Waarom staan alle fragmentregisters op nul na provisioning?

Veel DER-apparaten wissen of maskeren de fragmentregisters na een geslaagde certificaatopslag. Nul lezen op frg1 tot en met frg80 na een volledige schrijfreeks is normaal. Controleer het resultaat via certuid, role en seq in plaats van de ruwe fragmentdata.

De Gateway verbindt maar certuid geeft altijd nul terug. Wat nu?

Het apparaat heeft Model 9 mogelijk nog niet actief in de Modbus-registermap. Controleer of Secure SunSpec Modbus is ingeschakeld in de communicatie-instellingen van het apparaat. Controleer ook of het Modbus unit-ID klopt; een verkeerd ID zorgt ervoor dat alle registers nul of geen reactie teruggeven.

Wat gebeurt er als ik fragmentregisters in de verkeerde volgorde schrijf?

Fragmenten in de verkeerde volgorde schrijven of een onjuist seq-waarde gebruiken zorgt er meestal voor dat het apparaat de volledige certificaatoverdracht afwijst en de certificaatopslag ongewijzigd laat. Schrijf seq altijd vóór de fragmentregisters en stel totln en frgln nauwkeurig in. Begin de overdracht opnieuw vanaf fragment 1 als er een fout optreedt.

Is het veilig om de schrijfbare registers op een productiesysteem te schrijven?

Schrijven naar certuid, certrole, fmt, typ, totln, frgln, de fragmentregisters, uid, role of alg laadt een nieuw certificaat in de beveiligde opslag van het DER-apparaat. Een onjuist certificaat of onjuiste rolwaarde kan rechtmatige operatortoegang blokkeren of de autorisatiestatus van het apparaat ongeldig maken. Test certificaatprovisioning altijd eerst op een niet-productieapparaat en bewaar een back-up van het vorige certificaat.

Gratis Modbus template SunSpec Model 9 — Set Operator Security Certificate

Name: SunSpec Model 9 — Set Operator Security Certificate
Brand: SunSpec
SKU: c0480786-7752-417e-9a51-854bbda4ef20

SunSpec Model 9 is een protocoldefinitie van de SunSpec Alliance waarmee je via Modbus TCP beveiligingscertificaten voor operators kunt inladen op DER-apparaten, zoals omvormers en batterijopslag. De template bevat het certificaat-ID, de rol, het formaat, het type, de totale lengte en fragmentlengte, 80 fragmentregisters voor de certificaatpayload, een schrijftijdstempel, volgnummer, gebruikers-ID, operatorrol, cryptografisch algoritme en het aantal fragmenten. Met deze template verifieer je in je ModbusCloud-portal of het certificaat correct is afgeleverd en geeft de apparaat de juiste toegangsrol.

Registers (93)

