App.3-3
Appendix 3-4 Self-diagnosis
(Related page: p3-10 to p3-11)
Appendix 3-4-1 Self-diagnosis mode 1
Function of self-diagnosis is same as NP1L-RS1/2/4. However, LED name is different.
(1) LED lighting check
Of the external LEDs of the module, the lighting condition of those operated by general purpose communication module
are checked. When the mode selection switch is set to “7,” “TS1,” “TS2,” “CH2 ALM” and “CH1 ALM” LEDs light up in this
order.
Appendix 3-4-2 Self-diagnosis mode 2
(1) RS to CS signal check
In this check, the general purpose communication module turns RS signal ON to check whether CS signal is looped back
and turns ON, and then checks that this signal turns OFF.
When both CH1 and CH2 are normal, “TS2” lights up; proceeds to step (2).
IF CH1 and/or CH2 is abnormal, “TS2” blinks (at 0.5-second intervals) after 5 seconds ; proceeds to step (2).
If CH1 is abnormal, “ERR” lights up while “TS2” blinks.
If CH2 is abnormal, “CH2 ALM” lights up while “TS2” blinks.
(2) ER to DR signal check
In this check, the general purpose communication module turns ER signal ON to check whether DR signal is looped back
and turns ON, and then checks that this signal turns OFF.
When both CH1 and CH2 are normal, “TS1” lights up; proceeds to step (3).
IF CH1 and/or CH2 is abnormal, “TS1” blinks (at 0.5-second intervals) after 5 seconds ; proceeds to step (3).
If CH1 is abnormal, “ERR” lights up while “TS1” blinks.
If CH2 is abnormal, “CH2 ALM” lights up while “TS1” blinks.
(3) RS-232C data check
The general purpose communication modules sends 16 bytes of data once and checks the looped back data received.
When both CH1 and CH2 are normal, “CH1 ALM” lights up; proceeds to step (4).
IF CH1 and/or CH2 is abnormal, “CH1 ALM” blinks (at 0.5-second intervals) after 10 seconds ; proceeds to step (4).
If CH1 is abnormal, “ERR” lights up while “CH1 ALM” blinks.
If CH2 is abnormal, “CH2 ALM” lights up while “CH1 ALM” blinks.
(4) Preservation of the result of the check
After 10 seconds of displaying the results from (3) above, the module returns to step (1). Here, if the setting of the mode
selection switch has been changed, Self-diagnosis Mode 2 is ended to enter the designated mode.
Appendix 3-5 Initialization Parameters
(Related page: p4-7)
.oN metI noitacificepS
1 .oNtroP
.eludomnoitacinummocesopruplarenegnotropecafretninasetangiseD
1HC:0
2HC:1
21 edom584-SR.3SR-L1PNfoesacnidesutoN
Appendix 3 Additional Explanation
for NP1L-RS3
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