Renaming Standard Functions - Siemens SIMATIC S7 Manual

MOD_CLI and
MOD_SERV:
SFCs for
Miscellaneous
Functions
TCP_COMM:
SFCs for
Miscellaneous
Functions
6.5

Renaming Standard Functions

Inducement
Renaming
MODBUS / TCP communication via the integrated PN interface of the CPU
2XV9450-1MB02; Manual edition 2.1
The FBs MOD_CLI and MOD_SERV use the following SFCs from the
standard library:
•
SFC20 „BLKMOV"
•
SFC24 "TEST_DB"
The FB TCP_COMM uses the following SFB from the standard library in
addition to the T-blocks:
•
SFB4 „TON"
If the numbers of the standard functions are already assigned within your
project or if the number interval is reserved for a different application, it is
possible to rename the internally called function blocks FB63, FB64, FB65
and FB66 of FB TCP_COMM or the called function blocks MOD_CLI,
MOD_SERV und TCP_COMM.
It is not possible to rename the system functions SFC6, SFC20, SFC24,
SFC51, SFC52 and SFB4.
To rename the blocks proceed as described subsequently:
1. Change the numbers of the function blocks in the desired numbers in
your program in SIMATIC Manager.
2. Add the modifications in the symbolism table supplementary.
A modification of the FB numbers via "Extras -> Re-wire" is not necessary.
Function Block MODBUSPN
6-16