93 lezen / 91 schrijven

Naam	Adres	Functie	Type	Toegang
id SunSpec model identifier, fixed value 9 for this model.	0	FC03	uint16	R
l Length of the model block in 16-bit registers.	1	FC03	uint16	R
certuid Unique identifier of the certificate being transferred.	2	FC03	uint16	R/W
certrole Role encoded in the certificate, maps to an access role.	3	FC03	uint16	R/W
fmt Certificate encoding format, e.g. DER or PEM.	4	FC03	uint16	R/W
typ Certificate type, e.g. X.509v3 client or CA certificate.	5	FC03	uint16	R/W
totln Total byte length of the complete certificate payload.	6	FC03	uint16	R/W
frgln Byte length of the current certificate fragment being written.	7	FC03	uint16	R/W
frg1 Certificate payload fragment 1, one 16-bit word.	8	FC03	uint16	R/W
frg2 Certificate payload fragment 2, one 16-bit word.	9	FC03	uint16	R/W
frg3 Certificate payload fragment 3, one 16-bit word.	10	FC03	uint16	R/W
frg4 Certificate payload fragment 4, one 16-bit word.	11	FC03	uint16	R/W
frg5 Certificate payload fragment 5, one 16-bit word.	12	FC03	uint16	R/W
frg6 Certificate payload fragment 6, one 16-bit word.	13	FC03	uint16	R/W
frg7 Certificate payload fragment 7, one 16-bit word.	14	FC03	uint16	R/W
frg8 Certificate payload fragment 8, one 16-bit word.	15	FC03	uint16	R/W
frg9 Certificate payload fragment 9, one 16-bit word.	16	FC03	uint16	R/W
frg10 Certificate payload fragment 10, one 16-bit word.	17	FC03	uint16	R/W
frg11 Certificate payload fragment 11, one 16-bit word.	18	FC03	uint16	R/W
frg12 Certificate payload fragment 12, one 16-bit word.	19	FC03	uint16	R/W
frg13 Certificate payload fragment 13, one 16-bit word.	20	FC03	uint16	R/W
frg14 Certificate payload fragment 14, one 16-bit word.	21	FC03	uint16	R/W
frg15 Certificate payload fragment 15, one 16-bit word.	22	FC03	uint16	R/W
frg16 Certificate payload fragment 16, one 16-bit word.	23	FC03	uint16	R/W
frg17 Certificate payload fragment 17, one 16-bit word.	24	FC03	uint16	R/W
frg18 Certificate payload fragment 18, one 16-bit word.	25	FC03	uint16	R/W
frg19 Certificate payload fragment 19, one 16-bit word.	26	FC03	uint16	R/W
frg20 Certificate payload fragment 20, one 16-bit word.	27	FC03	uint16	R/W
frg21 Certificate payload fragment 21, one 16-bit word.	28	FC03	uint16	R/W
frg22 Certificate payload fragment 22, one 16-bit word.	29	FC03	uint16	R/W
frg23 Certificate payload fragment 23, one 16-bit word.	30	FC03	uint16	R/W
frg24 Certificate payload fragment 24, one 16-bit word.	31	FC03	uint16	R/W
frg25 Certificate payload fragment 25, one 16-bit word.	32	FC03	uint16	R/W
frg26 Certificate payload fragment 26, one 16-bit word.	33	FC03	uint16	R/W
frg27 Certificate payload fragment 27, one 16-bit word.	34	FC03	uint16	R/W
frg28 Certificate payload fragment 28, one 16-bit word.	35	FC03	uint16	R/W
frg29 Certificate payload fragment 29, one 16-bit word.	36	FC03	uint16	R/W
frg30 Certificate payload fragment 30, one 16-bit word.	37	FC03	uint16	R/W
frg31 Certificate payload fragment 31, one 16-bit word.	38	FC03	uint16	R/W
frg32 Certificate payload fragment 32, one 16-bit word.	39	FC03	uint16	R/W
frg33 Certificate payload fragment 33, one 16-bit word.	40	FC03	uint16	R/W
frg34 Certificate payload fragment 34, one 16-bit word.	41	FC03	uint16	R/W
frg35 Certificate payload fragment 35, one 16-bit word.	42	FC03	uint16	R/W
frg36 Certificate payload fragment 36, one 16-bit word.	43	FC03	uint16	R/W
frg37 Certificate payload fragment 37, one 16-bit word.	44	FC03	uint16	R/W
frg38 Certificate payload fragment 38, one 16-bit word.	45	FC03	uint16	R/W
frg39 Certificate payload fragment 39, one 16-bit word.	46	FC03	uint16	R/W
