Siemens Simatic S7-1500R System Manual page 168

Communication: maximum number of simultaneously running jobs
Table 7- 7
Open User Communi-
cation
TSEND
TUSEND
TRCV
TURCV
TCON
TDISCON
T_RESET
T_DIAG
TSEND_C
TRCV_C
Table 7- 8
MODBUS TCP
MB_CLIENT
MB_SERVER
Table 7- 9
Communications pro-
cessors
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
Reference
You can find additional information on block parameter assignment in the STEP 7 online
help.
S7-1500R/H redundant system
System Manual, 10/2018, A5E41814787-AA
Maximum number of simultaneous jobs for asynchronous instructions and lower-level in-
structions used for Open User Communication
1513R-1 PN
128
128
128
128
128
128
uses TSEND, TUSEND, TRCV, TCON, TDISCON
uses TSEND, TUSEND, TRCV, TURCV, TCON, TDISCON
Lower-level instructions used for asynchronous instructions for MODBUS TCP
1513R-1 PN
uses TSEND, TUSEND, TRCV, TURCV, TCON, TDISCON
uses TSEND, TUSEND, TRCV, TURCV, TCON, TDISCON
Lower-level instructions used for asynchronous instructions for communications proces-
sors
1513R-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
Basics of program execution
7.5 Asynchronous instructions
1515R-2 PN
192
192
192
192
192
192
1515R-2 PN
1515R-2 PN
1517H-3 PN
320
320
320
320
320
320
1517H-3 PN
1517H-3 PN
167