Siemens SIMATIC S7-300 FM 350-1 - Page 69

Programming the FM 350-1
5.7 Programming FM 350-1 without FCs
FM 350-1 Counter module
Manual, 05/2011, A5E03648639-01
69
Transferring values
Values are also transferred using the complete acknowledgement principle with the FM 350-
1. If incorrect values are transferred, the FM 350-1 signals an operator error with the
feedback bit OT_ERR. You must then first acknowledge the operator error bit OT_ERR with
the operator error acknowledgement OT_ERR_A before you can transfer a new, correct
value.
Table 5- 20 Transferring the values depending on the operating mode
Operating mode Control bits
Counting L_DIRECT, L_PREPAR, T_CMP_V1, T_CMP_V2, C_DOPARA
Measure L_PREPAR, T_CMP_V1, T_CMP_V2, C_DOPARA
The figure shows an example of the chronological sequence for the value transfer during
initializing loading of the counter.
W
W
W
W
27B(55
27B(55B$
/B35(3$5
676B/B35(3$5
2SHUURUELW
2SHUURUDFNQRZOHGJHPHQW
&RQWUROELWIH
&KHFNEDFNELWIH
7KHYDOXHLVDFFHSWHG,IWKHYDOXHLVQRW
FRUUHFWWKHRSHUDWRUHUURUELWLVVHW
5HPRYDORIUHTXHVWDQGDFFHSWDQFHRIYDOXHVE\
WKH)0'HWHFWLRQRIDQRSHUDWRUHUURU
7KH)0DFNQRZOHGJHVWKHUHTXHVW
5HTXHVWYDOXHWUDQVIHUDQGPDNHYDOXHDYDLODEOH
Figure 5-5 Transferring values