User manual SEFELEC 5x Series 157 v1.06
MEASUREMENT-DISCHARGE CYCLE
Note:
The PLC (Programmable Logic Controller) function must be select-
ed in the configuration menu (Interface: PLC).
To make a measurement (see diagram no. 2)
Activate the CTRLIN signal (High Logic state).
The PLC must specify the measurement function on the standard input.
The PLC must choose a setting number that will be encoded in binary on inputs N0 to
N7, N0 being the least significant bit and N7 being the most significant bit.
Put the signal MES_DCH at the high logic state to start the measurement. Note: The
status of the inputs CTRLIN, Type, N0 to N7 are only taken into account on a rising
edge of the MES_DCH signal. This signal must be in the high state during the meas-
urement.
As soon as the first measurement is done, the device sends a CTRLOUT signal
which remains stable until the validation (by a rising edge of the signal MES_DCH) of
the setting to the low state of the CTRLIN signal. Other signals may appear depend-
ing on the progress of the test: an error signal (ERROR), an end of test (EOT) signal,
and a signal indicating if the test is PASS or FAIL (PLCPASS or PLCFAIL). All these
signals are active at the high logic state.
To switch to discharge, put the signal MES_DCH at a low level. To restore the local control
to the device, eliminate the high state on the CTRLIN signal, enable a high state on
MES_DCH, and disable it (see diagram no. 1).
Diagram No 1: Disabling of the CTRLOUT signal
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