Technical Specifications
Document No. D109-010
Page 97 of 108
Revision 1.15
Maximum DNP3 request
size per mapped item in
Reactive Tag Mode
1000 bytes
Maximum DNP3 request
size per mapped item in
Scheduled Tag Mode
230 bytes
Maximum Logix Controller
support
3
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
Table 8.4 – DNP3 specification
8.6.
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
Table 8.5 – DNP3 Secure Authentication specification
