Protocols
Number of connections
• Number of connections, max. 96; via integrated interfaces of the CPU and
connected CPs / CMs
• Number of connections reserved for
ES/HMI/web
10
• Number of connections via integrated
interfaces
64
• Number of S7 routing pathsYes; As MRP redundancy manager and/or MRP
client; max. number of devices in the ring: 50
– MRPD Yes; Requirement: IRT
– PROFIenergy Yes
– Prioritized startup Yes; Max. 32 PROFINET devices
– Number of connectable IO Devices,
max.
128; In total, up to 256 distributed I/O devices can
be connected via AS-i, PROFIBUS or PROFINET
– Of which IO devices with IRT, max. 64
– Number of connectable IO Devices for
RT, max.
128
– of which in line, max. 128
– Number of IO Devices that can be simultaneously
activated/deactivated, max.
8; in total across all interfaces
– Number of IO Devices per tool, max. 8
– Updating times The minimum value of the update time also
depends on communication share set for
PROFINET IO, on the number of IO devices, and
on the quantity of configured user data• S7 communication, as server Yes
• S7 communication, as client Yes
• User data per job, max. See online help (S7 communication, user data
size)
Open IE communication
• TCP/IP Yes
– Data length, max. 64 kbyte
– several passive connections per port,
supported
Yes
• ISO-on-TCP (RFC1006) Yes
– Data length, max. 64 kbyte
• UDP Yes
– Data length, max. 2 kbyte; 1 472 bytes for UDP broadcast
– UDP multicast Yes; Max. 5 multicast circuits
• DHCP No
• SNMP Yes
• DCP Yes
• LLDP Yes
Web server
• HTTP Yes; Standard and user pages
• HTTPS Yes; Standard and user pages
OPC UA
• Runtime license required Yes
• OPC UA Server Yes; Data access (read, write, subscribe),
method call, custom address space
– Application authentication Yes
– Security policies Available security policies: None,
Basic128Rsa15, Basic256Rsa15,
Basic256Sha256
– User authentication "anonymous" or by user name & password
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. 50sochronous operation
(application synchronized up to terminal)
Yes; With minimum OB 6x cycle of 625 µs
Equidistance Yes
S7 message functions
Number of login stations for message
functions, max.
32
Program alarms Yes
Number of configurable program alarms 5 000
Number of simultaneously active program
alarms
• Number of program alarms 300
• Number of alarms for system diagnostics 100
• Number of alarms for motion technology
objects
80
Test commissioning functions
Joint commission (Team Engineering) Yes; Parallel online access possible for up to 5
engineering systems
Status block Yes; Up to 8 simultaneously (in total across all
ES clients)
Single step No
Number of breakpoints 8
Status/control
• Status/control variable Yes
• Variables Inputs/outputs, memory bits, DBs, distributed
I/Os, timers, counters
• Number of variables, max.