Siemens SIMATIC ET 200SP System Manual page 131

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 (communication processors) for the various CPUs.
Communications processors
PtP communication
Port_Config
Send_Config
Receive_Config
Send_P2P
Receive_P2P
Receive_Reset
Signal_Get
Signal_Set
Get_Features
Set_Features
USS communication
USS_Port_Scan
MODBUS (RTU)
Modbus_Comm_Load
ET 200S serial interface
S_USSI
SIMATIC NET
FTP_CMD
Distributed I/O system
System Manual, 12/2015, A5E03576849-AF
CPU 1510SP-1 PN
CPU 1510SP F-1 PN
192
CPU 1510SP-1 PN
CPU 1510SP F-1 PN
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
Basics of program execution
7.3 Asynchronous instructions
CPU 1512SP-1 PN
CPU 1512SP F-1 PN
264
CPU 1512SP-1 PN
CPU 1512SP F-1 PN
131