WEG PLC300 User Manual - page 44
I/O Status
8-2 | PLC300
Expansions
If there are expansions, we access the screens that show their status by pressing .
The expansion screens depend on the kind of I/O that each expansion contains.
For instance, an IOA-01, which has 1 analog input, 2 analog outputs, 2 digital inputs and
2 digital outputs:
[ - S T A T U S P L C30 0
- ]
1 0 8 . . . 4 . . 1
I 1 0 8 . . 1 0 1 : 0 0 0 0 0 0 1 1
O 1 0 8 . . 1 0 1 : 0 0 0 0 0 0 1 0
The example screen shows the digital inputs and outputs of the expansion IOA-01, in the
slot 1, where the inputs DI101 and DI102, as well as the output DO102, are active.
By pressing the arrow , again, we can see the analog inputs of this expansion:
[- S T A T U S P L C30 0
- ]
AI10 1 : - 1 0 . 0 V - 1 9 . 0 m A
A I10 2 :
8 .3V
1 6 . 6 m A
←
AI102 only in the IOB card
By pressing the arrow , again, the analog inputs of this expansion are shown:
[ - S T A T U S P L C30 0
- ]
A O 1 0 1 : 8 .3V 1 6 . 6 m A
A O 1 0 2 : 1 . 0 V
2 . 0 m A
IOE Card (thermistor reading):
The IOE cards have five inputs for reading PTC, PT-100 or KTY-84 thermistors.
In the user program (ladder), the thermal sensors are treated as analog inputs (AI101...
AI105 or AI201...AI205).
The status screens show the temperature in each sensor, between -20 °C and +200 °C.
If the monitored temperature is lower than -20 °C the thermal sensor is probably with a
broken wire, which is indicated by the symbol: “=/=(FP)”.
[ - S T A T U S P L C30 0
- ]
S 1 0 1 :
1 0 5
o
C
S 1 0 2 :
- 13
o
C
S 1 03: = / = (F P )
By pressing the key again, the other two temperatures are shown:
[ - S T A T U S P L C30 0
- ]
S 1 0 4 :
5 8
o
C
S 1 0 5 :
2 7
o
C