Chapter 4 Deployment of the CPU 21x-2BT10 with TCP/IP Manual VIPA CPU 21x
4-18 HB103E - Rev. 05/45
Function overview
In the following the functions are listed that are supported by the CP of the
CPU 21x-2BT10 starting with CP firmware version 1.7.4:
Function Property
Maximum number of
productive connections
16
TCP connections SEND, RECEIVE, FETCH PASSIVE, WRITE
PASSIVE
Connection establishment active and passive,
supports unspecified connection partner
ISO-on-TCP
connections
(RFC1006)
SEND, RECEIVE, FETCH PASSIVE, WRITE
PASSIVE
Connection establishment active and passive,
supports unspecified connection partner
UDP connections SEND and RECEIVE
The transfer of the telegrams is not
acknowledged, i.e. the loss of messages is not
recognized by the send block.
UDP Broadcast
connection
SEND
UDP Multicast
connection
SEND and RECEIVE
Data block length max. 64kByte (max. 2KByte at UDP)
VIPA handling blocks For connection commands at the PLC:
AG_SEND (FC5) / AG_RECEIVE (FC6)
Any call without lock in all OBs
Function Property
Maximum number of
PG/OP connections
32 (each 1 connection is reserved for PG and OP)
Diagnostic Supports NCM diagnostic via Ethernet
Search within network Supports Siemens SIMATIC Manager search
10/100MBit Switch happens automatically
Outline
Configurable
connections
PG connections
and diagnostic