frg40 Certificate payload fragment 40, one 16-bit word.	47	FC03	uint16	R/W
frg41 Certificate payload fragment 41, one 16-bit word.	48	FC03	uint16	R/W
frg42 Certificate payload fragment 42, one 16-bit word.	49	FC03	uint16	R/W
frg43 Certificate payload fragment 43, one 16-bit word.	50	FC03	uint16	R/W
frg44 Certificate payload fragment 44, one 16-bit word.	51	FC03	uint16	R/W
frg45 Certificate payload fragment 45, one 16-bit word.	52	FC03	uint16	R/W
frg46 Certificate payload fragment 46, one 16-bit word.	53	FC03	uint16	R/W
frg47 Certificate payload fragment 47, one 16-bit word.	54	FC03	uint16	R/W
frg48 Certificate payload fragment 48, one 16-bit word.	55	FC03	uint16	R/W
frg49 Certificate payload fragment 49, one 16-bit word.	56	FC03	uint16	R/W
frg50 Certificate payload fragment 50, one 16-bit word.	57	FC03	uint16	R/W
frg51 Certificate payload fragment 51, one 16-bit word.	58	FC03	uint16	R/W
frg52 Certificate payload fragment 52, one 16-bit word.	59	FC03	uint16	R/W
frg53 Certificate payload fragment 53, one 16-bit word.	60	FC03	uint16	R/W
frg54 Certificate payload fragment 54, one 16-bit word.	61	FC03	uint16	R/W
frg55 Certificate payload fragment 55, one 16-bit word.	62	FC03	uint16	R/W
frg56 Certificate payload fragment 56, one 16-bit word.	63	FC03	uint16	R/W
frg57 Certificate payload fragment 57, one 16-bit word.	64	FC03	uint16	R/W
frg58 Certificate payload fragment 58, one 16-bit word.	65	FC03	uint16	R/W
frg59 Certificate payload fragment 59, one 16-bit word.	66	FC03	uint16	R/W
frg60 Certificate payload fragment 60, one 16-bit word.	67	FC03	uint16	R/W
frg61 Certificate payload fragment 61, one 16-bit word.	68	FC03	uint16	R/W
frg62 Certificate payload fragment 62, one 16-bit word.	69	FC03	uint16	R/W
frg63 Certificate payload fragment 63, one 16-bit word.	70	FC03	uint16	R/W
frg64 Certificate payload fragment 64, one 16-bit word.	71	FC03	uint16	R/W
frg65 Certificate payload fragment 65, one 16-bit word.	72	FC03	uint16	R/W
frg66 Certificate payload fragment 66, one 16-bit word.	73	FC03	uint16	R/W
frg67 Certificate payload fragment 67, one 16-bit word.	74	FC03	uint16	R/W
frg68 Certificate payload fragment 68, one 16-bit word.	75	FC03	uint16	R/W
frg69 Certificate payload fragment 69, one 16-bit word.	76	FC03	uint16	R/W
frg70 Certificate payload fragment 70, one 16-bit word.	77	FC03	uint16	R/W
frg71 Certificate payload fragment 71, one 16-bit word.	78	FC03	uint16	R/W
frg72 Certificate payload fragment 72, one 16-bit word.	79	FC03	uint16	R/W
frg73 Certificate payload fragment 73, one 16-bit word.	80	FC03	uint16	R/W
frg74 Certificate payload fragment 74, one 16-bit word.	81	FC03	uint16	R/W
frg75 Certificate payload fragment 75, one 16-bit word.	82	FC03	uint16	R/W
frg78 Certificate payload fragment 78, one 16-bit word.	83	FC03	uint16	R/W
frg79 Certificate payload fragment 79, one 16-bit word.	84	FC03	uint16	R/W
frg80 Certificate payload fragment 80, one 16-bit word.	85	FC03	uint16	R/W
ts Unix timestamp of the certificate write operation, seconds.	86	FC03	uint32	R/W
ms Millisecond sub-second component of the write timestamp.	88	FC03	uint16	R/W
seq Sequence number for fragment ordering during multi-write transfers.	89	FC03	uint16	R/W
uid Operator user identifier associated with this certificate operation.	90	FC03	uint16	R/W
role Operator role being granted or updated by this certificate.	91	FC03	uint16	R/W
alg Cryptographic algorithm used to sign or encode the certificate.	92	FC03	uint16	R/W
n Number of certificate fragments in the complete transfer sequence.	93	FC03	uint16	R/W