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MODEM MD720 in OPC Mode
5.4
PIN in OPC-Mode
Enter the PIN
If the LED "S" blinks slowly (1 time per second), the MODEM MD720 waits for a
PIN entry.
In OPC-Mode the PIN is sent by the connected PLC to the MODEM MD720.
Therefore you need to enter the PIN in the data module of your SPS program with
reference to the program module WDC_INIT (See System manual SINAUT MICRO
SC). Please check if the PLC and the MODEM MD720 are connected together.
The LED S (Status) blinks fast
If the LED S blinks fast (4 times per second), either the SIM card was not detected
or he SIM card is PUK-blocked, because a wrong PIN has been entered too often.
1. Please check, if the SIM card has been inserted correctly into the device (refer
to chapter 2 Inserting the SIM card).
2. Please check, if the SIM card is PUK-blocked. Insert the SIM card into a
common mobile phone. The mobile phone will display, if the SIM card is PUK-
blocked. If the SIM card is PUK-blocked, please enter the PUK and then a PIN.
You can use a common mobile phone to do this.
3. Before you enter again the SIM card into the MODEM MD720, please
investigate why the SIM card has been PUK-blocked: Which PIN have you
entered into your PLC program?
4. Please check and eventually reset the parameter SIMSTATE of the MODEM
MD720.
Check and reset the parameter SIMSTATE
The parameter SIMSTATE will be displayed when you press the SET button (refer
to 6.2 Getting the current settings and values):
SIMSTATE=SIM_OK
SIMSTATE=SIM_ERROR
SIMSTATE=SIM_PROBLEM
In case of SIMSTATE=SIM_ERROR or SIMSTATE=SIM_PROBLEM please
proceed as follows:
56
Ready for operation
Wrong PIN; one wrong PIN entry
Wrong PIN; two wrong PIN entries or no SIM
detected
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