526
626
726
826
14A
427
527
627
727
827
14B
428
528
628
728
828
15A
429
529
629
729
829
15B
430
530
630
730
830
16A
431
531
631
731
831
16B
432
532
632
732
832
17A
433
533
633
733
833
17B
434
534
634
734
834
Table B.9 Totalizer digital signals