SNTP Diagnostic data of 57 words, are available on CPUs and BMENOC0301/11 communication modules using Modbus function code 3 with the unit ID set to 100, offset Modbus Address 1218 and below is the MODBUS Register Mapping:
| Address | MS Byte | LS Byte | CIP Type | Comments |
| 1218 | MSW - MSB | MSW - LSB | Uint32 | Primary NTP Server IP Address |
| Offset + 01 | LSW - MSB | LSW - LSB | ||
| Offset + 02 | MSW - MSB | MSW - LSB | Uint32 | Secondary NTP Server IP Address |
| Offset + 03 | LSW - MSB | LSW - LSB | ||
| Offset + 04 | Unused | BYTE | Uint8 | Polling Period (in seconds) |
| Offset + 05 | Unused | BYTE | Uint8 | Update CPU with Module Time |
| Offset + 06 | MSW - MSB | MSW - LSB | Uint32 | Time Zone |
| Offset + 07 | LSW - MSB | LSW - LSB | ||
| Offset + 08 | MSB | LSB | Int16 | Time Zone Offset (in minutes) |
| Offset + 09 | Unused | BYTE | Uint8 | Daylight saving time bias (in minutes) |
| Offset + 10 | Unused | LSB | Uint8 | Daylight Saving Start Date - Month |
| Offset + 11 | Unused | LSB | Uint8 | Daylight Saving Start Date - week #, day of week |
| MS 4-bits: occurrence # (1 = 1st occurrence, 2 = 2nd occurrence…, 5 = fifth or last occurrence) | ||||
| LS 4-bits: day of the week (0 = Sunday…, 6 = Saturday) | ||||
| Offset + 12 | MSW - MSB | MSW - LSB | Uint32 | Daylight Saving Start Time (seconds elapsed from midnight) |
| Offset + 13 | LSW - MSB | LSW - LSB | ||
| Offset + 14 | Unused | LSB | Uint8 | Daylight Saving End Date - Month |
| Offset + 15 | Unused | LSB | Uint8 | Daylight Saving End Date - week #, day of week |
| Offset + 16 | MSW - MSB | MSW - LSB | Uint32 | Daylight Saving End Time (seconds elapsed from midnight) |
| Offset + 17 | LSW - MSB | LSW - LSB | ||
| Offset + 18 | Unused | BYTE | Uint8 | SNTP Mode |
| Offset + 19 | Unused | BYTE | Uint8 | Reserved |
| … | ||||
| Offset + 32 | Unused | BYTE | Uint8 | Reserved |
| Offset + 33 | MSW - MSB | MSW - LSB | UDINT | Network Time Service Status |
| Offset + 34 | LSW - MSB | LSW - LSB | ||
| Offset + 35 | MSW - MSB | MSW - LSB | UDINT | Link to NTP Server Status |
| Offset + 36 | LSW - MSB | LSW - LSB | ||
| Offset + 37 | MSW - MSB | MSW - LSB | UDINT | Current NTP Server IP Address |
| Offset + 38 | LSW - MSB | LSW - LSB | ||
| Offset + 39 | MSW - MSB | MSW - LSB | UDINT | NTP NTP Server Type |
| Offset + 40 | LSW - MSB | LSW - LSB | ||
| Offset + 41 | MSW - MSB | MSW - LSB | UDINT | NTP Server Time Quality |
| Offset + 42 | LSW - MSB | LSW - LSB | ||
| Offset + 43 | MSW - MSB | MSW - LSB | UDINT | Number of NTP Requests Sent |
| Offset + 44 | LSW - MSB | LSW - LSB | ||
| Offset + 45 | MSW - MSB | MSW - LSB | UDINT | Number of Communication Errors |
| Offset + 46 | LSW - MSB | LSW - LSB | ||
| Offset + 47 | MSW - MSB | MSW - LSB | UDINT | Number of NTP Reponses Received |
| Offset + 48 | LSW - MSB | LSW - LSB | ||
| Offset + 49 | MSB | LSB | UINT | Last Error |
| Offset + 50 | MSW - MSB | MSW - LSB | UDINT | Current Time |
| Offset + 51 | LSW - MSB | LSW - LSB | ||
| Offset + 52 | MSB | LSB | UINT | Current Date |
| Offset + 53 | MSW - MSB | MSW - LSB | UDINT | Daylight Savings Status |
| Offset + 54 | LSW - MSB | LSW - LSB | ||
| Offset + 55 | MSW - MSB | MSW - LSB | DINT | Time Since Last Update |
| Offset + 56 | LSW - MSB | LSW - LSB |
Publicado para: Schneider Electric España
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