Siemens SIMATIC S7 - Active Partner Symbol Table

Libraries
9.4 Open user communication library
S7-200 SMART
536 System Manual, V2.3, 07/2017, A5E03822230-AF
Network 5
: The program returns error 25 when the RECV function receives more data than
the buffer can support. In our case, continue as if nothing happened.
9.4.4.3
Active partner symbol table
The table below lists the Symbol names, addresses, and comments for the Active partner
(client) program.
Symbol
Address
Comments
Always_On
SM0.0
Always ON
First_Scan_On
SM0.1
On for the first scan cycle only
State
VB0
IdleTime
VD4
IdleTimeStart
VD8
RecvGoodCount
VD20
RecvBadCount
VD24
RecvStartTime
VD28
RecvTime
VD32
FillPattern
VW12
RecvLength
VW16
SendLength
VW18
SendBufferW
VW1000
RecvBufferW
VW2000
StateConnect
1
StateConnectWait
2
StateIdle
3
StateIdleWait 4
StateTransmit
5
StateTransmitWait 6
StateRecv
7
StateRecvWait
8
StateRecvCheck
9
StateDisconnect
10
StateDisconnectWait
11
ExitSwitch
19
RecvTimeout
100
Milliseconds for receive timeout
IdleTimeDelay
250
Milliseconds between send commands