Data Sheet

— Number of simultaneous calls of the client
instructions per connection (except
OPC_UA_ReadList,OPC_UA_WriteList,OPC_
UA_MethodCall), max.
1
— Number of simultaneous calls of the client
instructions
OPC_UA_ReadList,OPC_UA_WriteList and
OPC_UA_MethodCall, max.
5
— Number of registerable nodes, max.
5000
— Number of registerable method calls of
OPC_UA_MethodCall, max.
100
— Number of inputs/outputs when calling
OPC_UA_MethodCall, max.
20
● OPC UA server
Yes; Data access (read, write, subscribe), method call, custom
address space; embedded 2017 UA server profile V1.02
— Application authentication
Yes
— Security policies
Available security policies: None, Basic128Rsa15,
Basic256Rsa15, Basic256Sha256
— User authentication
"anonymous" or by user name & password
— Number of sessions, max.
48
— Number of accessible variables, max.
100000
— Number of registerable nodes, max.
20000
— Number of subscriptions per session, max.
20
— Sampling interval, min.
100ms
— Publishing interval, min.
200ms
— Number of server methods, max.
50
— Number of inputs/outputs per server
method, max.
20
— Number of monitored items, max.
2000; for 1 s sampling interval and 1 s send interval
— Number of server interfaces, max.
10
— Number of nodes for user-defined server
interfaces, max.
5000
Further protocols
● MODBUS
Yes; MODBUS TCP
Media redundancy
● Switchover time on line break, typ.
200ms; For MRP, bumpless for MRPD
● Number of stations in the ring, max.
50
Isochronous mode
Isochronous operation (application synchronized up
to terminal)
Yes; Via X1, with minimum OB 6x cycle of 500 µs
S7 message functions
Number of login stations for message functions, max. 32
Program alarms Yes
6ES7516-2PN00-0AB0 Subject to change without notice
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09/13/2019 © Copyright Siemens