Siemens SIMATIC S7-300 FM 350-1, Manual

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Programming the FM 350-1
5.7 Programming FM 350-1 without FCs
FM 350-1 Counter module
Manual, 05/2011, A5E03648639-01
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Explanation of the control bits for the count modes
Table 5- 13 Explanation of the control bits for the count modes
Control bits Explanation
C_DOPARA Set this bit to change the function and reaction of DO0 and DO1, and the hysteresis and pulse
duration.
The values of bytes 0 to 2 are accepted as a new function, hysteresis and pulse duration at
DO0 and DO1.
Transfer the old values if you want to prevent changes.
CTRL_DO0 Enable DO0
Set this bit to enable output DO0.
CTRL_DO1 Enable DO1
Set this bit to enable output DO1.
ENSET_DN Set this bit to enable loading of the counter for up counts
ENSET_UP Set this bit to enable loading of the counter for down counts
GATE_STP Set this bit to close the internal gate.
L_DIRECT Set this bit to enable direct and preparatory loading of the counter.
L_PREPAR Set this bit to enable preparatory loading of the counter.
NEUSTQ Set this bit to acknowledge a startup of FM 350-1.
After its restart, FM 350-1 will not recognize any control or data input unless this bit has been
set. FC CNT_CNTL1 sets the NEUSTQ bit when the return signal FM_NEUST is set, and the
return signal FM_NEUSTQ = 0. FC CNT_CNTL1 resets the bit when FM 350-1 has reset the
FM_NEUST bit and set the FM_NEUSTQ bit.
If you are not using FC CNT_CNTL1, the restart must be coordinated in the user program.
OT_ERR_A Set this bit to acknowledge an operator error.
For detailed information on operator errors, read the checkback interface before you
acknowledge the error. The error message is no longer valid after its acknowledgement.
RES_SYNC Use this bit to reset and acknowledge the check-back bit STS_SYNC and thus enable loading
of the counter at synchronization input DI-Set.
RES_ZERO Use this bit to reset the check-back bits STS_ZERO, STS_OFLW, STS_UFLW, STS_COMP1
and STS_COMP2.
SET_DO0 Provided you have set the output reaction "inactive", and the enable bit CRTL_DO0 is set, you
can use this bit to toggle the digital output DO0 on and off.
SET_DO1 Provided you have set the output reaction "inactive", and the enable bit CRTL_DO1 is set, you
can use this bit to toggle the digital output DO1 on and off.
SW_GATE Set/reset this bit to open/close the SW gate.
T_CMP_V1 Set this bit to load the value of bytes 4 to 7 to comparison value 1.
T_CMP_V2 Set this bit to load the value of bytes 8 to 11 to comparison value 2.