Data type & Addressing an IO Device

Hi every body,
I having problem with tag addressing to an IO Device(specially, SIMATIC S7-300, WITH S7NT300 PROTOCOL) in CitectSCADA. My Project tags are imported correct from a data source file in CSV format to CitectSCADA. Well, some tags are digital. So, data type must be digital for those. for example I specified a digital tag as below:
TAG NAME: ST1_DP_1_STR
IO DEVICE: IODev
CLUSTER: FireWaterPumpStation
DATA TYPE: DIGITAL
ADDRESS: D1
During the compile project, i receive sevral errors that says, bad IO Device Variable occured.
Whould you please, help me?

Hi again,
I found it
See the Bin folder; my path was:
C:\Program Files\Citect\CitectSCADA V7.10\Bin\S7NT Driver Help

Thanks for the follow up, glad you got it fixed!