DNP3
| Specification | Rating |
| Reactive Tag Mode | Max 30 mapping items |
| Scheduled Tag mode | Max 30 mapping items |
| Application Functions Supported | Read Write Select/Operate Direct-Operate Direct-Operate-No-Response Confirm (only in Reactive Mode) Immediate Freeze (only in Reactive Mode) Immediate Freeze No Response (only in Reactive Mode) Immediate Freeze and Clear (only in Reactive Mode) Immediate Freeze and Clear No Response (only in Reactive Mode) Cold Restart (only in Reactive Mode) Enable / Disable Unsolicited Messages (only in Reactive Mode) Delay Measure (only in Reactive Mode) Record Current Time (only in Reactive Mode) Unsolicited Response (only in Reactive Mode) Authentication Request Authentication Response |
| Maximum DNP3 objects per request | 30 |
| Maximum DNP3 request size per mapped item in Reactive Tag Mode | 1000 bytes |
| Maximum DNP3 request size per mapped item inScheduled Tag Mode | 230 bytes |
| Maximum Logix Controller support | 3 |
| Unsolicited Response support | Yes |
| Unsolicited Response support | Yes |
| Maximum event buffer per DNP3 group | 100,000 (total of 900,000) |
| Number of Commands per Request | 1 |
| Event Read Interval | 10ms |
DNP3 Secure Authentication
| Specification | Rating |
| Key Change Method Supported | Pre-shared |
| MAC Algorithms Supported |
HMAC SHA-1 encryption (4 octets – serial) – for legacy support HMAC SHA-1 encryption (8 octets – serial) HMAC SHA-1 encryption (10 octets – networked) HMAC SHA-256 encryption (8 octets – serial) HMAC SHA-256 encryption (16 octets – networked) AES-GMAC (12 octets) |
| Key Wrap Algorithms Supported |
AES-128 Key Wrap AES-256 Key Wrap |
| Aggressive Mode Supported | Yes |