Siemens SIMATIC S7-1500 System Manual page 128

Basics of program execution
7.3 Asynchronous instructions
The following table shows the maximum number of simultaneously running jobs for
asynchronous instructions (MODBUS TCP) for the various CPUs.
MOD BUS TCP
MB_CLIENT
MB_SERVER
The table below shows the maximum number of simultaneously running jobs for
asynchronous instructions (S7 communication) for the various CPUs. The S7 communication
instructions use a common pool of resources.
S7 communication
PUT
GET
USEND
URCV
BSEND
BRCV
The following table shows the maximum number of simultaneously running jobs for
asynchronous instructions (communications processors) for the various CPUs.
C ommunications p rocessors
PtP communication
Port_Config
Send_Config
Receive_Config
Send_P2P
Receive_P2P
Receive_Reset
Signal_Get
Signal_Set
Get_Features
Set_Features
U SS communication
USS_Port_Scan
MOD BUS (RTU)
Modbus_Comm_Load
ET 2 00S serial interface
S_USSI
SIMATIC NET CP
FTP_CMD
128
1 5 0 5 S 1 5 1 1 (F)
1 5 1 1 C
1 5 1 1 T
uses TSEND, TUSEND, TRCV, TURCV, TCON, TDISCON
uses TSEND, TUSEND, TRCV, TURCV, TCON, TDISCON
1 5 0 5 S 1 5 1 1 (F)
1 5 1 1 C
1 5 1 1 T
264 288
1 5 0 5 S 1 5 1 1 (F)
1 5 1 1 C
1 5 1 1 T
uses RDDEC, WRREC
uses RDDEC, WRREC
uses RDDEC, WRREC
uses RDDEC, WRREC
uses RDDEC, WRREC
uses RDDEC, WRREC
uses RDDEC, WRREC
uses RDDEC, WRREC
uses RDDEC, WRREC
uses RDDEC, WRREC
uses RDDEC, WRREC
uses RDDEC, WRREC
uses CREATE_DB
uses TSEND, TRCV, TCON, TDISCON
1 5 0 7 S 1 5 1 5 (F)
1 5 1 2 C 1 5 1 5 T
1 5 1 3 (F)
1 5 0 7 S 1 5 1 5 (F)
1 5 1 2 C 1 5 1 5 T
1 5 1 3 (F)
384 576
1 5 0 7 S 1 5 1 5 (F)
1 5 1 2 C 1 5 1 5 T
1 5 1 3 (F)
System Manual, 09/2016, A5E03461182-AD
1 5 1 6 (F) 1 5 1 7 (F)
1 5 17 T(F)
1 5 18(F)OD K
1 5 1 6 (F) 1 5 1 7 (F)
1 5 17 T(F)
1 5 18(F)OD K
768 960
1 5 1 6 (F) 1 5 1 7 (F)
1 5 17 T(F)
1 5 18(F)OD K
Automation system
1 5 1 8 (F)
1 5 1 8 (F)
1152
1 5 1 8 (F)