Siemens SIMATIC S7-300 FM 350-1 Manual page 47

Table 5- 8 Parameters for Transferring Values in the DB (measuring modes)
DB address Parameter
14.0 LOAD_VAL
14.0 LOAD_VAL
15.0
16.0
17.0
18.0 CMP_V1
22.0 CMP_V2
Startup characteristics
As soon as the CNT_CTL1 function detects a startup (CPU start or FM start), any pending
job is deferred and the startup is acknowledged first. Any job you have already initiated is
carried out once the startup is finished and is therefore not lost.
Error Messages
If an operator error occurred when the FC is called, it is reported in the OT_ERR parameter.
The error information can then be read out in DB (OT_ERR_B variable). With the help of the
OT_ERR_A parameter, you can then acknowledge operator errors. No new operator error
will be reported until you have acknowledged the previous one.
FM 350-1 Counter module
Manual, 05/2011, A5E03648639-01
Meaning
Low limit; load with function parameter L_PREPAR
Behavior of DO0; define with function parameter: C_DOPARA
Bits 2 to 7 Bit 1
Irrelevant 0
Irrelevant 0
Irrelevant 1
Irrelevant 1
Reserve = 0
Reserve = 0
Reserve = 0
High limit; Load with function parameter T_CMP_V1
Update time; Load with function parameter T_CMP_V2
5.2 The function FC CNT_CTL1 (FC 2)
Bit 0 Reaction of output DO0
0 No comparison
1 Out of limits
0 Below the low limit
1 Above the high limit
Programming the FM 350-1
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