Siemens SIMATIC ET 200pro - 4.2 Project planning

Basics of program execution
6.2 Asynchronous instructions
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
56 Operating Instructions, 11/2019, A5E35873416-AC
Extended instructions
CPU 1516pro-2 PN
Data block functions
CREATE_DB
10
READ_DBL
10
WRIT_DBL 10
DELETE_DB
10
File handling
FileReadC
10
FileWriteC
10
Basic instructions: maximum number of simultaneously running jobs
Table 6- 5 Lower-level instructions used for asynchronous basic instructions
Basic instructions
CPU 1516pro-2 PN
Array DB
ReadFromArrayDBL
uses READ_DBL (see Extended instructions)
WriteToArrayDBL
uses READ_DBL, WRIT_DBL (see Extended instructions)
Communication: maximum number of simultaneously running jobs
Table 6- 6 Maximum number of simultaneous jobs for asynchronous instructions and lower-level in-
structions used for Open User Communication
Open User Communi-
cation
CPU 1516pro-2 PN
TSEND
TUSEND
128
TRCV
TURCV
128
TCON
128
TDISCON
128
T_RESET
128
T_DIAG
128
T_CONFIG
1
TSEND_C
uses TSEND, TUSEND, TRCV, TCON, TDISCON
TRCV_C
uses TSEND, TUSEND, TRCV, TURCV, TCON, TDISCON
TMAIL_C
uses TSEND, TUSEND, TRCV, TURCV, TCON, TDISCON