turck BL20 Series - 12.1.14 Transfer of values;load function

391
2020/09
12.1.14 Transfer of values/load function
Control bits: LOAD_VAL, LOAD_PREPARE, LOAD_CMP_VAL1, LOAD_CMP_VAL2,
LOAD_DO_PARAM, LOAD_INTTIME, LOAD_UPLIMIT, LOAD_LOLIMIT
Controller requests value transfer/ value available
‚Reset understood by electronic module
ƒRequest revoked by controller/ value available
„Value accepted/ transfer complete
Count mode
The following values can be changed using the load function during operation:
 Counter status (LOAD_VAL)
 Load value (LOAD_PREPARE)
 Reference value1 (LOAD_CMP_VAL1)
 Reference value2 (LOAD_CMP_VAL2)
 Behavior of the digital outputs DO1/DO2 (LOAD_DO_PARAM)
Fig. 273: Transferring values with the load function
NOTE
Only one of the status bits1) mentioned should be set. Otherwise the ERR_LOAD error is
indicated until all the stated control bits have been reset.
NOTE
When changing the behavior of the digital output via the control interface/process output
(value LOAD_DO_PARAM) the values for pulse duration and hysteresis are changed as well!
These changes are stored in a volatile memory, i.e. when the module is reset (removed/fitted)
they are overwritten by the values configured via the gateway.
ab cd
t
Error bit
ERR_LOAD
Control bit
1)
Check-back
bit
STS_LOAD