I/O Status
PLC300 | 8-5
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)”.
S101: 105
o
C
S102: -13
o
C
The two following temperatures will be shown by pressing the <> key.
S103:=/=(FP)
S104: 58
o
C
By pressing the <> key again, the last temperature is shown.
S105: 27
o
C
Status of the Ethernet Interface
You may check on the last two screens, the MAC Address of the PLC300 and its current
IP address.
MAC Address:
3831AC 00 00 00
IP Address:
192.168.0.1
Date, time and Scan cycle
After the Ethernet status, we can see a screen that shows the user program scan cycle,
besides the RTC date and time:
Scan: 999.9 ms
06/02/12 16:18
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