QTech Data Systems DNP3 RTU - Manual (Page 17)

DATRAN XL4 RTU – Owners Manual – v1.1 June 2012
www.qtech.co.nz Page 17
Location of Digital Outputs Over-Current Jumper J28.
Open Circuit Detection Open Circuit Detection Open Circuit Detection Open Circuit Detection
The DATRAN XL4 can detect if there is a load connected to each digital output channel. It achieves this by
sourcing a 50uA sensing current through each digital output channel when they are in the OFF state.
Fault Status Reporting Fault Status Reporting Fault Status Reporting Fault Status Reporting
The DATRAN XL4 can be configured to display Output Protection and Open Circuit Detection status information on
the status LEDs. This feature only applies to bank 1 of the digital outputs.
If the DATRAN XL4 has been configured to display digital output status information, and one of the above
mentioned faults occurs on a given channel, the corresponding status LED will flash. This feature can be
selectively enabled for each channel, which is useful if not all digital output channels are intended to be connected
to an external device.
Analog I/O Analog I/O Analog I/O Analog I/O
The XL4 RTU has six analog I/O channels and can be reconfigured to suit a wide range of analog input or output
requirements. The analog I/O uses a 9 way connector labelled ‘ANALOG I/O’ located on the front panel of the
DATRAN XL4. The analog I/O channels are numbered 1 to 6.
The configuration each analog I/O channel is achieved by a combination of range setting and mode setting.
Analog I/O Ranges Analog I/O Ranges Analog I/O Ranges Analog I/O Ranges
Each channel can be individually configured to use the following voltage or current ranges.
0 to 5V
0 to 10V
0 to 20mA
4 to 20mA.
By default the factory settings for all Analog I/O are set to 4-20 mA inputs.