Siemens Simatic S7-1500 - Page 341

Basics of program execution
10.5 Asynchronous instructions
S7-1500R/H redundant system
340 System Manual, 01/2024, A5E41814787-AF
Table 10- 10 Lower-level instructions used for asynchronous instructions for communications proces-
sors
Communications pro-
cessors
1513R-1 PN 1515R-2 PN 1517H-3 PN 1518HF-4 PN
PtP communication
Port_Config
uses RDDEC, WRREC
Send_Config
uses RDDEC, WRREC
Receive_Config
uses RDDEC, WRREC
Send_P2P
uses RDDEC, WRREC
Receive_P2P
uses RDDEC, WRREC
Receive_Reset
uses RDDEC, WRREC
Signal_Get
uses RDDEC, WRREC
Signal_Set
uses RDDEC, WRREC
Get_Features
uses RDDEC, WRREC
Set_Features
uses RDDEC, WRREC
USS communication
USS_Port_Scan
uses RDDEC, WRREC
MODBUS (RTU)
Modbus_Comm_Load
uses RDDEC, WRREC
Reference
You can find more information on block parameter assignment in the STEP 7 online help.