Siemens FM 450-1 - Page 41

STL
T FM450_DB_K1.CH_ADR // Transfer of the channel address for channel 1
L 32 // User data interface length = 32
T FM450_DB_K1.U_D_LGTH // Transfer of the user data interface length
Channel 2
L 512 // Module address = 512
T FM450_DB_K2.MOD_ADR // Transfer of module address
L P# 544.0 // Module address + 32 in pointer format
T FM450_DB_K2.CH_ADR // Transfer of the channel address for channel 2
L 32 // User data interface length = 32
T FM450_DB_K2.U_D_LGTH // Transfer of the user data interface length
Call
The FC CNT_CTRL can be called once per counter either cyclically or in a time-controlled
program. Calling in the interrupt program is not permissible.
Calling the FC CNT_CTRL in the STL and LAD representations is rendered below.
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Figure 6-1 Calling the FC CNt_CTRL
Parameters of the FC CNT_CTRL
Name Declaration type Data type Meaning The user... The block...
DB_NO INPUT BLOCK_DB Number of the data block
with the counter data
enters this queries this
SW_GATE INPUT BOOL "SW gate (start/stop)" coun‐
ter control bit
sets and resets this queries this
GATE_STP INPUT BOOL "Stop gate" counter control bit sets and resets this queries this
OT_ERR_A INPUT BOOL Acknowledge operator error sets and resets this queries this
OT_ERR OUTPUT BOOL Operator error occurred queries this sets and resets this
Program
6.2 The FC CNT_CTRL function
Counter module FM 450-1
Equipment Manual, 03/2022, A5E03648739-AC 41